Audio Database

The pictorial image of Integra E-707

ONKYO Integra E-707
54,800yen(1983 release)

Description
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The graphic equalizer of the Integra series.
By the level controller which divided 16Hz - 32kHz right-and-left 12, a fine coordination is possible.

The testing tone oscillator (32Hz - 16kHz) corresponding to the intermediate frequency of each element is carried.
If a spot button is pushed, a 32Hz testing tone will be oscillated and the level-control knob which is 32Hz will emit light. Furthermore, whenever it pushes a spot button, the testing tone on an octave is oscillated in order, and a light generation of a knob also moves to it and a concurrent.
If a sweep button is pushed, an oscillation (32Hz - 16kHz) and a light generation of a thumb move automatically, and can check the property after whole a coordination.

Each selector button is interlocked with and the operation mode display device which displays the fluence of the signal from an input to an output with light is carried.

In order that modulation noise may not affect a tone quality, the newly developed super turbo scheme is adopted because a power transformer and an amplification part live together.
The modulation noise generated from a power-source part in two steps of work, a delta turbo circuitry and a turbo filter, and the external noise which invades from an AC power source are suppressed.

The maximum variation of each element can be switched to a two-step of }12dB and }6dB.

With the migration of a level controller, a peek and the sharpness of a dual in-line package are rectified automatically, and the relation with the next property is smoothed by considering it as a gently-sloping property.

If the display-device switchpoint which can see only the property of a single-sided channel is carried and a display-device switchpoint is pushed, a light generation of the level-control knob of the pushed channel goes out, and only the curve of another channel can be seen.

With an output selector, the after monitor of the signal recorded during the equalizing sound recording also on 3 head deck can be carried out.

Black

Rating of a mode
Form 12-element graphic equalizer
Input sensitivity (FLAT) 150mV
Input impedance 50kohm
Output voltage (FLAT) 150mV
Output load impedance 600ohm
The maximum input 5V (20Hz - 20kHz, THD 0.01%)
Center frequency 16Hz, 32Hz, 64Hz, 125Hz, 250Hz, 500Hz
1kHz, 2kHz, 4kHz, 8kHz, 16kHz, 32kHz
Frequency characteristic (FLAT) 10Hz-35kHz}0.5dB
THD 0.01% or less (20Hz - 20kHz, 1.5V output, FLAT)
SN ratio 100dB (1.5V output, IHF-A input short-circuit)
Variable span }12dB / }6dB
Gain 0dB--20dB
Oscillator frequency of oscillation 32Hz, 64Hz, 125Hz, 250Hz, 500Hz
1kHz, 2kHz, 4kHz, 8kHz, 16kHz
(SPOT/SWEEP)
Oscillator frequency characteristic 32Hz-16kHz}0.8dB
Oscillator distortion 2% or less (32Hz - 16kHz)
Oscillator output 15mV
Supply voltage AC100V, 50Hz/60Hz
Power consumption 17W
AC outlet Unswitched:200W
Dimensions Width 435x height 89x depth of 365mm
Weight 4.5kg