Passive stereo equalizer.

Module format: 500 Series
Input transformer: Carnhill
Output transformer: Edcor
Q factor: 0.5 - 4
Boost / cut range: +/- 15dB
Wired bypass
Input impedance: 1 kOhm
Output Impedance: 600 Ohm
Frequency range: 5 - 20,000Hz
Consumption: 7W