Accuphase E-4000 integrated amplifier
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
Specifications
AAVA volume control
Power amplifier section in ‘instrumentation amplifier’ configuration
Power transistors, 4-parallel push-pull Class-AB operation
High power output of 180 W/8 Ω and 260 W/4 Ω
High damping factor: 800
Powerful power supply with large high-efficiency toroidal transformer and high-voltage, high-capacity filter capacitors
MOSFET switch” protection circuit
Speaker output protection circuit to prevent short circuit accidents.
Slot for two optional boards (sold separately)
Digital input board ‘DAC-60’ (sold separately) plays high-resolution sound sources from digital equipment
Analogue disc input board AD-50 (sold separately) plays analogue vinyl records.
