Always On High Pass Filter

The Broughton Audio Always On High Pass Filter is a compact version of the standard High Pass Filter with the bypass footswitch removed, allowing it to fit on a single pedalboard rail or be mounted underneath a board. Its 12 dB-per-octave high-pass filter provides a continuously adjustable cutoff from 25 Hz to 190 Hz, using the same frequency range as the switched version. The pedal is always active and has no frequency markings around the control. It works with active and passive instruments, pedals, preamps and effects loops. Input impedance is 1 MΩ and output impedance is 100Ω. It accepts 9–24V DC center-negative power, draws approximately 10 mA, and higher voltages provide additional clean headroom.