Avalon VT 737 SP Vacuum Tube Preamp,EXCELLENT CONDITION,Studio kept,

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Avalon 737 excellent condition, never has been out of my studio,VT-737SP SPECIFICATIONSCircuit topology Four dual triode vacuum tubes (Sovtek 6922), high-voltage discrete Class AGain Range Microphone: Transformer balanced 850/2500 ohm, 0dB to +58dB Instrument: Unbalanced 1 meg ohm, 0dB to+30dB Line: Balanced Class A 20k ohms, -27dB to 28dBMaximum input level and connector types Microphone: 26dB@25Hz, +30dB@1kHz balanced XLR Instrument+30dB unbalanced front panel jack socketLine +36dB balanced XLRMaximum output level +30dB balanced 600 ohms, DC coupled, discrete Class AOutput type and gain XLR connector, output trim gain -45dB to 20dBNoise 20kHz unweighted -92dBNoise microphone EIN -116dB, 22Hz to 22kHz unweightedDistortion THD, IMD 0.5%Frequency response -/2.5dB 10Hz to 120kHz input filter includedFrequency response -3dB 1Hz to 200kHz line in-outVU meter and gain reduction High quality illuminated OVU =+4dB and gain reduction to -20dBHigh cut filter Variable 6dB per octave 30Hz to 140HzCompressor type Optical passive attenuator incorporating twin vacuum tubes and stereo linkThreshold - Ratio Threshold variable -30dB to +20dB, ratio-compression variable 1:1 to 20:1Attack - Release Attack variable 2mS to 200mS, release variable 100mS to 5 secondsEqualizer type Discrete Class A, variable active and switched passive designFrequency bands read more