AKAI EA-G90
¥ 49,800 (around 1981)
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 |