Baxandall Stereo EQ

This a stereo EQ with one control set for both sides.
High and Low band are shelving, mid-band is bell.
All controls are stepped.
Every band can be switched from normal stereo-mode to mid or side.

Specifications:
Frequency Response: -1dB @ 120kHz, -1dB @ 5 Hz
Max. Level: +24dBu
Input Impedance: 48kOhm (balanced)
Output Impedance: 50Ohm (balanced)
Power consumption: 400mA
Weight: 600g
Dimensions: 2slot

http://www.bereich03-audio.de/bax_eq.html