Balanced inputs and outputs, 2U Rackmount Chassis. Low noise and distortion, switched gain [1dB steps]. Switched frequencies on step, resonant and high pass filter. Switched cut and boost [1.5 dB steps] +/- 7.5dB. Clipping Level: +29dBu Low Frequency Resonant: @ 30Hz, 60Hz, 120Hz, 240Hz, 500Hz and 1000Hz [Switched] +/-7.5dB [In 1.5dB steps]. Level Indication: Red L.E.D's set 8 dB below clipping. Green L.E.D's set +8 dBu and +18 dBu. High Frequency Resonant: @ 3KHz, 4KHz, 5KHz, 6KHz, 8KHz and 10KHz [Switched] +/-7.5dB [In 1.5dB steps]. Gain Range: -5 >> +6dB in 1dB steps. Low Frequency Step: 25Hz, 50Hz, 100Hz, 200Hz, 400Hz and 800Hz. [Switched] +/-7.5dB [In 1.5dB steps]. High Pass Filter: 50Hz Slope 18dB / Octave High Frequency Step: 2KHz, 4KHz, 8KHz, 12KHz, 16KHz and 32KHz [Switched] +/-7.5dB [In 1.5dB steps].