HK 670

Amplifier Power (RMS)

60 watts min. per ch, both driven into 8 ohms from 20Hz – 20kHz @ less than 0.06% THD DIN 45500 – 75 watts @ 8 ohms

Power Bandwidth

8Hz – 100kHz @ < 0.08% THD into 8 ohms both channels driven simultaneously, @ 30 watts RMS per channel

Total Harmonic Distortion

0.03% 1kHz @ rated output

Transient Intermodulation Distortion (TIM)

0.05% @ rated output

Frequency Response

Below 3Hz – 140kHz -3.0dB

Frequency Response

FM – 20Hz – 15kHz (±0.5dB)

Damping Factor

> 30 @ 8 ohms

Hum and Noise

PHONO – -90dB A-weighted, IHF

Hum and Noise

AUX & RES – -102dB A-weighted, IHF

Slew Rate

65V/usec

Rise Time

SQUARE WAVE – 2.5usec @ 20kHz

Square Wave Tilt

<2% @ 20Hz

Negative Feedback

28dB

Input Sensitivity

PHONO – 2.2mV

Input Sensitivity

HIGH LEVEL – 130mV

Phono Overload

>225 mV

Input Impedance

PHONO – 47k ohms

Quieting Sensitivity

MONO – 3.0uV

Quieting Sensitivity

STEREO – 30uV

Signal-to-Noise Ratio

FM – -75dB

Image Rejection

-80dB

IF Rejection

-110dB

Stereo Separation

55dB @ 1kHz

Distortion

FM MONO – 0.05% @ 1kHz, 100% modulation

Distortion

FM STEREO – 0.08% @ 1kHz, 100% modulation

MSRP U.S.

$569.95 each

Usable Sensitivity

FM MONO – 1.9uV

Capture Ratio

FM... 1.2dB

Alternate Channel Selectivity

FM... 75dB

AM Rejection

FM... -62dB

Sensitivity

AM... 300uV/meter

Selectivity

AM... -40dB

Alternate Channel Selectivity

AM... 35dB

Image Rejection

AM... -50dB @ 1kHz

IF Rejection

AM... -45dB @ 1kHz