+30dB balanced 600 ohms, DC coupled, discrete Class A. 1/4 connector, output trim gain -45dB to20dB. 116dB, 22Hz to 22kHz unweighted. 10Hz to 120kHz input filter included.1Hz to 200kHz line in-out. VU meter and gain reduction. High quality illuminated OVU =+4dB and gain reduction to -20dB. Variable 6dB per octave 30Hz to 140Hz. Optical passive attenuator incorporating twin vacuum tubes and stereo link. Threshold variable -30dB to +20dB, ratio-compression variable 1:1 to 20:1. Attack variable 2mS to 200mS, release variable 100mS to 5 seconds. Discrete Class A, variable active and switched passive design. Treble - switched 10kHz, 15kHz, 20kHz, 32kHz, +/- 20dB range, shelf High mid - variable 200Hz to 2k8Hz and 2kHz to 28kHz, +/- 16dB range, hi-lo Q Low mid - variable 30Hz to 450Hz and 300Hz to 4k5Hz, +/- 16dB range, hi-lo Q Bass - switched 15Hz, 30Hz, 60Hz, 150Hz, +/- 24dB range, shelf. The item "Avalon 737SP Mic pre" is in sale since Saturday, May 25, 2019. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips". The seller is "bettsbg" and is located in North Hollywood, California. This item can be shipped to United States.