• E-280 Integrated Stereo Amplifier - Trimira
  • E-280 Integrated Stereo Amplifier - Trimira
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Accuphase

Accuphase E-280 Integrated Stereo Amplifier

Accuphase E-280 Integrated Stereo Amplifier

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Made in Japan

JP

Accuphase

E-280 Integrated Stereo Amplifier

The AAVA volume control builds upon the knowledge of high-end equipment to control volume without loss of information. The power amplification section utilizes the instrumentation amplifier principle to create an ideal speaker driver. The low impedance design of the output circuitry brings out the full potential of every speaker. Two option boards can be added for improved expandability. The E-280 sound performance will defy the imagination.

  • AAVA volume control
  • Power amplification stage with bipolar transistors in double parallel push-pull configuration
  • Rated for 120 watts into 4 ohms and 90 watts into 8 ohms
  • High damping factor of 500
  • Power amplification stage configured as instrumentation amplifier
  • Current feedback amplification topology in power amplification stage
  • Logic-control relays for shortest signal paths
  • Strong power supply with massive high-efficiency transformer and large filtering capacitors
  • Protection circuitry using MOS-FET switches
  • Two rear panel expansion slots allow use of option boards

 

  

 

Specification

Rated Continuous Average Output
Power (20 - 20,000 Hz)
(both channels driven)
 4-ohm load 120W
 8-ohm load 90W

THD

(20 - 20,000 Hz)
(both channels driven) 4 to 16-ohm load 0.05%
Intermodulation Distortion   0.01%

Frequency Response
Balanced Input At rated continuous average output 20-20,000 Hz (+0, -0.5dB)
Line Input At rated continuous average output 20-20,000 Hz (+0, -0.5dB)
Main In  At rated continuous average output
 At 1 watt output
20-20,000 Hz (+0, -0.2dB)
 3-150,000 Hz (+0, -3.0dB)

 
Damping Factor 500 (with 8-ohm load, 50 Hz)
Input Sensitivity and impedance
Input

Input sensitivity

For rated output  For 1 Watt output (EIA)
Input impedance
BALANCED INPUT
134mV  14.2mV

40 kilohms
LINE INPUT
134mV  14.2mV
20 kilohms 
MAIN IN
1.07mV 113mV 

20 kilohms 
Max. input voltage
BALANCED INPUT 5.0V
LINE INPUT 5.0V 
Output voltage and Impedance PRE OUTPUT 1.07 V 50 ohms (at rated continuous average output)
Gain

 

BALANCED INPUT -> PRE OUTPUT 18dB
LINE INPUT -> PRE OUTPUT 18dB
MAIN -> OUTPUT 28dB 
Tone Controls

Turnover frequency and adjustment range

BASS: 300 Hz ±10 dB 

TREBLE: 3 kHz ±10 dB 
Loudness compensator +6dB (100Hz)
Attenuator -20dB

S/N Ratio,

Input-converted Noise
Input

S/N ratio at rated output

(A-weighted, with input shorted)

 S/N ratio (EIA)
BALANCED INPUT 96dB 97dB
LINE INPUT 107dB 98dB
MAIN IN 122dB  102dB
Power Level Meters
 Logarithmic peak level indication, shown in dB and percent
Output Load Impedance
1 set of speakers 4 to 16 ohms 
2 set of speakers 8 to 16 ohms
Stereo Headphones Suitable impedance: 8 ohms or higher
Power Requirements 120 V, 220 V, 230 V AC (voltage as indicated on rear panel), 50/60 Hz
Power Consumption

52W idle

249W in accordance with IEC 60065
Maximum Dimensions

Width 465 mm ( 18.31")

Height 151 mm ( 5.9")a

Depth 420 mm (16.5'')
Mass

20.4 kg (45.0 lbs) net

26.0 kg (57 lbs) in shipping carton

 

Review

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