HK 505

HK 505

Stereo Integrated Amplifier (60 watts x 2)

Sold from 1978 until 1980

Predecessor Product: A402
Successor Product: PM 650

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Product Specifications

MSRP U.S.
$399.95 each
Dimensions (H x W x D)
5-5/8 (w/feet) x 16-3/4 x 15-1/2 (w/ knobs & AM loop)
Amplifier Power (RMS)
60 watts per channel @ <0.03% THD primarily low order harmonics @ 8 ohms from 20 – 20kHz DIN 45500 – 75 watts @ 8 ohms
Power Bandwidth
HALF POWER – 8Hz – 100kHz into 8 ohms
Frequency Response
below 1Hz – 140kHz, -3dB @ rated output
Total Harmonic Distortion
0.025% primarily low order harmonics 1kHz @ rated output
Transient Intermodulation Distortion (TIM)
0.06% @ rated output
Transient Intermodulation Distortion (TIM)
0.01%
Slew Rate
65 volts/uSec
Rise Time
SQUARE WAVE – better than 2.5usec @ 20kHz
Square Wave Tilt
< 3% @ 20Hz
Negative Feedback
28dB
Damping Factor
> 50 @ 8 ohms
Hum and Noise
PHONO --88dB A-WTD
Hum and Noise
AUX & RES --100dB A-WTD
Input Sensitivity
PHONO -2.2mV
Input Sensitivity
AUX – 130mV
Input Impedance
PHONO -47k ohms
Phono Overload
>225mV
RIAA Equalization
±0.75dB

Stereo Integrated Amplifier (60 watts x 2)

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