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Stereo Graphic Equalizer (1993-97)

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Input Sensitivity: 300mV

Output Level: 6V (max)

Frequency response: 10Hz to 100kHz

Signal to Noise Ratio: 90dB

Total harmonic distortion: 0.01%

Control Range: ± 12dB

Frequency Bands: 30, 60, 125, 250, 500, 1K, 2K, 4K, 8K, 16KHz

Dimensions: 435 x 83 x 213mm

Weight: 2.7kg

Year: 1993


service manual  English - mauriziobubu

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Reviewed Aug 13th, 2015 by Brian Richmond

Bought used, $25 CDN. Excellent equalizer. I am using it with a Harman/Kardon AVR 85, also excellent, I bought used for $40 CDN. Vintage audio is the best!

Reviewed Jun 07th, 2013 by mail2manjue

superb and well performance



re: EQA-220

Having trouble hooking this up. Can anyone tell me the correct way to hook this up to the tape monitor on my receiver?

re: EQA-220


I have the cheaper version of this great equalizer (EQA-180). I have issues with the slider on the left channel. On the 250 Hz band, as the control slides, the signal starts to make a very high scratch sound and then, the signal of the left channel may cut totally!.

I tried with a grease Lub for electronics equipment, but the problem persists!

any helpdful advice...I am starting to dissamble it (8-ยก .

Thanks to Hi Fi engine for uploading the scamatics!


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