Audio Database

The pictorial image of Integra 624

ONKYO Integra 624
44,800yen(around the 1969 time)

Description
 
Dividing amplifier which completed the original multi-step-up scheme of Onkyo by unifying the dividers for multichannels, and additional power amplifier.

The dynamic dividing scheme is used for a dividers part so that the property of a speaker may be employed efficiently.
This serves as a scheme which controls independently the high cut with a cross over frequency, and a low cut, and it is possible to make a property into a flat more by this.

Moreover, cascade connection is possible by adding Integra 624 to holdings.

The power amplifier part serves as a whole page hardwired connection and a differential-amplification circuitry of Integra 701 direct descent.


Rating of a mode
Form Dividing amplifier
<Power amplifier part>
Output power (THD 0.1% o'clock) 22W+22W
Dynamic power 70W
Distortion (at the time of 1kHz and an Output power) 0.2% or less
Frequency characteristic 5Hz - 100kHz, and 0 -1 dB
Power Band Width (IHF) 10Hz - 100kHz
Dumping factor 100
SN ratio (IHF A network) 100dB or more
Load impedance 4ohm-16ohm
<Dividing network part>
Circuit system NF type: 12 dB/oct.
CR type: 6 dB/oct.
Splitting scheme Dynamic dividing scheme
Multi-step-up scheme
Cross over frequency Lowpass high-pass filter independent possible
250, 350, 500, 710, 1k, 2k, 2.8k, 4k,
5.7k, 8k, 11kHz
Barrier property 12 dB/oct, 6dB / oct
An All Pass Hy Law independent variable
Level control - 20dB - +10dB (1dB step)
Insertion loss 0.2dB
Input impedance 300kohm
SN ratio (IHF-A) 110dB or more
<Synthesis>
Dimensions Width 313x height 136x depth of 353mm
Weight 6.5kg