HRS120 High Resolution Powered Subwoofer Owner's Manualmedia.zzounds.com/media/MAC_HRS120-c347f52d4878dc77ffe...HIGH RESOLUTION HRS120 HIGH RESOLUTION POWERED SUBWOOFER OWNER’S MANUAL

HIGH RESOLUTIONHIGH RESOLUTION

HRS120HIGH RESOLUTIONPOWERED SUBWOOFEROWNER’S MANUAL

120 VAC, 60 Hz,575 WATTS

POWER

ON

POLARITY

(N/A)

LFE GAIN

SUBSONIC FILTER

SUBSONIC FILTER

CROSSOVER CONTROLS

FILTER SELECT

FILTER BYPASS

STANDARD SETTINGS

NORMAL

80Hz

SUB SAT

INPUT SENSITIVITY

THX PM3 SETTINGS

POLARITY

LFE GAIN

CROSSOVER CONTROLS

FILTER SELECT

FILTER BYPASS

NORMAL

80Hz

SUB SAT

INPUT SENSITIVITY

"MACKIE" AND "FR SERIES"ARE REGISTEREDTRADEMARKS OF MACKIE DESIGNS INC.

RISK OF ELECTRIC SHOCKDO NOT OPEN

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.

CAUTIONCAUTION

HEATSINK SURFACE HOTAVOID CONTACT

CAUTION

AVIS: RISCQUE DE CHOC ÉLECTRIQUE — NE PAS OUVRIR

SERIAL NUMBER MANUFACTURING DATE

( 5.1)

LFE GAIN

S M

SLAVE/MASTERSLAVE

IN

INPUT/OUTPUTINPUT/OUTPUT

MASTEROUT

LEFTIN OUT

RIGHTIN OUT

FOOT SWITCH

*MAX OPEN CIRCUIT 24V*MAX CLOSED CIRCUIT 1A

OPEN - SUB ON, L/R BASS MANAGEDCLOSED - SUB DEFEAT, L/R FULL RANGE

REMOTE INDICATOR

SUBSONIC FILTER FLAT15Hz

OFF NORMAL

POLARITY

INPUT SENSITIVITY

0°180°

FILTER SELECT

LFE GAIN

CROSSOVER

VARIABLE110Hz ELLIPTICALVARIABLE110Hz ELLIPTICAL

0dB +10dB

FILTER BYPASS FILTER INFULL RANGE

SUB

110Hz55Hz

80Hz

SAT

CROSSOVER

SUB

110Hz55Hz

80Hz

SAT

(MONO)

POWERPOWER SUB BYPASSED

CONCEIVED, DESIGNED, AND MANUFACTURED BYMACKIE DESIGNS INC. • WOODINVILLE • WA • USA

©2001 MACKIE DESIGNS INC. ALL RIGHTS RESERVEDMADE IN USA • PATENTS PENDING

INTERNAL AMPLIFICATION500W

™

OUTIN

L

R

L

R

*TO INSURE PRODUCT SAFETY, POWER SUPPLIES MEETING CLASS-2 INSULATIONREQUIREMENTS SHOULD ONLY BE USED WITH THIS CONNECTOR

SUBWOOFER BYPASS

REMOTE INDICATOR CIRCUIT CLOSED WHEN SUB BYPASSED

POLARITY & INPUT SENSITIVITY ACTIVE PROCESSED SIGNAL

CAUTION AVISRISK OF ELECTRIC SHOCK

DO NOT OPENRISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCKDO NOT REMOVE COVER (OR BACK)

NO USER-SERVICEABLE PARTS INSIDEREFER SERVICING TO QUALIFIED PERSONNEL

ATTENTION: POUR EVITER LES RISQUES DE CHOCELECTRIQUE, NE PAS ENLEVER LE COUVERCLE. AUCUN

ENTRETIEN DE PIECES INTERIEURES PAR L'USAGER. CONFIERL'ENTRETIEN AU PERSONNEL QUALIFIE.

AVIS: POUR EVITER LES RISQUES D'INCENDIE OUD'ELECTROCUTION, N'EXPOSEZ PAS CET ARTICLE

A LA PLUIE OU A L'HUMIDITE

The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated"dangerous voltage" within the product's enclosure, that may be of sufficient magnitude to constitute a risk of electric shock to persons. Le symbole éclair avec point de flèche à l'intérieur d'un triangle équilatéral est utilisé pour alerter l'utilisateur de la présence à l'intérieur du coffret de "voltage dangereux" non isolé d'ampleur suffisante pour constituer un risque d'éléctrocution.

The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. Le point d'exclamation à l'intérieur d'un triangle équilatéral est employé pour alerter les utilisateurs de la présence d'instructions importantes pour le fonctionnement et l'entretien (service) dans le livret d'instruction accompagnant l'appareil.

9. Power Cord Protection — Power supply cords should berouted so that they are not likely to be walked upon orpinched by items placed upon or against them, payingparticular attention to cords at plugs, convenience receptacles,and the point where they exit this Mackie product.

10. Object and Liquid Entry — Care should be taken so thatobjects do not fall into, and liquids are not spilled into thisMackie product.

11. Damage Requiring Service — This Mackie productshould be serviced only by qualified service personnel when:

A. The power-supply cord or the plug has beendamaged; or

B. Objects have fallen, or liquid has spilled intothis Mackie product; or

C. This Mackie product has been exposed to rain;or

D. This Mackie product does not appear to operatenormally or exhibits a marked change inperformance; or

E. This Mackie product has been dropped, or itschassis damaged.

12. Servicing — The user should not attempt to service thisMackie product beyond those means described in thisoperating manual. All other servicing should be referred to theMackie Service Department.

13. To prevent electric shock, do not use this polarized plugwith an extension cord, receptacle or other outlet unless theblades can be fully inserted to prevent blade exposure.

Pour prévenir les chocs électriques ne pas utiliser cette fichepolariseé avec un prolongateur, un prise de courant ou uneautre sortie de courant, sauf si les lames peuvent être inséréesà fond sans laisser aucune pariie à découvert.

14. Grounding or Polarization — Precautions should betaken so that the grounding or polarization means of thisMackie product is not defeated.

15. This apparatus does not exceed the Class A/Class B(whichever is applicable) limits for radio noise emissions fromdigital apparatus as set out in the radio interferenceregulations of the Canadian Department of Communications.

ATTENTION —Le présent appareil numérique n’émet pas debruits radioélectriques dépassant las limites applicables auxappareils numériques de class A/de class B (selon le cas)prescrites dans le règlement sur le brouillage radioélectriqueédicté par les ministere des communications du Canada.

WARNING — To reduce the risk of fire orelectric shock, do not expose this appliance to

rain or moisture.

SAFETY INSTRUCTIONS1. Read Instructions — All the safety and operationinstructions should be read before this Mackie product isoperated.

2. Retain Instructions — The safety and operatinginstructions should be kept for future reference.

3. Heed Warnings — All warnings on this Mackie product andin these operating instructions should be followed.

4. Follow Instructions — All operating and other instructionsshould be followed.

5. Water and Moisture — Do not place water, hot or chilleddrinks on top of this Mackie Product as it may cause a shockhazard. This Mackie product should not be used near water;for example, near a bathtub, washbowl, kitchen sink, laundrytub, in a wet basement, near a swimming pool, swamp, orsalivating St. Bernard dog, etc.

6. Ventilation — This Mackie product should be situated sothat its location or position does not interfere with its properventilation. For example, the Component should not besituated on a bed, sofa, rug, or similar surface that may blockany ventilation openings, or placed in a built-in installationsuch as a bookcase or cabinet that may impede the flow of airthrough ventilation openings.

7. Heat — This Mackie product should be situated awayfrom heat sources such as radiators or other devices whichproduce heat.

8. Power Sources — This Mackie product should be connectedto a power supply only of the type described in theseoperation instructions or as marked on this Mackie product.

• Please write the serial number for your HRS120 here forfuture reference (i.e., insurance claims, tech support, returnauthorization, etc.):

Purchased at:_______________________________ Date of Purchase:_________________

3

INTRODUCTION • The amplifier is designed to provide maximumacoustic output from the speaker, yet minimizethe danger of speaker damage due to overdriving.

• The connecting wire between the amplifieroutput and the low-frequency driver is kept to anabsolute minimum, so the damping factor of theamplifier isn’t compromised by the resistance oflong speaker cables.In short, all the complex interconnected compo-

nents in the system are designed to work in harmonywith each other to produce the best possible sound.

The Transducers...The subwoofer features a bottom-firing 12-inch

die-cast frame woofer and a 12-inch passive radiatorin the front.

The unique passive radiator design provides asmooth response down to 19Hz — an astoundingaccomplishment for a cabinet of this size! And sincethe radiator is complementing and adding to the out-put at the lowest frequencies, there is very littledistortion generated from the woofer because its conemovement stays well within its maximum excursion.

The Cabinet...The cabinet is made of black oak veneered MDF

wood. Extensive internal bracing further increasesthe strength and rigidity (stiffness) of the box.The box is packed with an adiabatic polyester-fillmaterial to absorb internal reflections and dampenstanding waves.

FR Series Power Amplifiers...What better way to power the subwoofer than

with our acclaimed FR Series “Fast Recovery” poweramplifiers. Our Fast Recovery design uses low nega-tive feedback, yet allows the amplifier to maintain lowdistortion and stability even when driven into clipping.

The low-frequency amplifier produces up to 400watts continuous (500 watts peak) before clipping.

Thank you for choosing Mackie Designs’HRS120 Powered Subwoofer. We realize thatmonitors are a critically important tool whetheryour application is studio recording, audio/videopost production, hi-fi, or home theater, and the useof a subwoofer not only improves low-frequencyaccuracy for stereo monitoring and playback, but isabsolutely necessary for surround sound applications.

The HRS120 complements our line of studioreference monitors and, like our HR824 and HR624,meets all THX™ requirements for mixing andmonitoring multi-channel programs.

In order to achieve a seamless integration betweenthe subwoofer and the main speakers in the system,speaker placement is very important. The charac-teristics of the room and the location of the speakers,including the subwoofer, relative to the walls andyour listening position can have a drastic effect onthe accuracy of the sound. We’ve provided a sectionon positioning the subwoofers, offering tips on how tofind the best placement for your particular application.

What is it? The Advantages...The HRS120 is a high-resolution powered

subwoofer employing an internal variable 4th-orderLinkwitz-Riley crossover system with a built-infront-firing mass-loaded passive radiator. Whew!There are many benefits to integrating an activecrossover, power amplifier, and drivers into a singlecabinet, and we’ve taken full advantage of thesebenefits in the design of the HRS120.• The crossover point is variable so that the high-

pass output can be programmed to match thefrequencies the main speakers are best able toreproduce.

Lend Me Your EarsExposure to extremely high noiselevels may cause permanent hearingloss. Individuals vary considerably insusceptibility to noise-induced hear-ing loss, but nearly everyone will losesome hearing if exposed to sufficiently

intense noise for a period of time. The U.S.Government’s Occupational Safety and Health Ad-ministration (OSHA) has specified the permissiblenoise level exposures shown in this chart.

According to OSHA, any exposure in excess ofthese permissible limits could result in some hear-ing loss. To ensure against potentially dangerousexposure to high sound-pressure levels, it is recom-mended that all persons exposed to equipmentcapable of producing these levels use hearing pro-tectors while this unit is in operation. Ear plugs orprotectors in the ear canals or over the ears mustbe worn when operating this amplification systemin order to prevent a permanent hearing loss ifexposure is in excess of the limits set forth here.

Duration Per Day Sound Level dBA, Typical In Hours Slow Response Example

8 90 Duo in small club6 924 95 Subway Train3 972 100 Very loud classical music

1.5 1021 105 Patrice screaming at Ron about deadlines

0.5 110 0.25 or less 115 Loudest parts at a rock concert

The HRS120can produce a

maximum SPL of117 dB @ 1m

®Part No. 0000544 Rev. A 11/01©2001 Mackie Designs Inc. All Rights Reserved.Printed in the U.S.A.

4

For stereo and surround sound applications:4. Set the POWER switch on the rear

panel to the ON position. The red POWER LED will turn on.

5. Turn on the power to the other componentsin the system.

6. Start your signal source (tape deck, CD, DAW,or whatever), but leave the master volumecontrol on your mixer or preamp down.

7. Adjust the master volume on your mixer orpreamp to a comfortably loud listeninglevel.

8. Slowly turn up the INPUT SENSITIVITY control on the back of the HRS120 to itsfully clockwise position (NORMAL), or untilyou achieve a balance between thesubwoofer and the other speakers in thesystem.

9. Enjoy the authoritative, commanding lowsof the HRS120.

Then read the rest of this manual...especially the following (see page 6):

QUICK START

ContentsSAFETY INSTRUCTIONS ............................ 2INTRODUCTION ....................................... 3QUICK START .......................................... 4PLACEMENT ............................................ 6REAR PANEL DESCRIPTION ...................... 8

POWER .............................................. 8 SUB BYPASSED ................................... 8 SUBSONIC FILTER ................................ 8 FILTER BYPASSED ............................... 8 FILTER SELECT ..................................... 8 LFE GAIN ............................................ 8 INPUT SENSITIVITY ............................. 8 POLARITY ........................................... 9 LEFT AND RIGHT INPUTS ..................... 9 LEFT AND RIGHT OUTPUTS .................. 9 CROSSOVER ....................................... 9 MASTER OUT/SLAVE IN .................... 10 SUBWOOFER BYPASS FOOTSWITCH .. 10 REMOTE INDICATOR ......................... 10 POWER ............................................ 11 MAINS INPUT ................................... 11

HOOKUP EXAMPLE ................................ 11PROTECTION CIRCUITS .......................... 12CONNECTIONS....................................... 12SERVICE INFO ....................................... 13TECHNICAL INFORMATION ..................... 15COLOPHON ........................................... 19

We realize that you can’twait to hook up your newMackie Designs HRS120High Resolution PoweredSubwoofer and try it out.

Nevertheless, please take the time to read thispage NOW, and the rest can wait until you’regood and ready.

The HRS120 has its own built-in power am-plifier. You should turn the INPUT SENSITIVITY

control on the back of the cabinet down(fully counterclockwise) before turning on theHRS120 for the first time. Also be sure to setthe power switch on the rear panel off(down). This will prevent you from accidentallyconnecting a hot signal source to the subwooferand getting a rude surprise.

There are a number of other settings youcan make on the back of the HRS120, and youcan read about them later on in this manual soyou really know what they do. For now, justleave all the switches out, and the CROSS-OVER controls set to the center position (80Hz).

For stereo applications:1. Connect the left and right line-level signal

from your mixer, preamp, or other signalsource to the LEFT and RIGHT IN jackson the HRS120 (XLR or RCA).

2. Connect the LEFT and RIGHT OUT jacks on the HRS120 (XLR or RCA) to theinputs of the left and right main poweredspeakers (or to the inputs of the amplifierspowering the left and right main speakers).

3. Connect the supplied AC power cord to theIEC socket on the back of thesubwoofer. Plug the other end into an ACoutlet properly configured with the correctvoltage for your particular model.

For surround sound applications:1. Connect the LFE (Low-Frequency Effects)

or subwoofer line-level signal from yourmixer, preamp, or other signal source to theLEFT (MONO) IN jack on the HRS120(XLR or RCA).

2. Set the FILTER BYPASS switch to theFULL RANGE position (pushed in).

3. Connect the supplied AC power cord to theIEC socket on the back of thesubwoofer. Plug the other end into an ACoutlet properly configured with the correctvoltage for your particular model.

5

S M

SLAVE/MASTERSLAVE

IN


MASTEROUT

LEFTIN OUT

RIGHTIN OUT

FOOT SWITCH



REMOTE INDICATOR


OFF NORMAL

POLARITY

INPUT SENSITIVITY

0°180°

FILTER SELECT

LFE GAIN

CROSSOVER


0dB +10dB


SUB

110Hz55Hz

80Hz

SAT

CROSSOVER

SUB

110Hz55Hz

80Hz

SAT

(MONO)


OUTIN

L

R

L

R


SUBWOOFER BYPASS




POWER

ON



CAUTION

POLARITY

(N/A)

LFE GAIN

SUBSONIC FILTER

CROSSOVER CONTROLS

FILTER SELECT

FILTER BYPASS

NORMAL

80Hz

SUB SAT

INPUT SENSITIVITY

THX PM3 SETTINGS

6

Corner or Center PlacementPlacing the subwoofer in a corner (corner

loading) excites the most room modes in theroom, which tends to smooth the individualpeaks and dips caused by each standing wave.Moving the subwoofer outward from the corneralong the wall results in fewer standing waves,but may result in noticeable peaks at certainfrequencies.

Some people prefer to place the subwooferbetween the left and right main speakers, sothat all the sound is coming from the sameplane. Some prefer to use two subwoofers andplace one with the left speaker and the otherwith the right speaker. The Master Out/SlaveIn connections on the HRS120 allow you to dothis quite easily.

Another benefit of corner placement is in-creased efficiency and lower distortion. Theenergy that is reflected off the walls reinforcesthe direct sound, putting less of a demand onthe power amplifier to reach higher soundpressure levels.

It is important that the corner has goodstructural strength, or the low-frequency en-ergy can cause rattling and other distractingvibrations.

Experiment with the orientation of thesubwoofer. The driver in the HRS120 facesdownward toward the floor while the passiveradiator faces out the front. In some cases, thesubwoofer may sound better with the passiveradiator facing toward the wall. It may be help-ful to play steady-state tones or pink noisewhile a partner moves the subwoofer (perhapson a small wheeled cart), to make it easier tohear the differences in the sound as the changesin placement and orientation are made.

Principle of ReciprocityOne trick that has been used successfully to

find the best location for a subwoofer is placingthe subwoofer in your listening position. Theprinciple of reciprocity says that you can findthe best location for the subwoofer by switchingplaces between the listening position and thesubwoofer position. It is important that the cabi-net be raised off the ground and at the same levelas your ears. If that’s not possible, at least put thesubwoofer in the same location as your listeningposition to achieve a close approximation.

PLACEMENTAN IMPORTANT NOTEON HRS120 BASSRESPONSE AND YOURCONTROL ROOM ORLISTENING ROOM

You’ve heard it before. “Low-frequencies arenon-directional, so it doesn’t matter where youplace the subwoofer.” Although it is true that fre-quencies below about 100Hz are non-directional,it is also true that a lot of factors can conspire tothwart the HRS120’s extended low frequency —including room shape, room volume, andacoustical treatment.

This is not a cop-out or an apology. It’s plainold physics in action. Here are some tips to helpyou find the best placement for your HRS120and optimize the low-frequency response inyour particular room. Consider the following:

Room acoustics and bass-handling abilityNobody likes to buy a subwoofer and a new

set of speakers and then be told that theyshould spend extra bucks on bass traps or a re-modeling job. But the simple fact is, “standard”rooms, i.e. rectangular rooms in conventionalbusiness or residential structures, are rarely ifever conducive to optimal low bass reproduc-tion without some modifications.

However, understanding what can causedegradation of the low-frequency response ina room can help in choosing a location that canminimize the problems associated with poorbass response—most notably interferenceand resonance.

Interference is caused when the reflectedwave from the surrounding walls arrive out-of-phase with the direct sound. This can weakenor even cancel the sound. Keeping the distancebetween the subwoofer driver and any adjacentwalls no longer than 1/8 of a wavelength (20 in.or 51 cm at 80Hz) can minimize interference.

Room resonance is caused by the reinforce-ment of certain frequencies between 20Hz and200Hz, which creates “standing waves” or roommodes. These resonant frequencies are deter-mined by the dimensions of the room. The bassresponse is sharply boosted for a narrow bandnear resonance, and then appears to be attenu-ated between resonances.

7

Play music with a good strong bass line andcrawl on the floor on your hands and knees untilyou find a spot where the bass sounds the best,with a smooth, tight response. Your ears needto be at the same height that the subwoofer’sdriver will be when it is sitting on the floor. Ifyou have access to a real-time analyzer (RTA),play pink noise over the system and use theRTA to find a location that exhibits the flatestbass response. Once you’ve found the placewhere the bass sounds the best, put thesubwoofer there and it should sound just asgood from your listening position.

Polarity The setting of the polarity switch can affect

how the low frequencies sound in relation to themain speakers. Listen to bass-heavy music withthe polarity switch in and out. In one positionthe low frequencies should sound full, while inthe other position they may sound hollow andthin. Choose the position that yields the fullestlow-frequency sound.

Feel free to experiment.In many respects, every room is unique in

terms of its acoustics. Even after you’ve placedyour subwoofer where you think it’ll soundbest, try moving it around. You might be pleas-antly surprised.

Additional Tidbits of Wisdom• Avoid using EQ to compensate for dips in

the frequency response caused by roommodes. It is better to place the subwoofer ina position where dips are minimized anduse the EQ to smooth out any peaks.

• Provide at least six inches clearancearound the heatsink to allow air to get at it.

• Provide at least three feet clearance from aTV, computer monitor, or any form ofmagnetic media (video and audio recordingtapes, computer disks, etc.), to prevent theHR120’s powerful magnet from distorting thevideo screen or erasing the magnetic media.

• When you shut down your equipment, turnoff the HRS120 powered subwoofer first(and any other powered speakers in thesystem) to prevent thumps and othernoises generated by any upstream equip-ment from coming out the speakers. Whenpowering up, turn on the powered speakersand subwoofer last.

• Save the shipping box! You may need itsomeday, and you don’t want to have to payfor another one.

• Save your sales receipt in a safe place.• Also record the HRS120 serial number in the

space provided on the inside front cover,along with where and when you bought it.

A Few Words About THX™ pm3™Certification

Nearly two decades ago, George Lucasturned a passion for great sound into theworld’s most accepted and trusted solution forachieving it. The standard was named THX(for Tomlinson Holman, who developed theTHX Sound System when he was the researchand technical director at Lucasfilm Ltd.™ inthe early 80s), and today, with hundreds ofthousands of home theater customers andmore than 3000 THX Certified movie theatersenjoying its benefits, the THX name has be-come nothing short of legendary. Simply put:when it comes to premium sound, no othername so closely defines ‘quality’ for millions ofmovie-goers and home theater enthusiasts alike.

Today, a new landscape is emerging. A land-scape comprised of hundreds of small,professional multi-channel facilities, whoseneed for differentiation, expert technical andmarketing support, and a true, multi-channelstandard is becoming a competitive fact of life.Again, THX has a singular solution and thistime it’s called THX pm3 Certification.

All facilities involved with mixing and/or moni-toring of multi-channel material should have theoption to use pm3. THX pm3 Certification is idealfor DVD mastering, sweetening, and mixing; andis also perfect for facilities doing work in broad-cast, music, or multi-media applications.

HRS120 THX pm3 Certification

Anyone seeking THX Certification for theirstudio, or striving to maintain THX standards,can use the HRS120s and rest assured thattheir facility is in full compliance.

8

REAR PANEL DESCRIPTION FILTER SELECT

FILTER SELECT VARIABLE110Hz ELLIPTICALVARIABLE110Hz ELLIPTICAL

This switch selects either the built-in 4th-order24 dB/octave Linkwitz-Riley variable crossoveror the 7th-order 42 dB/octave 110Hz ellipticallow-pass filter for the subwoofer.

Use the elliptical filter when mixing for sur-round sound applications with a LFE channel.This steep filter emulates the “brick-wall” low-pass filter used in AC-3 and DTS formats.

Use the variable crossover filter for normalplayback of stereo sound.

LFE GAIN

LFE GAIN 0dB +10dB

THX = 0dBFor Surround Sound Mixing: Push this

switch in to add 10 dB of gain to the subwoofersignal. This allows you to record the LFE chan-nel at –10 dB relative to the other channels, asspecified by AC-3 encoding standards. Notethat 10 dB of gain is added back when decod-ing the LFE channel.

For Playback: Push this switch in to add 10dB of gain to the subwoofer signal. This is use-ful for home theater applications where theLFE channel requires additional gain to bal-ance with the other channels in the surroundsound system.

INPUT SENSITIVITY

OFF NORMAL

INPUT SENSITIVITY

THX = NORMALThe HRS120 expects a line-level signal at its

input connectors.• The sensitivity is 89 dB SPL at one meter with

a 100mV (–17.8 dBu) input signal, with theINPUT SENSITIVITY control set to its NOR-MAL position (in other words, wide open).

• The HRS120 is designed to operate with anominal +4 dBu signal when the INPUTSENSITIVITY control is in the NORMALposition.

• Refer to the QUICK START section onpage 4 for the level-setting procedure.

This is where you connect your signal inputsand outputs to the subwoofer, and make adjust-ments to the crossover, filters, and inputsensitivity.

For THX applications, therear panel switches andcontrols should be set to theTHX positions as indicatedon the rear panel.

POWER LEDThe POWER LED lights when the power

switch is turned on and the subwoofer is oper-ating normally.

If there is no signal present for several min-utes, the HRS120 goes into bypass mode, thePOWER LED turns off, and the SUB BYPASSEDLED turns on. The instant a signal appears atits input, the HRS120 comes to life and thePOWER LED lights again.

SUB BYPASSED LEDWhen the SUBWOOFER BYPASS circuit is

activated by either the auto-off circuit or theFOOTSWITCH connection, the SUB BYPASSEDLED lights.

SUBSONIC FILTER

SUBSONIC FILTER FLAT 15Hz

THX = FLATPush this switch in to engage the 3rd-order

18 dB/octave Butterworth subsonic filter,which rolls off frequencies below 15Hz. Thiseliminates unwanted low-frequency energy sothat all the power from the HRS120 amplifier isdedicated to useful low frequencies.

FILTER BYPASS


THX = FULL RANGEThis switch bypasses the built-in low-pass

filters (variable and elliptical). Push this switchin when connecting an LFE or subwooferoutput signal from a mixer or preamp to theLEFT(MONO) and/or RIGHT inputs, to avoid“double-filtering” the low-frequency signal.

Note that the LEFT(MONO) and RIGHTOUTputs are still high-pass filtered and affectedby the CROSSOVER controls.

9

S M

SLAVE/MASTERSLAVE

IN


MASTEROUT

LEFTIN OUT

RIGHTIN OUT

FOOT SWITCH



REMOTE INDICATOR


OFF NORMAL

POLARITY

INPUT SENSITIVITY

0°180°

FILTER SELECT

LFE GAIN

CROSSOVER


0dB +10dB


SUB

110Hz55Hz

80Hz

SAT

CROSSOVER

SUB

110Hz55Hz

80Hz

SAT

(MONO)


OUTIN

L

R

L

R


SUBWOOFER BYPASS



POLARITY

POLARITY0°180°

THX = 0˚This switch reverses the polarity of the sig-

nal going to the subwoofer amplifier by 180º. Ithas no effect on the signal at the LEFT andRIGHT OUT or the MASTER OUT.

There is no right or wrong setting for thisswitch. Listen to the overall blend of thesubwoofer with the rest of the system, and selectthe switch position that gives you the best sound.

LEFT AND RIGHT INPUTSBalanced XLR female and unbalanced RCA

female connectors are provided for the left andright inputs. Connect the full-range line-levelsignal from the mixer or preamplifier to one ofthese input jacks.

The connectors are wired as follows (perthe AES/IEC standard):

XLR RCAHot (+) Pin 2 TipCold (–) Pin 3 —Shield (Ground) Pin 1 Shield

If connecting a single subwoofer or LFE out-put to the HRS120, use the LEFT (MONO)input with the FILTER BYPASS switch pushed in.

LEFT AND RIGHT OUTPUTSBalanced XLR male and unbalanced RCA fe-

male connectors are provided for the line-levelleft and right high-pass outputs. Connect theseto the inputs of the main speakers (if they arepowered speakers) or to the inputs of the am-plifier powering the main speakers.

The signal at the left and right outputs ispost-crossover. The low-pass output from thecrossover goes to the internal power amplifierin the HRS120, while the high-pass output goesto these output jacks.

CROSSOVER

CROSSOVER

SUB

110Hz55Hz

80Hz

SAT

THX = 80HzThis adjusts the crossover frequency for the

built-in 24 dB/octave Linkwitz-Riley variablecrossover. The crossover frequency can be ad-justed from 55Hz to 110Hz.

POLARITY

(N/A)

LFE GAIN

SUBSONIC FILTER

CROSSOVER CONTROLS

FILTER SELECT

FILTER BYPASS

NORMAL

80Hz

SUB SAT

INPUT SENSITIVITY

THX PM3 SETTINGS

10

Frequencies below the crossover frequencyare sent to the subwoofer, and frequenciesabove the crossover frequency are sent to theLEFT and RIGHT OUTputs, which are con-nected to the main/satellite speakers.

Set the crossover frequency to the lowestfrequency response rating of the main/satellitespeakers.

MASTER OUT/SLAVE INBalanced XLR and unbalanced RCA female

connectors are provided for the MASTER OUT/SLAVE INputs. Use these for daisy-chaining twoHRS120s by connecting the MASTER OUT jackfrom the first subwoofer to the SLAVE IN jackon the second subwoofer (see note below).

The SLAVE IN bypasses all filtering, but isaffected by the POLARITY and INPUT SENSI-TIVITY settings.

The MASTER OUT is post-filtering (variableand elliptical crossover, subsonic filter, andLFE gain) and pre- POLARITY and INPUTSENSITIVITY.

Note: You cannot daisy-chain more than oneadditional subwoofer using these connections.If SLAVE IN is used as an input, the MASTEROUT has no signal present. To connect moresubwoofers, connect the MASTER OUT fromthe first subwoofer to the LEFT (MONO) INputof the second subwoofer with the FILTER BY-PASS switch pushed in. Then connect theMASTER OUT of the second subwoofer to theLEFT (MONO) INput of the third subwoofer,and so on.

SUBWOOFER BYPASS FOOT SWITCHThis is a 1/4" jack for connecting a normally-

open footswitch. When the switch is closed, thesubwoofer is muted and the LEFT and RIGHTOUTputs pass the full-range signal to themain/satellite speakers.

This is useful for making a quick compari-son between the HRS120 enhanced andnon-enhanced low-frequency playback.

REMOTE INDICATORThis is a 1/4" jack for connecting a remote

indicator to indicate when the subwoofer is by-passed. An internal relay closes, shorting thetip and sleeve of the REMOTE INDICATORjack whenever the subwoofer is in bypassmode, either triggered manually with theFOOT SWITCH or by the auto-off function.

This can be used to turn on a remote, low-voltage lamp. Note that this jack does notprovide power. It accepts a maximum of 24 VDC

S M

SLAVE/MASTERSLAVE

INMASTER

OUT

LEFTIN OUT

RIGHTIN OUT

FOOT SWITCH



REMOTE INDICATOR

CROSSOVER

SUB

110Hz55Hz

80Hz

SAT

CROSSOVER

SUB

110Hz55Hz

80Hz

SAT

(MONO)

OUTIN

L

R

L

R

SUBWOOFER BYPASS



POWER

ON

across the tip/sleeve when the internal relay isopen, and a maximum 1 amp of current whenthe relay is closed.

CAUTION: There is an in-ternal 1A fuse to protect theREMOTE INDICATOR circuit.Exceeding 1A of current mayblow the internal 1A fuse.

11

HOOKUP EXAMPLE


POWER

ON

POLARITY

(N/A)

LFE GAIN

SUBSONIC FILTER

SUBSONIC FILTER

CROSSOVER CONTROLS

FILTER SELECT

FILTER BYPASS

STANDARD SETTINGS

NORMAL

80Hz

SUB SAT

INPUT SENSITIVITY

THX PM3 SETTINGS

POLARITY

LFE GAIN

CROSSOVER CONTROLS

FILTER SELECT

FILTER BYPASS

NORMAL

80Hz

SUB SAT

INPUT SENSITIVITY




CAUTIONCAUTION


CAUTION



( 5.1)

LFE GAIN

S M

SLAVE/MASTERSLAVE

IN


MASTEROUT

LEFTIN OUT

RIGHTIN OUT

FOOT SWITCH



REMOTE INDICATOR


OFF NORMAL

POLARITY

INPUT SENSITIVITY

0°180°

FILTER SELECT

LFE GAIN

CROSSOVER


0dB +10dB


SUB

110Hz55Hz

80Hz

SAT

CROSSOVER

SUB

110Hz55Hz

80Hz

SAT

(MONO)





™

OUTIN

L

R

L

R


SUBWOOFER BYPASS



From Mixer or Preamplifier

Left and Right Outputs

Left Main/Satellite Powered Speaker

Right Main/Satellite Powered Speaker

To Optional 2nd HRS120Slave Input

Surround SoundPreamplifier

OR

Mixing Console(1604-VLZ PRO shown)

POWERUse this switch to turn the HRS120 on and

off. The subwoofer is muted for about threeseconds after the HRS120 is turned on whilethe power supply and internal circuitry stabi-lize. The auto on/off circuit is disabled whenthe POWER switch is off.

MAINS INPUTConnect the power cord to this IEC socket, and

plug the other end into your AC outlet. Makesure the outlet is properly configured for thevoltage rating of your model.

12

PROTECTION CIRCUITS CONNECTIONSThere are several protection mechanisms

designed into the HRS120 to safeguard theloudspeaker and amplifier from inadvertentdamage.

Peak LimiterA peak limiter is located at the input to the

power amplifier section. It monitors both theamplifier output signal and the power supplyvoltages to guard against clipping and over-loading the amplifier. This allows for loud andpunchy bass performance without distortion,ensuring long-term reliability.

Thermal ProtectAll amplifiers produce heat. The HRS120 is

designed to be efficient both electrically andthermally.• If for some reason the heatsink or power

transformer gets too hot, a thermal switchactivates, placing the HRS120 into Standbymode.

• Should this happen, make sure that airflowto the rear of the cabinet is not restricted.

• When the heatsink or power transformercools down to a safe temperature, the switchresets and normal operation resumes.

Note: The POWER LED remains lit if the ther-mal protection circuit is activated.

Input and Output Signal WiringYou should use high-quality, shielded cable

to connect the signal source to the LEFT andRIGHT IN and OUT jacks on the HRS120.• Foil shielded cables, such as Belden 8451,

8761, or 9501 are commonly used for studiowiring.

• Microphone cables work well.• The better the shield, the better the

immunity from externally induced noise(like EMI and RFI). Route the cable awayfrom AC power cords and outlets. These arecommon sources for hum in an audiosignal. Wall warts and line lumps areespecially insidious hum inducers!You can purchase quality cables from yourMackie dealer.

• In certain home theater applications, itmay be necessary to connect the speakeroutputs from a stereo receiver to the inputsof the HRS120s, if the receiver doesn’t havepreamp outputs or other line-level outputconnections.

CAUTION: Do not attemptto connect a speaker outputdirectly to the input of theHRS120! Speaker levels aremuch higher than line

levels and can damage the input circuitryin the HRS120.You can, however, insert a speaker-level toline-level signal attenuator between thereceiver’s speaker output and the HRS120’sinput. Your Mackie dealer may be able tohelp you find one, or you can build yourown. Contact our tech support departmentfor more information.

13

SERVICE INFOBad Sound• Is the input connector plugged completely

into the jack?• Is it loud and distorted? Reduce the signal

level at the mixer.• If possible, listen to the signal source with

headphones plugged into the preamp stage.If it sounds bad there, it’s not the subwoofer.

• Too much bass or not enough bass? Movearound the room and see if the bassresponse changes. It’s possible yourlistening position coincides with a roommode where the low frequencies eitherbecome exaggerated or nulled. If so, trymoving the subwoofer to a differentposition, or moving your listening position.

• If the signal source is an LFE or subwooferoutput from a home theater preamplier,make sure the signal level for the low-frequency output is turned up in thepreamp. If you have connected the low-frequency signal to the LEFT (and RIGHT)INput, make sure the FILTER BYPASSEDswitch is pushed in.

Noise/Hum/Buzz• Check the signal cable between the mixer/

preamp and the subwoofer. Make sure allconnections are secure. These problemsusually produce crackling noises, hum, or buzz.

• If connecting an unbalanced output to theHRS120 balanced input, make sure theshield is connected to both pins 1 and 3 onthe XLR.

• If a CATV cable is connected to the system,try disconnecting it. If the hum goes away,call your cable carrier to check for propergrounding of the cable.

• Make sure the signal cable is not routednear AC cables, power transformers, orother EMI sources (including wall wartsand line lumps!). These sources usuallyproduce hum.

• Is there a light dimmer or other triac-based(SCR) device on the same AC circuit as themonitor? Dimmers cause buzzing noises.Use an AC line filter or plug the subwooferinto a different AC circuit.

• If possible, listen to the signal source withheadphones plugged in. If it sounds noisythere, it’s not the subwoofer.

Details concerning Warranty Service arespelled out on the Warranty Card included withyour subwoofer (if it’s missing, let us know andwe’ll rush one to you).

If you think your subwoofer has a problem,please do everything you can to confirm it beforecalling for service, including reading throughthe following Troubleshooting section. Doingso might save you from deprivation of yourmonitor and the associated suffering.

Of all Mackie products returned for service(which is hardly any at all), roughly 50% arecoded “CND” — Could Not Duplicate, whichusually means the problem lay somewhere elsein the system. These may sound obvious to you,but here are some things you can check:

Troubleshooting

No Power• Our favorite question: Is it plugged in?• Make sure the power cord is securely

seated in the IEC socket and pluggedall the way into the AC outlet.

• Make sure the AC outlet is live (check witha tester or lamp).

• Is the POWER switch on the rear panelin the ON position?

• Is the POWER LED or BYPASSED LED on the rear panel illuminated? If not,make sure the AC outlet is live. If so, referto “No Sound” below.

• If the POWER LED or BYPASSED LEDis not illuminated, and you are certain thatthe AC outlet is live, it will be necessary tohave the HRS120 serviced. There are nouser-serviceable parts inside. Refer to“Repair” at the end of this section to findout how to proceed.

No Sound• Is the POWER LED or BYPASSED

LED on the rear panel illuminated? If not,refer to “No Power” above.

• Is the INPUT SENSITIVITY controlturned up?

• Is the signal source turned up? Make surethe signal level from the mixing console (orwhatever device immediately precedes thesubwoofer) is high enough to produce sound.

14

RepairService for the U.S. versions of the HRS120

is available only from our factory service centerlocated in sunny Woodinville, Washington. Ser-vice outside the United States can be obtainedthrough local dealers or distributors.

If your HRS120 needs service, follow theseinstructions:1. Review the preceding troubleshooting

suggestions. Please.2. Call Tech Support at 1-800-258-6883, 7 am

to 5 pm PST, to explain the problem andrequest an RA (Return Authorization)number. Have your subwoofer’s serialnumber ready. You must have an RA numberbefore you can obtain service at the factory.

3. Set aside the power cord, owner’s manual,or anything else that you’ll ever want to seeagain. We are responsible for the return ofthe subwoofer only.

4. Pack the subwoofer in its original packingbox. This is very important. When you callfor the RA number, please let Tech Supportknow if you need new packaging. Mackie isnot responsible for any damage that occursdue to non-factory packaging.

5. Include a legible note stating your name,shipping address (no P.O. boxes), daytimephone number, RA number, and a detaileddescription of the problem, including howwe can duplicate it.

6. Write the RA number in BIG PRINT on topof the box.

7. Ship the subwoofer to us. We suggestinsurance for all forms of cartage. Ship tothis address:

Mackie DesignsSERVICE DEPARTMENT

16140 Wood-Red Road NE, Suite 5Woodinville, WA 98072

8. We’ll try to fix the subwoofer in three to fivebusiness days. Ask Tech Support for currentturnaround times when you call for your RAnumber. The product MUST be packaged inits original packing box and have the RMAnumber appear on the box. Once it isrepaired, we’ll ship it back the same way inwhich it was received. This paragraph doesnot necessarily apply to non-warranty service.

15

TECHNICAL INFORMATIONHRS120 Block Diagram

2 3

1RI

GH

TLI

NE IN

PUT

2 3

1LE

FT/M

ONO

LINE

INPU

T

CROS

SOVE

RFR

EQ

CROS

SOVE

RFR

EQ

FILT

ERSE

LECT

FILT

ERBY

PASS

55H

z-110

Hz

24 d

B/OC

T LI

NKW

ITZ-

RILE

YCE

NTER

POS

ITION

(80H

z) F

OR TH

X

110H

z42

dB/

OCT

ELLI

PTIC

ALLP

F (F

OR A

C-3/

DTS)

15H

z18

dB/

OCT

BUTT

ERW

ORTH

LPF

A B CTL

OUT

A B CTL

OUT

A B CTL

OUT

2 3

1LE

FT/M

ONO

LINE

OUT

PUT

2 3

1RI

GH

TLI

NE O

UTPU

T

55H

z-110

Hz

FILT

ER IN

SUBS

ONIC

FILT

ERLF

EG

AIN

15H

z

FLAT

(TH

X)

+10

dBAv

= 10

dB

0 dB

(TH

X)PO

LARI

TY

COM

PRES

SOR

ACE-

BASS

EQ

POW

ER

AMPL

IFIE

RIN

PUT

SENS

ITIV

ITY

(CW

= T

HX)

180º

0º (T

HX)

INOU

T

POW

ER S

UPPL

Y TR

ACKI

NG/

PEAK

POW

ER L

IMIT

ERFA

ST A

TTAC

K/SL

OW R

ELEA

SE

FULL

RAN

GE

(TH

X)

110H

z EL

LIPT

ICAL

+70V

+60V

–60V

–70V

SENS

ERE

SIST

OR

SUBW

OOFE

R 2 3

1M

ASTE

R O

UTPU

T

2 3

1SL

AVE

INPU

T

SUBW

OOFE

RBY

PASS

FOOT

SWITC

HNOTE

: WH

EN U

SED

AS A

SLA

VE,

THE

MAS

TER

OUTP

UT O

F TH

E FI

RST

SUB

DRIV

ES T

HIS

INPU

T.

"POL

ARIT

Y" A

ND "I

NPUT

SEN

SITI

VITY

"ON

LY A

RE A

CTIV

E ON

TH

IS IN

PUT.

OPEN

=

HPF

FRO

M C

ROSS

OVER

AT

LEFT

AND

RIG

HT

OUTP

UTS

SUBW

OOFE

R AC

TIVE

REM

OTE

INDI

CATO

R SW

ITCH

OPE

N

CLOS

ED =

FULL

-RAN

GE

SIG

NAL

FROM

INPU

TS A

T LE

FT A

ND R

IGH

T OU

TPUT

SSU

BWOO

FER

MUT

EDRE

MOT

E IN

DICA

TOR

SWITC

H C

LOSE

D

FUSE

SUBW

OOFE

RBY

PASS

REM

OTE

INDI

CATO

R

CLOS

ED W

HEN

SUB

WOO

FER

IS M

UTED

MAX

IMUM

VOLT

AGE

ALLO

WED

ACR

OSS

OPEN

CON

TACT

S =

24V

MAX

IMUM

CUR

RENT

ALL

OWED

TH

ROUG

HCL

OSED

SW

ITCH

= 1A

THE

POTE

NTIA

L ON

TH

ESE

TERM

INAL

S M

UST

BEFL

OATI

NG O

R RE

FERE

NCED

TO S

AFET

Y G

ROUN

D

SUB

BYPA

SSED

+5V

POW

ER

INPU

T SI

GNA

L DE

TECT

OR

WH

EN S

IGNA

L IS

PRE

SENT

TH

E OU

TPUT

IS A

CTIV

E.

OUTP

UT R

EMAI

NS A

CTIV

E FO

R SE

VERA

L M

INUT

ES A

FTER

SIG

NAL

IS R

EMOV

ED.

OUTP

UT IS

INAC

TIVE

WH

EN N

O SI

GNA

L IS

PRE

SENT

AND

BE

COM

ES A

CTIV

E AF

TER

SIG

NAL

RETU

RNS.

INOU

T

MAC

KIE

DESI

GNS

HRS

120

THX

BLOC

K DI

AGRA

M(#

11050

1DF)

16

Specifications

EnclosureMaterials:MDF construction with black oak veneer.Sides: 0.75“ (19mm) thickTop: 1.25“ (32mm) thickBottom: 1.00“ (25mm) thick

Internal Volume:2.15 cubic feet (60.88 liters)

TransducersLow-frequency driver:12-inch (305mm) die-cast frame, oversized ferrite mag-net structure, 4-inch (100mm) voice coil, and over45mm cone excursion

Passive Radiator:12-inch (305mm) mass-loaded

System SpecificationsCrossover Type:Linkwitz-Riley, 24 dB/octave, variable 55Hz to 110Hz

Input Type:Balanced differential XLR; Unbalanced RCA

Input Impedance:20kΩ, balanced bridging10kΩ, unbalanced

Input Sensitivity:89 dB SPL with a 100mV (–17.8 dBu) input signal

Maximum Input Level:+20 dBu

Signal Sense Threshold:–74 dBu (0.155 mV)

High-Cut Filter (LFE):7th order elliptical filter @ 110Hz

Subsonic Filter:–3 dB @ 15Hz, 3rd-order Butterworth High Pass filter

Input Protection:RFI and level protected

Driver Protection:Power supply tracking peak limiter

Thermal Protection:Heatsink and Power Transformer temperature, auto reset

Amplifier SectionRated power output (1% THD @ 100Hz):400 watts RMS into rated 8Ω load

Burst power output (100Hz sine with 10% duty cycle):500 watts

Distortion:THD (20Hz-300Hz, from 1W to –1 dBr=325W):< 0.02% (typically 0.0025%)

Signal-to-Noise Ratio:> 107 dB, referenced to 325 watts into 8 ohms

Acoustic Section:Free-Field Frequency Response:±1.5 dB, 20Hz to 150Hz

Lower cutoff frequency: –3 dB @ 19Hz

Maximum SPL: 117 dB SPL @ 1m

Residual noise: < 8 dBA SPL @ 1m

General:Power Consumption:280 watts with musical program, loud mix 30 watts quiescent (idle)

Dimensions:Height (including feet): 21" (533mm)Width: 18" (457mm)Depth (including grille): 18.8" (478mm)Overall Depth: 21.3" (541mm)

Weight: 94 lbs. (42.6kg)

Mackie Designs is always striving to improve our productsby incorporating new and improved materials, componentsand manufacturing methods. Therefore, we reserve the rightto change these specifications at any time without notice.

21"533mm

19"483mm

HRS120WEIGHT 94 lbs.

(42.6 kg)

18" (457mm)18.0" (457mm)18.8" (478mm)21.3" (541mm)

HIGH RESOLUTIONHIGH RESOLUTION

17

Graphs

-40

+10

-38

-36

-34

-32

-30

-28

-26

-24

-22

-20

-18

-16

-14

-12

-10

-8

-6

-4

-2

-0

+2

+4

+6

+8

10 20k20 50 100 200 500 1k 2k 5k 10k

Hz

dBr

55Hz

80Hz

110Hz

HRS120 Crossover Filter Response

-40

+10

-38

-36

-34

-32

-30

-28

-26

-24

-22

-20

-18

-16

-14

-12

-10

-8

-6

-4

-2

-0

+2

+4

+6

+8

dBr

20 20k50 100 200 500 1k 2k 5k 10k

Hz

HRS120 Elliptical Filter Response

-40

+10

-38

-36

-34

-32

-30

-28

-26

-24

-22

-20

-18

-16

-14

-12

-10

-8

-6

-4

-2

-0

+2

+4

+6

+8

10 50020 30 40 50 60 70 80 90 100 200 300 400

Hz

dBr

HRS120 Free-Field Frequency Response (THX pm3 setting)

18


POWER

ON

POLARITY

(N/A)

LFE GAIN

SUBSONIC FILTER

SUBSONIC FILTER

CROSSOVER CONTROLS

FILTER SELECT

FILTER BYPASS

STANDARD SETTINGS

NORMAL

80Hz

SUB SAT

INPUT SENSITIVITY

THX PM3 SETTINGS

POLARITY

LFE GAIN

CROSSOVER CONTROLS

FILTER SELECT

FILTER BYPASS

NORMAL

80Hz

SUB SAT

INPUT SENSITIVITY




CAUTIONCAUTION


CAUTION



( 5.1)

LFE GAIN

S M

SLAVE/MASTERSLAVE

IN


MASTEROUT

LEFTIN OUT

RIGHTIN OUT

FOOT SWITCH



REMOTE INDICATOR


OFF NORMAL

POLARITY

INPUT SENSITIVITY

0°180°

FILTER SELECT

LFE GAIN

CROSSOVER


0dB +10dB


SUB

110Hz55Hz

80Hz

SAT

CROSSOVER

SUB

110Hz55Hz

80Hz

SAT

(MONO)





™

OUTIN

L

R

L

R


SUBWOOFER BYPASS



19

COLOPHONThe text is a compilation based on input

from a number of sources including Cam Jones,Terry Wetherbee, Marcelo Vercelli, and KeithOlsen. Dave Franzwa produced this manualusing the following tools:

Initially written in Microsoft® Word 98 forthe Macintosh, the text was imported intoAdobe PageMaker® 6.5. Illustrations were pro-duced in Adobe Illustrator® 9.0. Most of thework was done on a Power Macintosh® G4 withMac OS 9.1 installed. This machine has aPowerPC G4 processor, 384MB of RAM, a 10GBinternal hard drive, an internal Matshita DVD-ROM drive, and an internal Iomega Zip™Drive for backup and transfer of files. AHewlett-Packard LaserJet 5000N with a duplextray installed (to save trees) was used to printout laser proofs. PDF files were created withAcrobat™ Distiller 4.0. A wind-driven openwindow provided much-needed relief as theproduction deadline approached. This entiremanual was written and produced while sittingin a comfy chair, which was actually morecomfy than the one used while producing theHR824 manual.

The following are trademarks or registeredtrademarks of Mackie Designs Inc.: The Mackielogo, HR Series, and the Running Man.

THX pm3 and Lucasfilm are trademarks ofLucasfilm Ltd. Used by permission.

This manual also contains names andmarks of other companies which belong tothose respective companies, and are herebyacknowledged.

©2001 Mackie Designs Inc.All Rights Reserved.Printed in the U.S.A.

®

®

®

®

™

Mackie Designs Inc.Mackie Designs Inc.

16220 Wood-Red Rd. NE • Woodinville, WA 98072 • USAUS & Canada: 800/898-3211

Europe, Asia, Central & South America: 425/487-4333Middle East & Africa: 31-20-654-4000Fax: 425/487-4337 • www.mackie.com

E-mail: [email protected]

Some of thepeople at our

factory who helpeddesign, bui ld, sel l ,and support your

product.

Some of thepeople at our

factory who helpeddesign, bui ld, sel l ,and support your

product.

Documents

HRS120 High Resolution Powered Subwoofer Owner's Manualmedia.zzounds.com/media/MAC_HRS120-c347f52d4878dc77ffe...HIGH RESOLUTION HRS120 HIGH RESOLUTION POWERED SUBWOOFER OWNER’S MANUAL