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Accuphase E-650 CLASS-A PRECISION INTEGRATED STEREO AMPLIFIER
Innovative engineering and top-grade parts and materials come together in this product featuring the superb Balanced AAVA type volume control and a triple parallel arrangement of power MOS-FETs in the output stage. The power amplifier section employs the latest instrumentation amplifier configuration
for balanced signal transmission, resulting in an integrated amplifier with fully balanced configuration from the inputs right through to the output. The massive power supply and low-impedance output circuitry deliver 150 watts per channel (into 1 ohm, with music signal) and a damping factor of 800.
Features & Specifications
Rated Continuous Average Output Power (both channels operating simultaneously, 20 – 20,000 Hz): 150 W/ch 1-ohm load (music signal only), 120 W/ch 2-ohm load, 60 W/ch 4-ohm load, 30 W/ch 8-ohm load
Total Harmonic Distortion (both channels operating simultaneously, 20 – 20,000 Hz): 0.05% 2-ohm load, 0.03% 4 to 16 ohm load
Intermodulation Distortion: 0.01%
Frequency Response: HIGH LEVEL INPUT, At rated continuous average output: 20 – 20,000 Hz +0, –0.5 dB, MAIN IN, At rated continuous average output: 20 – 20,000 Hz +0, –0.2 dB, At 1 watt output:3 – 150,000 Hz +0, –3.0 dB
Damping Factor: 800 (with 8-ohm load, 50 Hz)
Input sensitivity and impedance (rated output/1W output/Impedance): High Level input -77.7mV/14.2mV/20kΩ, Balanced Input -77.7mV/14.2mV/40kΩ, Main In Line-0.617V/113mV/20Ω, Main In Balanced -0.617V/113mV/40kΩ
Output Voltage and Impedance: PRE OUTPUT 0.617 V, 50 ohms (at rated continuous average output)
Gain: HIGH LEVEL INPUT → PRE OUTPUT :18 dB, MAIN IN → OUTPUT: 28 dB
Tone Controls – Turnover frequency and adjustment range: BASS; 300 Hz ±10 dB (50 Hz),TREBLE; 3 kHz ±10 dB (20 kHz)
Loudness compensator: +6dB(100 Hz)
Attenuator: ─20 dB
S/N Ratio, Input-converted Noise (SN ratio at rated output/SN ratio EIA): High level Input – 102dB/97dB, Balanced input – 102dB/97dB, Main In – 117dB/101dB
Bar Meter: Represents output voltage value (dB) using 26 points With meter on/off switching function
Output Load Impedance: 2 to 16 ohms
Stereo Headphones Suitable impedance: 8 ohms or higher
Power Requirements: 230v AC, 50Hz
Dimensions (WxHxD, mm): 465 x 191 x 428
Weight: 25.3kg net, 32kg shipped
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