Audio Database


A monaural universal frequency equalizer.

The frequency range from 10 Hz to 32 kHz is divided into 12, and the level of each center frequency can be continuously varied within ± 12 dB. Each band consists of a CR-only active filter.

Newly developed CR active filter is used as filter.
The SH-9090 uses analog computer technology and a double-integral bandpass filter from Shinkai.

Each center frequency of the 12 bands can be continuously changed by ± 1 octave from the reference value.

Q (Bandwidth), which represents the sharpness of the resonance peak, can be continuously changed between 0.7 and 7.

Equipped with a master level controller that can adjust the input gain.

Equipped with an equalizer in-out switch.

Model Rating
Type Monaural graphic equalizer
Output 1 V (rated)
7 v (max.)
Total Harmonic Distortion Factor (T. H. D.) 0.05%
Input Sensitivity / Impedance 1V/50k Ω
Frequency characteristic 10 Hz ~ 30 kHz + 0 -0.5 dB
3 Hz ~ 80 kHz + 0 -3dB
SN ratio (at IHF-A, output 1 V) 90dB
Master Level Control ± 6 dB (continuously variable)
Band level control ± 12 dB (continuously variable)
Frequency control ± 1 oct. (continuously variable)
Band wiss control Q = 0.7 to 7
Center frequency 10 Hz, 30 Hz, 60 Hz, 125 Hz, 250 Hz, 500 Hz
1 kHz, 2 kHz, 4 kHz, 8 kHz, 16 kHz, 32 kHz
Power supply voltage 100 VAC, 50Hz/60Hz
Power consumption 20W
External dimensions Width 450x Height 193x Depth 375 mm
Weight 9.2kg