HK 503

MSRP U.S.

$279.95 each

Dimensions (H x W x D)

5-5/8 (w/feet) x 16-3/4 x 12-1/2 (w/knobs and AM loop)

Amplifier Power (RMS)

40 watts per channel @ <0.04% THD primarily low order harmonics @ 8 ohms from 20 – 20kHz DIN 45500 – 57 watts @ 8 ohms

Power Bandwidth

HALF POWER – 10Hz – 100kHz @ half rated output into 8 ohms

Frequency Response

below 1Hz – 120kHz, -3dB @ rated output

Total Harmonic Distortion

0.03% primarily low order harmonics 1kHz @ rated output

Transient Intermodulation Distortion (TIM)

0.06% @ rated output

Transient Intermodulation Distortion (TIM)

0.02%

Slew Rate

65 volts/uSec

Rise Time

SQUARE WAVE – better than 2.5usec @ 20kHz

Square Wave Tilt

< 3% @ 20Hz

Negative Feedback

28dB

Damping Factor

> 30 @ 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 – 170mV

Input Impedance

PHONO – 47k ohms

Phono Overload

>120mV

RIAA Equalization

±1dB