Accuphase laboratory E-4000 Integrated Stereo Amplifier
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- Description
- Specifications
- Reviews
The E-4000 integrated amplifier has emerged from separate amplifier technologies. The preamplifier section features AAVA using ANCC to allow for volume adjustments that maintain high levels of vibrancy. The power amp section employs balanced transmission utilizing the instrumentation amplifier principle to drive noise suppression to its limit. The E-4000 is equipped with a four-fold parallel push-pull configuration of power transistors driven in Class AB in the output stage to extract every last ounce of potential from the speakers and create soundscapes filled with subtlety.
- Revolutionary AAVA volume control
- Four-fold parallel push-pull configuration of power transistors driven in Class AB
- High power output of 180 watts into 8 ohms / 260 watts into 4 ohms
- Power amplification stage configured as instrumentation amplifier
- High damping factor of 800
- Strong power supply with massive high-efficiency toroidal transformer
- High-voltage, large filtering capacitors
- Protection circuitry using MOS-FET switches
|
Continuous Output RMS (20-20,000 Hz) |
260 watts per channel into 4 ohms, 180 watts per channel into 8 ohms |
|
Total Harmonic Distortion (20-20,000 Hz) |
0.05% with 4 to 16 ohm load |
|
Intermodulation Distortion |
0.01% |
|
IFrequency Response |
20 - 20,000 Hz (+0, -0.2 dB) |
|
Damping Factor |
800 (8-ohm load) |
|
Output Voltage and Impedance (Pre Output) |
1.51 V, 50 ohms |
|
Gain (High-Level Input > Pre Output) |
18 dB |
|
Gain (Main In > Output) |
28 dB |
|
Bass: 300 Hz ±10 dB (50 Hz), Treble |
3 kHz ±10 dB (20 kHz) |
|
Loudness Compensation |
+6 dB (100 Hz) |
|
Attenuator |
-20 dB |
|
Dimension |
465mm x 181mm x 428mm |
|
Weight |
24.4 kg |