Eight Octave Filter

The RS215 incorporates eight static filters with centre
frequencies of 100Hz, 200Hz, 400Hz, 800Hz, 1.6kHz, 3.2kHz,
6.4kHz and 12kHz, and the eight knobs on the front panel are
gain controls that allow you to affect the amplitude of the signal
in each band.

http://www.analoguesystems.co.uk/index2.htm

• ? mA +12V
• ? mA -12V
• ? mA 5V

No info about availability.