4
Revolutionary AAVA volume control Output stage with triple parallel push-pull power MOS-FETs produces quality power: 180 watts x 2 into 8 ohms Instrumentation amplifier principle for power amplifier input stage allows fully balanced signal transmission, complemented by MCS+ topology and current feedback amplification circuitry Logic-control relays for shortest signal paths Strong power supply with massive high-efficiency transformer and large filtering capacitors POWER IN button allows separate use of preamplifier and power amplifier sections Numeric indication of volume level

Photo shows an example for Analog Disc Input Board AD …accuphase.com/cat/e-470_e.pdfE-470 ⊖⊕⊖⊕ ⊖⊕⊖⊕ From PRE OUT LOW HIGH LOW HIGH RIGHT LEFT e S/N ratio (EIA) ((

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+- +-

Right loudspeakerLeft loudspeaker

+-+-

E-470

⊖ ⊖⊕ ⊕ ⊖ ⊖⊕ ⊕

!6 Preamplifier output connectors (Line)

From PRE OUT

LOW HIGHLOW HIGH

RIGHT LEFT

Pressing this buttonopens the sub panel.

AD-30DAC-40

!5 Recorder input/output connectors

!7 Power amplifier input connectors (Line)

!8 Left/right speaker output terminals (A/B, 2 sets)

!4 Line inputsTUNER / CD / LINE 1, 2, 3

!9 CD/LINE balanced input connectors Pin ② −, Pin ③ +*Can be changed with phase

selector button y

@3 AC power connector

@0 Preamplifier output connectors (Balanced)

@1 Phase selector switch for balanced poweramplifier inputs

@2 Power amplifier input connectors (Balanced)

Option Boardinstallation slots

q Input selector w Volume level display r Volume controle Function LED indicators

!3 Headphone jack

!2 Attenuator

!1 Loudness compensator 

t Power switchu Bass control

i Treble control

o Left/right balance control

y Function selector buttonsSpeakers ON/OFF A/B,MONO/STEREO switching,Preamplifier/power amplifier separation, Phase switchingTone controls ON/OFF

!0 Function selector buttonsRecorder ON/PLAY selectionDAC input switching, Meter ON/OFFDisplay mode switching, MC/MM switching

Sub panel

InputS/N ratio at rated output

109 dB102 dB125 dB

97 dB 97 dB101 dB

S/N ratio(EIA)

HIGH LEVEL INPUTBALANCED INPUT

POWER IN

Input shorted (A weighting)

InputFor rated output For 1 W output (EIA)

20 kΩ40 kΩ20 kΩ

Inputimpedance

HIGH LEVEL INPUTBALANCED INPUT

POWER IN

Sensitivity

190 mV190 mV1.51 V

14.2 mV14.2 mV113 mV

CD player

Analog output

Photo shows an example for option board installation.

+-+-LEFT RIGHT

Power amplifier (P-4200, A-36 or similar)

To INPUT

Connection Example For Bi-amping Setup

In a bi-amped setup, the speaker units for the LOW frequency range and HIGH frequency range are driven by separate amplifiers of equal gain, for even better sound quality.

* The speakers must have a built-in crossover network and separate inputs for LOW and HIGH range.

* The example shows a setup with an additional amplifier for the high frequency range

Front panel

Rear panel

Digital Input Board DAC-40

Analog Disc Input Board AD-30

Line Input Board LINE-10

Provides a set of general line level inputs.

Features a high sound quality, high-performance MDS++ D/A converter. The USB port allows connection to a computer via USB cable, for reproduction of high-resolution music library data with superior sound quality.

MM

Features a high-performance, high-gain phono equalizer for playback of analog records with outstanding sound quality. MC/MM switching is possible on the front panel

of the E-470. Internal DIP switches control MC input impedance

and subsonic filter on/off.

MC

Gain: 40 dBInput impedance: 47 kilohms

Gain: 66 dBInput impedance: 30/100/300 ohms (selectable)

COAXIAL: For 75-ohm coaxial cableSupported sampling frequency range: 32 kHz to 192 kHz, 24 bit

OPTICAL: For optical fiber cableSupported sampling frequency range: 32 kHz to 96 kHz, 24 bit

USB: For USB cable (Type B connector)Supported sampling frequency range: 32 kHz to 192 kHz, 24 bit

DAC-40 connection example

ComputerDAC-40

Digital component

Optical fiber cable(Up to 96 kHz/24 bit)

USB cable

Coaxial digital cable(Up to 192 kHz/24 bit)

Type B connectorUp to 192 kHz/24 bit( (

*For playback of material on a computer via the USB port, it is necessary to install software from the supplied USB Utility CD-ROM. (Not required with an Apple Macintosh computer.)

Option Boards

Two slots allowing easy insertion of option boards are provided on the rear panel.

Option boards can be used to implement high-quality reproduction of a digital music signal supplied directly to the amplifier, or high-quality reproduction of analog records.

It is also possible to install two identical boards.

Revolutionary AAVA volume control Output stage with triple parallel push-pull power MOS-FETs produces quality power: 180 watts x 2 into 8 ohms Instrumentation amplifier principle for power amplifier input stage allows fully balanced signal transmission, complemented by MCS+ topology and current feedback amplification circuitry Logic-control relays for shortest signal paths Strong power supply with massive high-efficiency transformer and large filtering capacitors POWER IN button allows separate use of preamplifier and power amplifier sections Numeric indication of volume level

Rated Continuous Average Output Power (both channels operating simultaneously, 20 - 20,000 Hz)

260 W/ch 4-ohm load 180 W/ch 8-ohm load

Total Harmonic Distortion (both channels operating simultaneously, 20 - 20,000 Hz) 0.05% 4 to 16 ohm load

Intermodulation Distortion 0.01%

Frequency Characteristics HIGH LEVEL INPUT At rated continuous average output: 20 - 20,000 Hz 0, -0.5 dB POWER IN At rated continuous average output: 20 - 20,000 Hz +0, -0.2 dB At 1 watt output: 3 - 150,000 Hz +0, -3.0 dB

Damping Factor 500 (with 8-ohm load, 50 Hz)

Input Sensitivity, Input Impedance

Output Voltage, Output Impedance PRE OUTPUT 1.51 V 50-ohm (at rated continuous average output) Gain HIGH LEVEL INPUT → PRE OUTPUT: 18 dB POWER IN → OUTPUT: 28 dB

Tone Controls Turnover frequency and adjustment range BASS: 300 Hz ±10 dB(50 Hz) TREBLE: 3 kHz ±10 dB(20 kHz) Loudness Compensation +6 dB(100 Hz) Attenuator -20 dB

S/N Ratio, Input-converted Noise

Power Meters Logarithmic peak level indication, shown in dB and %

Load Impedance 4 - 16 ohms

Stereo Headphones Suitable impedance: 8 ohms or higher

Power Requirements 120 V/230 V AC, 50/60 Hz (Voltage as indicated on rear panel)

Power Consumption 92 watts idle 420 watts in accordance with IEC 60065 611 watts for rated output into 8 ohms

Maximum Dimensions Width 465 mm ( 18.31”) Height 181 mm ( 7.13”) Depth 428 mm ( 16.85”)

Mass 24.5 kg (54.1 lbs) 31.0 kg (68.3 lbs) in shipping carton

E-470 Guaranteed Specifications[Guaranteed specifications are measured according to EIA standard RS-490.]

Digital (S/PDIF) output

5年間保証

Remarks This product is available in versions for 120/220/230 V AC. Make sure that the voltage shown on the rear panel matches the AC line voltage in your area. 230 V version has an Eco Mode that switches power off after 120 minutes of inactivity. The shape of the AC inlet and plug of the supplied power cord depends on the voltage rating and destination country.

Supplied accessories:

The specifications and appearance of this product are subject to change without notice.

K1405Y PRINTED IN JAPAN 850-2188-00(B1)

AC power cord Remote Commander RC-220

250

300

100

150

50

180W180W

8Ω 6Ω 4Ω

220W220W

260W260W

200W200W

250W250W

290W290W

Max. output powerMax. output power

200

Rated output powerRated output power

Out

put p

ower

(W)

Impedance (Ohms)

Biasstabilizer

NFBNETWORK

–INPUT

+ INPUT

OUTPUT

+ B1

– B1

– B2

+ B2

Q1

Q3

Q2

Q4Q8

Q6

Q7

Q5 Q9

Q17 Q19

Q18 Q20

Q21

Q22

Q23

Q24

Q25

Q26

Q13

Q11 Q15

Q10 Q14

Q12 Q16

Power amplifier stageMCS+ (Multiple Circuit Summing)

Signal input stage

NFBNETWORK

NFBNETWORK

Biasstabilizer

Biasstabilizer

Biasstabilizer

Biasstabilizer

REGULATOR

REGULATOR

AAVA configuration in E-470

2151

2161

231

CPU detects position of volume knoband operates current on/off switchesaccording to knob position

Conversion into current with 16 weighting stages (1/2 - 1/216)

Input music signal

5-MCS

V- I Converter VolumeBalanceAttenuator

CPU

I-V Converter

OUTPUTINPUT

21

221

BUFFER I - V

2 parallel circuits

Volume knob is turned and position is detected

LEVEL DISPLAY

10        100        1k        10k       100k

16

12

8

4

0

-4

-8

-12

-16

Frequency in Hz

Tone Control Characteristics

Res

pons

e in

dB

Res

pons

e in

dB

10        100        1k        10k        100k

18

16

14

12

10

8

6

4

2

0

-2

-4

-6

Frequency in Hz

LOUDNESS COMPENSATOR:ON

Signal sensing

Ground sensing

Speaker terminals

+ Signal

– GND

NFBNETWORK

NFBNETWORK

NFBNETWORK

+ INPUT

– INPUT

POWERAMP.

High frequencyrange

Low frequencyrange

Cut

Boo

st

adjustment range adjustment rangeBASS TREBLE

Reconversion of current into voltage

16 current switches (65,536 possible combinations)

Current values are added

Line and balanced input/output connectors

MOS-FET switchesPHASE selector button

POWER IN selector button

MC/MM selector button Sampling frequency display example

DAC input selector button and LED indicators

Large speaker terminals Power amplifier balanced input connectors

Preamplifier balanced output connectors

Toroidal power transformer Filtering capacitors

Output power characteristics

Circuit diagram of E-470 amplifier section (one channel)

Protection circuitryLoudness Compensator CharacteristicsBalanced Remote Sensing

Power MOS-FETs

Power amplifier assemblyPower amplifier assembly and output stage with triple parallel push-pull power MOS-FETs directly mounted to large heat sink.

AAVA volume control assembly with circuit impedance lowered to 1/2 and improved S/N ratio

Supplied remote commander RC-220

 Allows volume adjustment  and input source switching.

Large heat sink and power amplifier assemblyLarge heat sink and power amplifier assembly

Large heat sink and power amplifier assemblyLarge heat sink and power amplifier assembly

Logic-controlled relays and line input and output connectorsLogic-controlled relays and line input and output connectors

Protection circuit assemblyProtection circuit assembly

Massive high-efficiency power transformer

Option board slotsOption board slots

Large filtering capacitorsLarge filtering capacitors

AAVA volume control assemblyAAVA volume control assembly

The Excitement and Dynamism of High Power An integrated amplifier approaching the performance grade and functionality of separate components. Preamplifier section features latest version of AAVA volume control with even higher performance, along with instrumentation amplifier configuration for fully balanced signal paths. MCS+ topology and current feedback principle for amplification circuitry enable extremely low output impedance and realize a damping factor exceeding the 500 mark. Triple parallel push-pull arrangement of power MOS-FET devices together with massive power supply deliver 260 watts per channel into 4 ohms.

AAVA (Accuphase Analog Vari-gain Amplifier) Volume Control

Power MOS-FETs in triple parallel push-pull configuration deliver ample power: 180 watts/channel into 8 ohms or 260 watts/channel into 4 ohms.

Power amplifier stage features instrumentation amplifier configuration for balanced signal transmission. MCS+ topology and current feedback principle assure excellent phase characteristics in high range.

Strong power supply with massive high-efficiency toroidal transformer and large filtering capacitors (40,000 µF x 2). Individual phase setting supported for each input position. Versatile array of inputs with two balanced inputs to shut out external noise interference. POWER IN button along with preamplifier output and power amplifier input connectors allow independent use

of both sections. Both line level and balanced connectors are provided. Semiconductor (MOS-FET) switches used for speaker protection circuitry

prevent contact problems and ensure long-term reliability. Eliminating mechanical contacts from the signal path also further enhances sound quality.

Two option board installation slots on the rear panel provide further versatility. With the AD-30 or AD-20 board, MC/MM switching on the front panel is possible.

DAC input selector button allows input selection when using the Digital Input Board DAC-40 With USB Port. Display of the sampling frequency of the locked digital signal is also possible.

Logic-controlled relays for signal switching assure high sound quality and long-term reliability.

Dedicated headphone amplifier optimized for sound quality. Analog peak power meters with new type of LED lighting. Two sets of large-size speaker terminals accept also Y lugs. Balanced remote sensing technology provides

balanced feedback for both the signal and GND lines from near the speaker terminals to ensure low impedance and high damping factor.

Configuration with a total of 18 V-I converter amplifiers, paralleled for upper two units, reduces overall AAVA impedance to one half and results in lower noise. Input stage with five buffer amplifiers ensures powerful drive capability.

No more left/right tracking differences or crosstalk.

Amplifier display shows accurate gain as numeric indication.

High S/N ratio, low distortion, uniform frequency response and optimal sound quality maintained at any volume setting.

Attenuator and balance control also implemented by AAVA, eliminating additional circuitry.

Volume control resolution: Combination of V-I converter amplifiers gives 65,536 possible volume steps.

Inheriting outstanding technology from Accuphase's 40th anniversary commemorative models such as the preamplifier C-3800 and power amplifier A-200, the E-470 represents a full model change from the E-460. As the seventh generation entry in the E-400 series, it features advanced design technology and state-of-the-art circuitry, giving this high-class integrated amplifier an almost uncanny power to reproduce even the finest nuances in the music. Internally, the preamplifier and power amplifier sections are kept entirely separate, in order to allow each to develop their full potential, rivalling the performance and sonic excellence of

separate type components. With a simple flick of a switch, the POWER IN feature allows individual use of the two sections.At the heart of the preamplifier section is a further evolved AAVA type volume control, and the power amplifier block is configured with the latest instrumentation amplifier topology, enabling fully balanced signal transmission throughout. The MCS+ approach improves crucial performance parameters by employing multiple identical circuits in parallel, and current feedback provides optimum stability. As a result, the low impedance output stage achieves a damping factor of 500. MOS-FET switches are used in

place of relays for speaker protection, helping to ensure superb electrical characteristics and improve long-term reliability. Power MOS-FET devices arranged in triple parallel push-pull pairs for each channel greatly enhance the ability of the amplifier to drive low-impedance loads. Output operation is sustained by the massive power supply with a large toroidal power transformer and filtering capacitors with high capacity. With plenty of reserves,as demonstrated by the rating of 260 watts x 2 into 4 ohms or 180 watts x 2 into 8 ohms, the E-470 creates a sound stage ofbrilliant musicality and amazing realism.

250

300

100

150

50

180W180W

8Ω 6Ω 4Ω

220W220W

260W260W

200W200W

250W250W

290W290W

Max. output powerMax. output power

200

Rated output powerRated output power

Out

put p

ower

(W)

Impedance (Ohms)

Biasstabilizer

NFBNETWORK

–INPUT

+ INPUT

OUTPUT

+ B1

– B1

– B2

+ B2

Q1

Q3

Q2

Q4Q8

Q6

Q7

Q5 Q9

Q17 Q19

Q18 Q20

Q21

Q22

Q23

Q24

Q25

Q26

Q13

Q11 Q15

Q10 Q14

Q12 Q16

Power amplifier stageMCS+ (Multiple Circuit Summing)

Signal input stage

NFBNETWORK

NFBNETWORK

Biasstabilizer

Biasstabilizer

Biasstabilizer

Biasstabilizer

REGULATOR

REGULATOR

AAVA configuration in E-470

2151

2161

231

CPU detects position of volume knoband operates current on/off switchesaccording to knob position

Conversion into current with 16 weighting stages (1/2 - 1/216)

Input music signal

5-MCS

V- I Converter VolumeBalanceAttenuator

CPU

I-V Converter

OUTPUTINPUT

21

221

BUFFER I - V

2 parallel circuits

Volume knob is turned and position is detected

LEVEL DISPLAY

10        100        1k        10k       100k

16

12

8

4

0

-4

-8

-12

-16

Frequency in Hz

Tone Control Characteristics

Res

pons

e in

dB

Res

pons

e in

dB

10        100        1k        10k        100k

18

16

14

12

10

8

6

4

2

0

-2

-4

-6

Frequency in Hz

LOUDNESS COMPENSATOR:ON

Signal sensing

Ground sensing

Speaker terminals

+ Signal

– GND

NFBNETWORK

NFBNETWORK

NFBNETWORK

+ INPUT

– INPUT

POWERAMP.

High frequencyrange

Low frequencyrange

Cut

Boo

st

adjustment range adjustment rangeBASS TREBLE

Reconversion of current into voltage

16 current switches (65,536 possible combinations)

Current values are added

Line and balanced input/output connectors

MOS-FET switchesPHASE selector button

POWER IN selector button

MC/MM selector button Sampling frequency display example

DAC input selector button and LED indicators

Large speaker terminals Power amplifier balanced input connectors

Preamplifier balanced output connectors

Toroidal power transformer Filtering capacitors

Output power characteristics

Circuit diagram of E-470 amplifier section (one channel)

Protection circuitryLoudness Compensator CharacteristicsBalanced Remote Sensing

Power MOS-FETs

Power amplifier assemblyPower amplifier assembly and output stage with triple parallel push-pull power MOS-FETs directly mounted to large heat sink.

AAVA volume control assembly with circuit impedance lowered to 1/2 and improved S/N ratio

Supplied remote commander RC-220

 Allows volume adjustment  and input source switching.

Large heat sink and power amplifier assemblyLarge heat sink and power amplifier assembly

Large heat sink and power amplifier assemblyLarge heat sink and power amplifier assembly

Logic-controlled relays and line input and output connectorsLogic-controlled relays and line input and output connectors

Protection circuit assemblyProtection circuit assembly

Massive high-efficiency power transformer

Option board slotsOption board slots

Large filtering capacitorsLarge filtering capacitors

AAVA volume control assemblyAAVA volume control assembly

The Excitement and Dynamism of High Power An integrated amplifier approaching the performance grade and functionality of separate components. Preamplifier section features latest version of AAVA volume control with even higher performance, along with instrumentation amplifier configuration for fully balanced signal paths. MCS+ topology and current feedback principle for amplification circuitry enable extremely low output impedance and realize a damping factor exceeding the 500 mark. Triple parallel push-pull arrangement of power MOS-FET devices together with massive power supply deliver 260 watts per channel into 4 ohms.

AAVA (Accuphase Analog Vari-gain Amplifier) Volume Control

Power MOS-FETs in triple parallel push-pull configuration deliver ample power: 180 watts/channel into 8 ohms or 260 watts/channel into 4 ohms.

Power amplifier stage features instrumentation amplifier configuration for balanced signal transmission. MCS+ topology and current feedback principle assure excellent phase characteristics in high range.

Strong power supply with massive high-efficiency toroidal transformer and large filtering capacitors (40,000 µF x 2). Individual phase setting supported for each input position. Versatile array of inputs with two balanced inputs to shut out external noise interference. POWER IN button along with preamplifier output and power amplifier input connectors allow independent use

of both sections. Both line level and balanced connectors are provided. Semiconductor (MOS-FET) switches used for speaker protection circuitry

prevent contact problems and ensure long-term reliability. Eliminating mechanical contacts from the signal path also further enhances sound quality.

Two option board installation slots on the rear panel provide further versatility. With the AD-30 or AD-20 board, MC/MM switching on the front panel is possible.

DAC input selector button allows input selection when using the Digital Input Board DAC-40 With USB Port. Display of the sampling frequency of the locked digital signal is also possible.

Logic-controlled relays for signal switching assure high sound quality and long-term reliability.

Dedicated headphone amplifier optimized for sound quality. Analog peak power meters with new type of LED lighting. Two sets of large-size speaker terminals accept also Y lugs. Balanced remote sensing technology provides

balanced feedback for both the signal and GND lines from near the speaker terminals to ensure low impedance and high damping factor.

Configuration with a total of 18 V-I converter amplifiers, paralleled for upper two units, reduces overall AAVA impedance to one half and results in lower noise. Input stage with five buffer amplifiers ensures powerful drive capability.

No more left/right tracking differences or crosstalk.

Amplifier display shows accurate gain as numeric indication.

High S/N ratio, low distortion, uniform frequency response and optimal sound quality maintained at any volume setting.

Attenuator and balance control also implemented by AAVA, eliminating additional circuitry.

Volume control resolution: Combination of V-I converter amplifiers gives 65,536 possible volume steps.

Inheriting outstanding technology from Accuphase's 40th anniversary commemorative models such as the preamplifier C-3800 and power amplifier A-200, the E-470 represents a full model change from the E-460. As the seventh generation entry in the E-400 series, it features advanced design technology and state-of-the-art circuitry, giving this high-class integrated amplifier an almost uncanny power to reproduce even the finest nuances in the music. Internally, the preamplifier and power amplifier sections are kept entirely separate, in order to allow each to develop their full potential, rivalling the performance and sonic excellence of

separate type components. With a simple flick of a switch, the POWER IN feature allows individual use of the two sections.At the heart of the preamplifier section is a further evolved AAVA type volume control, and the power amplifier block is configured with the latest instrumentation amplifier topology, enabling fully balanced signal transmission throughout. The MCS+ approach improves crucial performance parameters by employing multiple identical circuits in parallel, and current feedback provides optimum stability. As a result, the low impedance output stage achieves a damping factor of 500. MOS-FET switches are used in

place of relays for speaker protection, helping to ensure superb electrical characteristics and improve long-term reliability. Power MOS-FET devices arranged in triple parallel push-pull pairs for each channel greatly enhance the ability of the amplifier to drive low-impedance loads. Output operation is sustained by the massive power supply with a large toroidal power transformer and filtering capacitors with high capacity. With plenty of reserves,as demonstrated by the rating of 260 watts x 2 into 4 ohms or 180 watts x 2 into 8 ohms, the E-470 creates a sound stage ofbrilliant musicality and amazing realism.

+- +-

Right loudspeakerLeft loudspeaker

+-+-

E-470

⊖ ⊖⊕ ⊕ ⊖ ⊖⊕ ⊕

!6 Preamplifier output connectors (Line)

From PRE OUT

LOW HIGHLOW HIGH

RIGHT LEFT

Pressing this buttonopens the sub panel.

AD-30DAC-40

!5 Recorder input/output connectors

!7 Power amplifier input connectors (Line)

!8 Left/right speaker output terminals (A/B, 2 sets)

!4 Line inputsTUNER / CD / LINE 1, 2, 3

!9 CD/LINE balanced input connectors Pin ② −, Pin ③ +*Can be changed with phase

selector button y

@3 AC power connector

@0 Preamplifier output connectors (Balanced)

@1 Phase selector switch for balanced poweramplifier inputs

@2 Power amplifier input connectors (Balanced)

Option Boardinstallation slots

q Input selector w Volume level display r Volume controle Function LED indicators

!3 Headphone jack

!2 Attenuator

!1 Loudness compensator 

t Power switchu Bass control

i Treble control

o Left/right balance control

y Function selector buttonsSpeakers ON/OFF A/B,MONO/STEREO switching,Preamplifier/power amplifier separation, Phase switchingTone controls ON/OFF

!0 Function selector buttonsRecorder ON/PLAY selectionDAC input switching, Meter ON/OFFDisplay mode switching, MC/MM switching

Sub panel

InputS/N ratio at rated output

109 dB102 dB125 dB

97 dB 97 dB101 dB

S/N ratio(EIA)

HIGH LEVEL INPUTBALANCED INPUT

POWER IN

Input shorted (A weighting)

InputFor rated output For 1 W output (EIA)

20 kΩ40 kΩ20 kΩ

Inputimpedance

HIGH LEVEL INPUTBALANCED INPUT

POWER IN

Sensitivity

190 mV190 mV1.51 V

14.2 mV14.2 mV113 mV

CD player

Analog output

Photo shows an example for option board installation.

+-+-LEFT RIGHT

Power amplifier (P-4200, A-36 or similar)

To INPUT

Connection Example For Bi-amping Setup

In a bi-amped setup, the speaker units for the LOW frequency range and HIGH frequency range are driven by separate amplifiers of equal gain, for even better sound quality.

* The speakers must have a built-in crossover network and separate inputs for LOW and HIGH range.

* The example shows a setup with an additional amplifier for the high frequency range

Front panel

Rear panel

Digital Input Board DAC-40

Analog Disc Input Board AD-30

Line Input Board LINE-10

Provides a set of general line level inputs.

Features a high sound quality, high-performance MDS++ D/A converter. The USB port allows connection to a computer via USB cable, for reproduction of high-resolution music library data with superior sound quality.

MM

Features a high-performance, high-gain phono equalizer for playback of analog records with outstanding sound quality. MC/MM switching is possible on the front panel

of the E-470. Internal DIP switches control MC input impedance

and subsonic filter on/off.

MC

Gain: 40 dBInput impedance: 47 kilohms

Gain: 66 dBInput impedance: 30/100/300 ohms (selectable)

COAXIAL: For 75-ohm coaxial cableSupported sampling frequency range: 32 kHz to 192 kHz, 24 bit

OPTICAL: For optical fiber cableSupported sampling frequency range: 32 kHz to 96 kHz, 24 bit

USB: For USB cable (Type B connector)Supported sampling frequency range: 32 kHz to 192 kHz, 24 bit

DAC-40 connection example

ComputerDAC-40

Digital component

Optical fiber cable(Up to 96 kHz/24 bit)

USB cable

Coaxial digital cable(Up to 192 kHz/24 bit)

Type B connectorUp to 192 kHz/24 bit( (

*For playback of material on a computer via the USB port, it is necessary to install software from the supplied USB Utility CD-ROM. (Not required with an Apple Macintosh computer.)

Option Boards

Two slots allowing easy insertion of option boards are provided on the rear panel.

Option boards can be used to implement high-quality reproduction of a digital music signal supplied directly to the amplifier, or high-quality reproduction of analog records.

It is also possible to install two identical boards.

Revolutionary AAVA volume control Output stage with triple parallel push-pull power MOS-FETs produces quality power: 180 watts x 2 into 8 ohms Instrumentation amplifier principle for power amplifier input stage allows fully balanced signal transmission, complemented by MCS+ topology and current feedback amplification circuitry Logic-control relays for shortest signal paths Strong power supply with massive high-efficiency transformer and large filtering capacitors POWER IN button allows separate use of preamplifier and power amplifier sections Numeric indication of volume level

Rated Continuous Average Output Power (both channels operating simultaneously, 20 - 20,000 Hz)

260 W/ch 4-ohm load 180 W/ch 8-ohm load

Total Harmonic Distortion (both channels operating simultaneously, 20 - 20,000 Hz) 0.05% 4 to 16 ohm load

Intermodulation Distortion 0.01%

Frequency Characteristics HIGH LEVEL INPUT At rated continuous average output: 20 - 20,000 Hz 0, -0.5 dB POWER IN At rated continuous average output: 20 - 20,000 Hz +0, -0.2 dB At 1 watt output: 3 - 150,000 Hz +0, -3.0 dB

Damping Factor 500 (with 8-ohm load, 50 Hz)

Input Sensitivity, Input Impedance

Output Voltage, Output Impedance PRE OUTPUT 1.51 V 50-ohm (at rated continuous average output) Gain HIGH LEVEL INPUT → PRE OUTPUT: 18 dB POWER IN → OUTPUT: 28 dB

Tone Controls Turnover frequency and adjustment range BASS: 300 Hz ±10 dB(50 Hz) TREBLE: 3 kHz ±10 dB(20 kHz) Loudness Compensation +6 dB(100 Hz) Attenuator -20 dB

S/N Ratio, Input-converted Noise

Power Meters Logarithmic peak level indication, shown in dB and %

Load Impedance 4 - 16 ohms

Stereo Headphones Suitable impedance: 8 ohms or higher

Power Requirements 120 V/230 V AC, 50/60 Hz (Voltage as indicated on rear panel)

Power Consumption 92 watts idle 420 watts in accordance with IEC 60065 611 watts for rated output into 8 ohms

Maximum Dimensions Width 465 mm ( 18.31”) Height 181 mm ( 7.13”) Depth 428 mm ( 16.85”)

Mass 24.5 kg (54.1 lbs) 31.0 kg (68.3 lbs) in shipping carton

E-470 Guaranteed Specifications[Guaranteed specifications are measured according to EIA standard RS-490.]

Digital (S/PDIF) output

5年間保証

Remarks This product is available in versions for 120/220/230 V AC. Make sure that the voltage shown on the rear panel matches the AC line voltage in your area. 230 V version has an Eco Mode that switches power off after 120 minutes of inactivity. The shape of the AC inlet and plug of the supplied power cord depends on the voltage rating and destination country.

Supplied accessories:

The specifications and appearance of this product are subject to change without notice.

K1405Y PRINTED IN JAPAN 850-2188-00(B1)

AC power cord Remote Commander RC-220