Accuphase E-280 Integrated Stereo Amplifier
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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
Specs
Continuous average output power: 90 W/ch (8 ohms, both channels driven, 20 - 20,000 Hz, THD 0.05%)
Frequency response (1 W output): 3 Hz – 150 kHz +0, –3 dB
Damping factor: 500 (EIA, 8-ohm load, 50 Hz)
Input sensitivity: 0.126 mV (DISC MC), 2.5 mV (DISC MM), 134 mV (BALANCED, LINE), 1.07 V (MAIN IN)
S/N ratio: 96 dB (BALANCED INPUT), 107 dB (LINE INPUT), 122 dB (MAIN IN