Class-APRECISION INTEGRATED STEREO AMPLIFIER● Integrated amplifier with fully balanced configuration extending from input to output● Balanced AAVA type volume control ● Power amplification stage configured as
instrumentation amplifier ● Six-fold parallel push-pull configuration of power MOS-FETs
driven in Class A ● Linear power progression of 50 watts into 8 ohms, 100 watts into 4ohms, and 200 watts into 2 ohms ● 300 W output into 1-ohm load (music signals) ● Highdamping factor of 1000 ● Strong power supply with massive high-efficiency toroidaltransformer and large filtering capacitors ● Protection circuitry using MOS-FET switches

Integrated Amplifier Is First Entry in New Flagship Model Series
The E-800 is positioned above the E-650 as the new flagship model in the integrated amplifier
lineup of Accuphase. The preamplifier section features the impeccable Balanced AAVA typevolume control, while the power amplifier section is configured as an instrumentation amplifier
using a six-fold parallel push-pull configuration of power MOS-FETs driven in pure Class A.
The resulting quality is on a par with high-class separate type amplifiers. Operating as a simple
and smart system, the E-800 realizes acoustic excellence that reaches to the very heart of the music.

Innovation ‒ The leading edge of technology■ Balanced AAVA type volume control
AAVA performs volume adjustment by making use of a combination of 16
current signals with different magnitude, thereby eliminating signal
degradation and impedance fluctuations and maintaining high S/N ratio
and low THD over the entire volume range. In the Balanced AAVA
implementation of the E-800, two AAVA circuits are driven in a fully balanced
configuration with a superior capability to eliminate external noise.

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

V- I Converter

16 current switches
216 = 65,536
possible combinations

How Balanced AAVA works

12122

I-V Converter
Reconversion of current into voltage

123＋

I-V

Current values
are added

1215

High Voltage
Current Feedback
Amplifier＋INPUT

BalancedInput■ Balanced AAVA type volume control assembly−INPUTLEVEL DISPLAY

1216＋OUTPUT

CPU detects position of volume・Volumeknob and operates current on / off CPU ・Balanceswitches according to knob position・Attenuator

BalancedOutput
Volume knob is turnedand position is detected

V- I Converter■ High-accuracy, high-rigidity volume sensor construction
The volume sensor
mechanism developedby Accuphase in-houseis built from a single
massive aluminum
block extruded andfinished with utmost
precision and complemented by othersubstantial materials,
to ensure a silky smooth
operation feel.

1
2

1
22

Current values
are added

123＋I-V Converter
Reconversion of current into voltage
1215
1216

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

16 current switches
216 = 65,536
possible combinations

Sound quality ‒ Simply aiming for the best
■ Formidable power amplification stage
The power amplification circuitry mounted directly on a large heat sink employs a six-foldparallel push-pull configuration of power MOS-FETs driven in Class A. Two identical units
arranged on the left and right sides of the chassis deliver impeccable power in a linear
progression for the two channels: 50 watts into 8 ohms, 100 watts into 4 ohms, and 200watts into 2 ohms. The amplifier can even supply 300 watts into 1 ohm (music signals).
■ High damping factor brings out the full musical potential of loudspeakers
Features such as Balanced Remote Sensing and MOS-FET switches
help to realize a damping factor of 1000. Superb motion control lets
every loudspeaker perform at its very best.

Power MOS-FETs■ Power supply circuitry designed for optimum stability
The strong power supply with massive high-efficiency toroidal transformer andtwo large 60,000 μF filtering capacitors ensures a stable current supply at all times.
360

350

Massive toroidal power transformer

Output power (W)

300

272

250

300

200

165150100200901005050Max. output power
Rated output power

Large filtering capacitors

8421Impedance (Ohms)

Output power characteristics

I-V

Power amplifier assembly− OUTPUT

Epoch-Making Fusion

of Skill and Technology

Ultra-Massive Pure Class-A Precision Integrated Amplifier
Combining cutting-edge technology with carefully selectedmaterials of superb quality, the E-800 exudes an aura of solidluxury, with a lavish champagne gold front panel that changes
its look depending on the viewing angle, and bar graph metersthat delicately reflect the rhythm of the music.

Advanced features■ Logic-control signal switching relays for shortest signal paths■ Five line level and three balanced inputs■ Line input and output connectors for a recorder■ Individual phase setting for each input■ Stereo signal can be switched to monophonic operation■ Left/right balance control also realized with Balanced AAVA
■ Convenient attenuator is useful for example when operating
an analog record player or taking a telephone call
■ Loudness compensator enhances low end
presence at low volume levels■ Tone controls using summing active filters■ Power amplification stage employs
instrumentation amplifier principle■ Current feedback amplification circuit topology
assures excellent phase characteristics in high range■ Speaker output protection circuit guards against
short-circuiting■ Protection circuitry using MOS-FET switches■ Two sets of large speaker terminals■ Preamplifier and power amplifier sections can beused separately■ Line level and balanced outputs of preamplifier
section also support bi-amping connection■ Line level and balanced inputs of power section
enable use as a power amplifier■ Dedicated headphone amplifier constructed withdiscrete components■ Two rear panel expansion slots allow use of option boards■ DAC input selector button for use with digital
input board (when DAC-40 / DAC-50 is installed)■ Sampling frequency display for digital input signal(when DAC-40 / DAC-50 is installed)■ High-sensitivity LED bar graph power meters with
30-point indication to -50 dB■ Supplied Remote Commander
RC-240Allows volume adjustment,
input source switching etc.

❶❷

❶ Speaker output selector❷ Bass control❸ Treble control❹ Tone control on / off button❺ Phase selector button

❸❹

❺

❽❾❻

❼

❿⓫

❻ Mono / stereo selector button❼ Loudness compensator on / off button❽ DAC input selector button❾ MC / MM selector button❿ Display mode selector button⓬⓭⓫ Balance control⓬ Preamplifier / power amplifier

separator switch⓭ Recorder selector

Line input and output connectors

Protection circuit assembly

MOS-FET switches

Balanced input connectors

Speaker terminals connected
directly to protection circuitry

Ultra-heavy-gauge
edgewise coilBi-amping for further enhanced soundOption Boards

In a bi-amped setup, the speaker units for the LOW frequency
range and the HIGH frequency range are driven by separate
amplifiers with equal gain, which enables playback with
Left speaker
Right speakereven higher sound quality.

Rear panel expansion slots allow use of
three types of option boards (DAC-50,AD-50, LINE-10). Up to two boards canbe inserted, according to requirements.

＊The speakers must have abuilt-in crossover networkand separate inputs forthe LOW and HIGH range.
＊The example shows asetup with an additional
power amplifier for the low
frequency range.
RIGHT

E-800＋ ○− ○− ○＋○LOW− ○＋ ○− ○＋○HIGH

DAC-50LOW

AD-50

Photo shows an option board installation example.

LEFT

Analog Disc
Input Board

AD-9/AD-10/
AD-20/AD-30

Line Input
Board

LINE-9From PRE OUT

LEFT

RIGHT

Input
Impedance

USB cable

To INPUTPower amplifierPC

DAC-50* For information on controls
in the sub panel area, see
the preceding page.

Line Input Board LINE-10

High-performance DAC with two
AK4490EQ chips from Asahi Kasei
Microdevices driven in parallel.
Input

Signal Sampling frequencies Number of bits
2.8 MHz
5.6 MHz11.2 MHz
DSD
1-bit
USB
11.2 MHz:ASIO only
PCM 32 to 384 kHz 32-bit
OPTICAL PCM 32 to 96 kHz
24-bitCOAXIAL PCM 32 to 192 kHz 24-bit

Provides anadditional
set of unbalanced line
level inputs.

LINE-10Front Panel
Level / frequency
display
Remote sensor

MCMM
66 dB
40 dB
30 ohms
100 ohms 47 kilohms
300 ohms

AD-50

DAC-50

Optical fiber cable− ＋ − ＋Power switchCartridge
Gain

Digital Input Board

Coaxial digital cable

CD player● Subsonic filter

DAC-10/DAC-20/
DAC-30/DAC-40

Digital component

Bar graphmeters● Load impedance selector button (for MC only)

Digital InputBoard

Connection example

Inputselector● Supports MC and MM cartridges

boards can also be used:

HIGH

AD-50

Features a high-performance phonoequalizer for playback of analog records.

■ The following option− ＋ − ＋Analog
outputs

Analog Disc Input Board

Rear Panel
Function
display

Button for opening
sub panel

Volumecontrol

Headphonejack

Attenuatoron / off button

Guaranteed Specifications
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300 W
2-ohm load
200 W
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4-ohm load
100 W
8-ohm load
50 W
2-ohm load
0.05%
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±+] G%*Response
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Continuous Average
Output Power௅+]*: At rated continuous average output

Line input connectors
Recorder input / output Preamplifier output Power amplifier input
TUNER / CD / LINE 1, 2, 3 connectors REC / PLAY connectors PRE OUT connectors MAIN IN

Option board
installation slots

Phase selector

AC power
supply connector
Speaker terminals A / B (2 sets)

Balanced input connectors
BAL CD / BAL1 – BAL2

Preamplifier output
connectors PRE OUT (BAL)

Power amplifier input
connectors MAIN IN (BAL)Max.
Supported
16 mm
Spade lug
(0.63 )
dimensions Min. 7 mm (0.28 )[Guaranteed specifications are measured according to EIA standard RS-490.]

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G% +]Turnover frequency %DVV+]Tone Controls
and adjustment range 7UHEOHN+]
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G% +]Attenuator-G%*DLQ,QSXWVKRUWHG $ZHLJKWLQJ
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Impedance
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Power Requirements 999$& YROWDJHDVLQGLFDWHGRQUHDUSDQHO +]Input

Power ConsumptionIdle,QDFFRUGDQFHZLWK,(&180 W
390 W

0D[LPXP'LPHQVLRQV :LGWKPP ´ [+HLJKWPP ´ ['HSWKPP ´
1HWNJ OEVMassIn shipping cartonNJ OEVRemarks★ 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.
★ The 230 V version has an Eco Mode that switches power off after 120 minutes of inactivity.
★ The shape of the plug of the supplied AC power cord depends on the voltage rating and destination country.

Supplied accessories● AC power cord
● Remote Commander RC-240●The specifications and appearance of this product are subject to change without notice.
K1905Y PRINTED IN JAPAN 850-2217-00（B1）