7/1/95

RELATED PRODUCTS

MORE INFORMATION

FEATURES

8•BUS MIDI AUTOMATIONMETER BRIDGES

FLOOR STANDS & SIDE CAR

8•BUS ARCHITECTS’ ANDENGINEERS’ SPECIFICATIONS

8•BUS COLORTABLOID BROCHURE

RECORDING AND PA CONSOLES

Since itsintroduction, MackieDesigns’ 8•Bus Series con-soles have proven thatexcellent sonic quality,practical features and ex-treme durability needn'tmandate a premium price.In hundreds of SR andrecording installations, the32•8, 24•8 and 16•8 deliverperformance previouslyonly found in consolescosting far more.

Instead of offeringdozens of mix-and-matchinput and output moduleoptions, we have put moreof what most users needinto a single console de-sign — enabling us to makethem in quantities whichcan bring costs down.

All three 8•Bus consolesand the 24•E expander offerextensive monitoring, 4-bandEQ, accurate, logarithmictaper faders and expansive,forgiving headroom. Equallyas important, they are builtto withstand the rigors of theenvironment and the casual,untrained user. 8•Bus con-soles have withstoodhundreds of thousands of

Each channel includesMackie’s famous micpreamp and a –10/+4switchable tape return

Eight assignable sub-masters and a L/R mixmaster

4-band EQ with trueparamatric (3-control)HI MID, LO CUT filter

Extensive routingcapabilities

Available in 16, 24 and32 channel versions

Optional Meter Bridgesavailable

Optional 24•E Expanderconsole available(for 24•8 and 32•8 only)

Rugged all-metalchassis

In-line monitoringeffectively doubles yourinput channels

miles oftouring,

topplingmonitors

during majorearthquakes, and everypossible liquid that ever gotnear a mixing board.

A complete systemThe 8•Bus console lineconsists of three in-lineconsoles, the 32x8x2 32•8,the 24x8x2 24•8 and the16x8x2 16•8.

The 24•8 and 32•8 areexpandable with Mackie's24•E Expander console. The24•E consists of 24 inputchannels and tape returns.It connects to the 32•8 or24•8 via a proprietary cable.Multiple 24•E expandersmay be daisy chained toprovide 128 or more totalinput channels. The 24•E'soutputs are pre-mixed inthe expander to reduce linenoise, thermal noise and tomaintain sonic quality atthe main console.

All three consoles andthe 24•E are shipped withMackie's rugged 220-watttriple-regulated powersupply. Meter bridges and

®

steel stands are available foreach console.

In addition, a “side car”stand is available. The SideCarhas 11 rack spaces for patchbays, external processors orconsole power supplies.

Mackie Designs also offersan external MIDI automationsystem consisting of a 34-channel VCA gain cell thatconnects to the 8•Bus con-sole via insert points, a faderpack and Macintosh™ auto-mation software.

Quality constructionthroughout

Mackie Designs mixers havea well-established reputationfor reliability. The road-rugged8•Bus console series is noexception.

The console chassis em-ploys a monocoque designwith seamless main frontand bottom panels. Besideseliminating the bulky framethat holds modules in aconventional console, the8•Bus's design resists twist-ing forces that can plaguemany consoles. The lesstwisting, the less potentialservice problems.

Channel strip circuitry islocated on 8-channel,fiberglass, double-sidedthrough-hole-platedcircuit boards. Thecircuit boards arefirmly attached

to the control surface sheetmetal via brass standoffs. Aspecial impact-absorbing knobdesign limits downward travelin the event of impact. Any fur-ther stress is spread across thecircuit board. The result is adesign that is virtually impervi-ous to the kind of damage thatis common with vertical chan-nel module circuit boards.During the 1994 Los Angelesearthquake, scores of Mackie8•Bus consoles received thefull force of falling monitors.Most survived with little morethan a few shattered knobs.

All rotary potentiometers aresealed to prevent liquid andparticle contamination. Internalinterconnects are gold-plated.All 1/4" input jack sleeves aresolid metal and create a firmelectrical contact with the mainchassis. In combination with aninternal shunting capacitor, thisconfiguration keeps RFI awayfrom the console's main circuitboards where it can add noise.XLR inputs use ferrite beads toachieve the same purpose.

Mic preamps that canhandle any input

The latest version of our verylow impedance preamplifierdesign provides high head-room with a verifiable E.I.N.spec of –129dBm and 10Hz to

300kHz bandwidth.

In-line FLIP reverses tape and mic/lineinputs between channel strip and Mix-B/Monitor section.

AUX SENDS 1-2 — PRE button selectspre-fader/post EQ or post- fader/post EQ.

AUX 3-4 / 5-6 — SHIFT changes 3-4 to5-6. SOURCE selects signal source of AUX3-4/5-6 from channel strip or channel’sMix B/Monitor send so you can build aneffects mix (pre or post-MIX-B level) toassign to phones during tracking.

True parametric, 3-control HI MID EQ thathas seasoned engineers swooning(quotes and raves on file…we’re notkidding). Ultra-wide 500-18k frequencysweep range; bandwidth can be adjustedfrom a very wide 3-octave width to a verynarrow 1/12-octave width. 15dB boost/cut.

LO MID EQ with ultra-wide 45Hz-3K sweep,15dB boost/cut.

±15dB shelving HI (12kHz) & LO (80Hz) EQ.

Multipurpose 18dB/oct. LO CUT filter@75Hz. Cleans up “mix mud,” cuts PArumble, creates a “neo-peaking” basscontrol when used with LO shelving boost.

Independent MIX-B (Monitor) section withpan, level & source. During mixdown, use asextra pre-fader stereo AUX send or doubleyour inputs.

Mix-B SPLIT EQ assigns HI & LO EQ to Mix-B.

MIX-B SOURCE selects from flip switch orchannel strip (pre-fader) for in-linemonitoring while recording or provides anextra stereo aux bus.

Constant power, buffered PAN pot for rock-solid panning.

Overload LED and Hyperactive –20dB SignalPresent LED

Selectable SOLO with CHANNEL METER-ING allows soloing in full stereo perspec-tive; displays soloed channel operatinglevel on master L/R meters so input trimscan be adjusted for optimum levels.

24•E 8•Bus Expander

7/1/95

All 8•Bus preamps useconjugate-pair, large-emitter-geometry transistors instead ofoff-the-shelf integrated circuits.At any gain setting, you get theadditional headroom and ultra-low noise previously only foundin far more expensive consoles.They can handle virtually anylive source — including scream-ing singers and loud drum kits— without overload.

The 8•Bus channel stripThe 8•Bus input channels'physical layout and features aredetailed on the next pages of thisproduct information sheet. Notethat, although each channel stripis relatively dense, all controls areeasily accessible. Knobs are largeenough — and sufficiently farapart — for even the largest fin-gers. Markings are legible, evenin low-light situations.

The four-band EQ section isplaced lower on the strip thanthe AUX sends for easy accessduring sessions. Within the EQsection, the high and low shelv-ing controls have been placednext to MIX-B, since their op-eration can be transferred tothe monitor section. A sharp Hipass filter is included for PAapplications.

Within the MIX-B monitorsection, is a Source switch. Inthe Channel (down) position,MIX-B is connected to thesame point in the circuit as thechannel fader input. It providesa second, independent stereomix from the main channelsignal that is handy for broad-cast feeds, 2-track recording,routing to another zone in achurch or club, or an extra setof aux sends.

8•Bus channel and bus fad-ers are a special design thatprovides true logarithmic taper.These smooth, 100mm fadersuse a complex network of addi-tive resistive elements thatcombine at various points

6 STEREO AUX RETURNS. All have 20dBgain, Solo and can be used in stereo &mono. 1 & 2 are pannable & bussable.

3 & 4 are assignable to the phones for“wet” monitoring.

6 AUX SENDS with Solo and Solo LED.

TALKBACK assigns to all submasters,main mix, AUX 1, AUX 2 or Phones 1 & 2.

SOLO level adjust and ultra-rude LED.

MONITOR section with separate ControlRoom & Studio levels. Source selection

between L/R mix, Mix-B, Tape & External.Can be switched to Mono.

TWO SEPARATE HEADPHONESECTIONS can be used totally indepen-

dent of each other. Each features sourceselection between Control Room & any

combination of AUX 3/4, AUX 5/6, Mix-Bor External source. Solo allows control

room to hear what musicians arehearing in their headphones.

MIX B/MONITOR section can be used asan independent stereo out for PA

monitor mix, 2-track recording,video/broadcast feed or assigned to L/R mix.

–40 to +10 bar graph LED DISPLAYS foreach sub-master & Solo/Main (with

main L/R +22dB CLIP LEDs).

EXPANSION CONSOLES let you addchannels in banks of 24 to either the

24•8 or 32•8. Expanders have their owninternal mix amps so the main board

only “sees” one extra channel perexpansion console.

Trick BUS SOLO switches send odd-numbered buses to the left speaker and

even-numbered buses to the rightspeaker — unless you’ve pressed the

respective MONO L&R button. When abus has been mono-ed, SOLO sends the

bus to both speakers.

L MIX/R MIX & MONO L& R buttons assignbuses to main L/R stereo bus.

Built-in talkback MIC.

7/1/95

The SideCarFor fixed installations,you can add theMackie SideCar.It is designedto fit oneitherside of an8•Bus consoleor Expander andprovides 11 standardrack spaces with in-tegral tapped railsfor outboard proces-sors, patch bays orpower supplies.

Horizontal circuitboards versusvertical circuit

modulesBy avoiding individual,vertical circuit modules,we increase parts densitywhich means fewer wir-ing harnesses and ribboncables, shorter signalpaths and less assemblytime. Yet our 8-channels-per-card circuit boardscan be repaired easilyand are far less prone todamage in the first place,thanks to a special knobdesign and mountingmethod that withstandsall but the most brutalimpacts.

along the faders' travel toachieve an absolutelyeven, predictable faderate, from the very top allthe way to the bottom(where you get absoluteattenuation, just like onmore expensive consoles).

The 8•Bus output sectionWe have provided excep-tional monitoring flexibilityby providing two separateheadphone sections. Eachlets you build a custom mixusing any combination ofMonitor, Mix-B, AUX 3 & 4,AUX 5 & 6 and External(cue/click track) inputs.

Control room and stu-dio/stage monitor levelsare controlled via individualstereo level controls. Selectany combination of L/RMix, Mix-B, 2-Tk. andExternal inputs.

An additional Talkbacksection can be routed to anycombination of AUX 1, AUX2, Tape/Submasters (L/Rmix) and Phones/Studio.

The 8•Bus power supplyOur 220-Watt Triple-Regu-lated Power Supply is

designed to withstand highenvironmental tempera-tures and direct sunlight. Itcan produce rated outputfrom as little as 100 volts(a serious considerationwhen running SR at theend of a long extensioncable). The power supplyhas sufficient output to runboth the console and ameter bridge. Compare itto what you get with otherconsoles in the same pricerange. You'll see one moreexample of just how “over-engineered” the 8•Busseries is.

The 8•Bus meter bridgeMB32, MB24 and MB16meter bridges provide12-segment LED laddersfor each input channeland quality, lighted VUmeters for master Left/Right output (the MB•EMeter bridge for the 24•EExpander console doesnot include VU meters).Input buttons allow you toglobally switch betweenTape Return input andChannel Strip Post Faderoutput. Each meter as-sembly attaches inminutes and can be tiltedas desired. The meterbridges also tilt down fullyto save road case depth.

All channels have Mackie’s renowned discrete, wide-bandwidth MIC PREAMP circuit for ultrahighheadroom & low noise. All mic inputs have RFI choking, ferrite beads and +48V phantom power(switchable in banks of 8 channels).

8•Bus SideCar(not included)

Three TAPE OUTPUT jacks perbus (total of 24). Balancedoutputs, switchable from+4/–10.

+4dBu balanced TAPE RETURNS,switchable to –10dBV in banksof 8 returns.

Balanced MIC, bal./unbal.LINE IN, MIC/LINE switch ,DIRECT OUT & CH. INSERT onevery channel.

Mackie Designs 8•Bus ConsoleBlock Diagram 6/95

GAI

N

HI

BUS 1 BUS 2BUS 3

BUS 4BUS 5BUS 6

BUS 7BUS 8

L-BUSR-BUS

L-SOLOR-SOLO

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AUX 4AUX 5

AUX 6L-MIX-B

R-MIX-B

L/R

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/4

27.17"29.17"

1.00"

1.00"

4.78

"0.

54"

28.7

4"

V. 1.5 6/9516x8x2 8-BUS MIXING CONSOLE

©1995 MACKIE DESIGNS INC.*exclusive

ofmeter bridge

16•8 console

WEIGHT*50 lbs.

6.00

"3.38

"

29.20"

MB16•8 Optional Meter Bridge

5.50

"

35.02"37.02"

1.00"

1.00"

4.78

"

6.00

"3.38

"

37.00"

0.54

"28

.74"

MB24•8 Optional Meter Bridge

24x8x2 8-BUS MIXING CONSOLE ©1995 MACKIE DESIGNS INC.

*exclusive of

meter bridge

24•8 console

WEIGHT*64 lbs.

V. 1.4 4/4/94

5.50

"

2.65"

28.58"

2.50

"

Note: add 3.75" to depth for power supply cable clearance

0.69"

4.25

"

6.00

" 9.00

"

4.78

"

25.24"

28.74"

2.70

"

5.50

"3.

67"

26.80"

28.40"

22.50"

29.00"

V. 1.0 4/4/94STAND FOR 24•8 & 32•8 CONSOLES

©1995 MACKIE DESIGNS INC.

StandWEIGHT44 lbs.

7/1/95

27.17"29.17"

1.00"

1.00"

4.78

"0.

54"

28.7

4"

V. 1.0 4/4/9424-CH. EXPANSION CONSOLE FOR 24•8 & 32•8

©1995 MACKIE DESIGNS INC.*exclusive

ofmeter bridge

24•E console

WEIGHT*50 lbs.

6.00

"3.20

"

29.15"

MB•E Optional Meter Bridge

5.50

"

43.82"45.82"

1.00"

1.00"

4.77

"0.

54"

28.7

4"

V. 1.4 4/4/9432x8x2 8-BUS MIXING CONSOLE

©1995 MACKIE DESIGNS INC.*exclusive

ofmeter bridge

32•8 console

WEIGHT*78 lbs.

6.00

"3.38

"

45.80"

MB32•8 Optional Meter Bridge

5.50

"

level up +20level up +15 level up +15

0 0 0 0 0 0 0

0 0 0 0 0 0 0 0

0 0 0 0 0 0 0

max out +22

max out +22

max out +22

+14 max in

-10 trim dn

MIC INPUT AUX RETURN CH. LEVEL MIX O/P LEVEL OUTPUT

OUTPUT

OUTPUT

MIX

MIX O/P LEVEL

-50 trim up

+22 max in

trim dn

-40 trim up

+22 max in

switch @+4

-12.3 @-10

LINE INPUT

TAPE INPUT

to point (B)

gain up +15fader up +10

(A) (B)pan center -3

gain dn -15(C)

INSERT EQ FADER PAN SUB INSERT

-6 -6

gain up +15 level up +15 level up +15

gain dn -15

SPLIT EQ CH. LEVEL

MIX B

1-8 from point (C)L/R from point (d)

-4to meters

METER FEED (+4 @ O/P = 0 @ METERS)

SUBMASTER or MAIN MIXCHANNELFADER CONTROL ROOM

(D)level up

fader up +10

L/R bal max out +28

max out +221-8 bal/unbal

L/R unbal

from point (A)

AUX SEND

3.50

"(2

rack

spa

ces)

19.00"

V. 1.2 4/4/94

220-WATT POWER SUPPLY FOR8•BUS CONSOLES & EXPANDER

©1995 MACKIE DESIGNS INC.

19.00"

10.10

"

220-W Power Supply

WEIGHT24 lbs.

SPECIFICATIONSCHANNEL STRIPMic InElectronically balanced;discrete input configurationNoise, Mic E.I.N. (20Hz–20kHz)–129.0 dBm, 150Ω source–136.0 dBV, input shortedMic Preamp Distortion0.001% 20Hz–20kHzMic Preamp Bandwidth10Hz to 300kHz ±3dBMic Gain Range+10dB to +50dBMic Max Input+14dBuLine InElectronically balancedLine in Gain RangeUnity to +40dBLine in Max Input+22dBuNoise (Ch. @ Unity Gain)–94dBuChannel Faderlog taper using 100mmprecision network designChannel Fader Rangeoff to Unity to +10dBAux Send Gain Rangeoff to Unity to +15dBMix B Gain Rangeoff to Unity to +15dBHi Mid EQfull parametric, ±15dB freq.sweep from 500Hz–18kHzbandwidth variable from1/12 octave to 3 octavesLo Mid EQsweep from 45Hz–3kHz±15dBHi Shelving EQ12kHz ±15dBLo Shelving EQ80Hz ±15dBLo Cut EQ (HPF)75Hz 18dB/octave(Tchebechev)Channel Direct OutMax Output +22dBuOutput Impedance120Ω (60Ω @ XLR out)

HI MID–2 oct. bandwidthboost/cut

20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

HI MID–3 oct. bandwidth boost/cut

20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

LO MID–boost/cut

20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

LO SHELF

20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

LO CUT (HI PASS)

HI MID–1/12 oct. bandwidthboost/cut

20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

Interaction of LO CUT withLO SHELF boost

20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

HI SHELF

LO MID–sweeps20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

HI MID–3 oct. sweeps20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

HI MID–2 oct. sweeps

20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

20Hz 100Hz 1kHz 10kHz 20kHz

–15

–10

–5

0

+5

+10

+15

HI MID–1/12 oct. sweeps

Tape ReturnsBal./unbal. 1/4” jacks,globally switchable from+4dBu to –10dBVCh. Insert Max In/Out+22dBuCh.-to-Ch. Crosstalk–85dBSUBMASTER SECTIONNoise–90dB re +4dBu 16 chs.assigned & set @ UnityGainSubmaster OutputMax Out+22dBuSubmaster InsertMax In/Out+22dBuSubmaster Faderlog taper using 100mmprecision network designFader Rangeoff to Unity to +10dBMAIN SECTIONWorking S/N ratio90 dBu (ref: +4 dBu), allchannels assigned, allfaders @ Unity Gain.Max Output+28dBu balanced XLR,+22dBu unbalanced 1/4"Aux Returns Gain Rangeoff to Unity to +20dBAux Sends Max Out+22dBuGENERALDistortionBetter than 0.01%, anyinput to any outputFrequency Response20Hz-40kHz ±1dB anyinput to any output;10Hz-120kHz ±3dBMax Gain mic in to bal.main out+76dBAC Power Consumption200 watts typical 300watts max (32•8 w/Meter Bridge)

MACKIE DESIGNS INC. • 16220 WOOD-RED RD. N.E.WOODINVILLE • WA • USA • PHONE TOLLFREE 800/258-6883FAX 425/487-4337 • OUTSIDE THE U.S., PHONE 425/487-4333

Mackie Designs Inc. is engaged in a continuous program ofproduct evaluation and improvement and reserves the right tochange product specifications at any time without notice.©1995 Mackie Designs Inc. All rights reserved. “Mackie.” is aregistered trademark of Mackie Designs Inc. Printed in USA.12022951.2

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