A401

A401

Stereo Integrated Amplifier (20 watts x 2)

Sold from 1976 until 1977

Successor Product: HK 503

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Product Specifications

Amplifier Power (RMS)
20 watts min./channel @ 8 ohms (20Hz – 20kHz)
Power Bandwidth
<10Hz to >35kHz @ <0.5% THD into 8 ohms
Frequency Response
<10Hz – >80kHz
Rise Time
SQUARE WAVE – <2 microseconds
Square Wave Tilt
<5% @ 20Hz
Total Harmonic Distortion
<0.3% from 250 milliwatts to 20 watts RMS
Transient Intermodulation Distortion (TIM)
< 0.2% @ rated power
Signal-to-Noise Ratio
<52dB residual
Sensitivity
AUX & TAPE MON... 120-150 millivolts
Sensitivity
PHONO... 2.5-3 millivolts
Damping Factor
>30
Input Impedance
AUX – >20k ohms
Input Impedance
PHONO – 47k ohms
Input Impedance
TAPE MON – >10k ohms
Tone Controls
BASS – ±12dB @ 50Hz
Tone Controls
TREBLE – ±14dB @ 10kHz
MSRP U.S.
$184.95 each

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