Accuphase E-700

An integrated amplifier crafted from the technology used in our flagship model

The E-700 is an evolutionary integrated amplifier that incorporates numerous technologies from our 50th anniversary flagship model, the E-800. The preamplifier section uses a Balanced AAVA type volume control with ANCC to create a balanced configuration from input to output and achieve driving perfection.
The power amp stage that drives the speakers has been fortified from three elements to four, further increasing reliability. Experience the full breadth of emotion in live performances with the E-700’s superior expression.

Power amplification stage that achieves linear output
The power amplification stage on both the left and right sides features a large heat sink and employs four-fold parallel push-pull power transistors driven in Class A to provide linear power output of 35 watts into 8 ohms, 70 watts into 4 ohms, and 140 watts into 2 ohms.

Power supply circuitry delivers steady power
A strong power supply featuring a massive toroidal transformer and two high-voltage, large filtering capacitors (56,000 μF/50 V) offer a stable power supply at all times.

High damping factor brings out the full potential of speakers
The damping factor represents the amplifier’s ability to drive the speakers.
A damping factor of 1,000 (guaranteed) extracts the maximum potential from the loudspeakers.

Advanced Features
■ Balanced AAVA volume control circuit
■ High-accuracy, high-rigidity volume sensor construction
■ Highly reliable logic-control signal switching relays
■ Power amplification stage configured as an instrumentation amplifier
■ Balanced remote sensing to improve the damping factor
■ Current feedback amplification circuit topology assures excellent phase characteristics in the high range
■ Preamplifier I/O terminals (LINE / BALANCED)
■ Dedicated, high-quality headphone amplifier
■ –20 dB volume attenuator to instantly reduce the sound level
■ Speaker output selector
■ Tone controls using summing active filters
■ Individual phase setting for each input
■ Stereo signal can be switched to monophonic operation
■ Loudness compensator to adjust audible sonic balance
■ Display mode selector
■ DAC input selector (when DAC-60 / DAC-50 / DAC-40 is installed)
■ MC/MM selector (when AD-60 / AD-50 / AD-30 / AD-20 is installed)
■ Subsonic filter ON/OFF selector (when AD-60 is installed)
■ MC input impedance selector 30 ohms / 100 ohms / 200 ohms / 300 ohms (when AD-60 is installed)
■ Left/right balance control using AAVA
■ Power amplification input selector (LINE / BALANCED)
■ Recorder selector
■ Volume display
■ Sampling frequency display (when DAC-60 / DAC-50 / DAC-40 is installed)
■ Five sets of line inputs
■ Speaker output protection circuit guards against short-circuiting
■ Two sets of balanced inputs
■ Two sets of large speaker terminals
■ Highly sensitive LED power meters capable of displaying output levels to –50 dB
■ Highly reliable MOS-FET switches
■ High-carbon cast iron insulators for superior vibration damping