The mic preamp was seldom used (recorded a few albums) and then packed away to spend time with my kids. The mic preamp has been stored in temperature and humidity controlled room (as all my studio gear). It works great and has the natural warmth. Microphone Input Impedance: Selectable, 500 or 2k. Balanced Line Input Impedance: 20k.Hi-Z Input Impedance: Selectable, 2.2M or 47k Maximum Microphone Input Level: -8 dBu 2K input Imp. & 15 dB Pad in. Maximum Output Level: +20 dBu (120Vac line) Internal Output Impedance: 80 ohm. Recommended Minimum Load: 600 ohm Frequency Response: 20 Hz to 20 kHz +/- 0.5dB. Maximum Gain: 40 dB (Line), +77dB (Mic).
Noise Floor: -72 dBu 20 20kHz (Line In, Unity Gain). Tube Complement: (3)12AX7, (1)12AT7A, (1)6AQ5. Power Requirements: 115V / 230V operation. Dimensions: 3.5 vertical, 19 rack (2RU).The item "Universal audio mic preamp" is in sale since Monday, July 25, 2016. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips". The seller is "5678776" and is located in Wake Forest, North Carolina. This item can be shipped to United States, to Canada, to United Kingdom, DK, RO, SK, BG, CZ, FI, HU, LV, LT, MT, EE, to Australia, GR, PT, CY, SI, to Japan, to China, SE, KR, ID, to Taiwan, TH, to Belgium, to France, to Hong Kong, to Ireland, to Netherlands, PL, to Spain, to Italy, to Germany, to Austria, RU, IL, to Mexico, to New Zealand, SG, to Switzerland, NO, SA, UA, AE, QA, KW, BH, HR, MY.