Audio Database
EA-G90
Commentary

This is a graphic equalizer that can be arranged according to listening space, listening source and listener's preference.

It uses a 12-band type with independent left and right sides, and the center frequency is divided into 12 octaves from 16 Hz to 32 kHz.
2-step switching type with variable width of ± 12 db and ± 6 db is adopted.

With the character reverse switch, the ± characteristics can be reversed.

If you have a built-in recording switch and want to record the equalized sound as it is, turn it on.
Also, while enjoying the equalization effect, turn off the normal recording times.

If you have a tape monitor switch, turn it on to monitor recording and playback on the tape deck.
You can also perform equalization playback by turning on the equalizer switch during playback.

An attenuator switch is provided. When the switch is turned on, the input signal level is attenuated by 6 dB (1/2).

There were 2 types, the silver type EA-G90 and the black type EA-G90BL.

Model Rating
Type Graphic equalizer
Center frequency 16 Hz, 31.5 Hz, 63 Hz, 125 Hz, 250 Hz, 500 Hz
1 kHz, 2 kHz, 4 kHz, 8 kHz, 16 kHz, 32 kHz
Frequency level control range ± 12 dB / ± 6 dB
Rated output level 1V
Gain 0dB
Total harmonic distortion factor 0.005%
Frequency characteristic 10 Hz to 20 kHz ± 0.5 dB
20 Hz to 100 kHz ± 1.5 dB
S/N(IHF-A) 105dB
Maximum Input Voltage 8V
Channel crosstalk 70 dB (1 kHz, Input Short)
Input impedance 47k Ω
Output impedance 330 Ω
Power supply voltage 100 VAC, 50Hz/60Hz
Power consumption 9W
External dimensions Width 440x Height 120x Depth 303 mm
Weight 3.5kg
Attachment Connection code : 2 Sets