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Stereo Ten Band Graphic Equalizer

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The TEAC Model EQA-10 is a stereo ten band graphic equalizer with a ten band audio frequency spectrum analyzer incorporated into the front panel.

The EQA-10 has front panel switches that permit the user to choose one of the two input sources or tape, an EQ in/out switch, and a pre/post EQ switch that allows auditioning of equalized or non equalized signals without disturbing a tape recording in process.


Input Sensitivity: 320mV

Frequency response: 5Hz to 100kHz

Signal to Noise Ratio: 80dB

Total harmonic distortion: 0.03%

Control Range: ± 12dB

Frequency Bands: 30, 60, 120, 250, 500, 1K, 2K, 4K, 8K, 16KHz

Dimensions: 415 x 58 x 180mm

Weight: 2.3kg



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Reviewed Jan 03rd, 2018 by dnoel01

The EQA-10 was probably the first mainstream equalizer I remember due to its' $100 list price giving it wide acceptance in the market. I think I purchased mine new in 1981 or 1982. The spectrum analyzer was a nice touch for night viewing and I suppose had some legitimate use for visually referencing the EQ curve. Back in those days, we'd record albums to cassette for use in car audio systems, and having the ability to pre-equalize cassette tapes to punch up both the bass and high-end made a world of difference when listening in the car. When running in home audio mode though, I usually minimized or outright bypassed the EQ settings as it would introduce some audible (although very slight) distortion into the music. For those with smaller home speakers, I'm sure this unit did provide some usable tone control. Though I generally applaud all TEAC products, particularly their cassette decks, this particular unit was of marginal quality...push switches that would occasionally 'pop' loudly through the speakers when engaged or disengaged, and a color display with a dimmer secondary ghosted image that developed after a period of months. Still, these units did serve a purpose back in their day, when analog albums did not offer the bass response we're all accustomed to today.



re: EQA-10

I just bought one through shopgoodwill.com. Only $21 in, and the dang spectrum display won't work. What is equally maddening when the unit is powered up/down, and tape loop buttons, eq on/off buttons are all pressed, the internal static causes the LEDs to display and randomly jump. But no music signal will cause the LEDs to illuminate. Piece of junk???

teac equaliser manual

thank you for the manual. my transformer has failed. the secondary has five wires out. want to know the output voltages. can any one help please. input is 110/220volt 8watt. one of the output voltages is 24 volt what about the other wires in secondary.

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