API 3124+ 4 Channel Preamp - the same microphone preamp circuit that is used in all API consoles, RE-115K thomann mic transformer and output transformer. Channel controls: 48V phantom power, phase, pad (-20dB), mic/line. Font high-Z unbalanced input for guitar or bass (up to +22dB), output up to +30dBm, 65dB channel gain, XLR in/out (rear). The unit has an internal 48-volt phantom power supply, which is switchable for each channel, as well as -20dB pad switches that affect both the mic and Hi-Z instrument inputs, both located on the front panel. Another feature of the 3124+ is that it can provide up to 65dB of gain to an output clip level of +28dBu.Additionally, the Hi-Z front panel inputs feed directly to the op amps, which allow a low level input such as a guitar or bass to be amplified without a matching transformer or direct box. These Hi-Z inputs can take input levels as high as +20dBu, making them perfect for keyboards and other high level devices. The mic preamp outputs are on rear panel male XLR connectors. Uses API 2520 Op Amps, Four female XLR mic inputs, Front panel polarity switches Classic API console circuit, Front panel 48V power switches Four front panel 1/4 Hi Z instrument inputs Front panel -20dB pad switches, Front panel mic/instrument switches Outputs clip at +28dBu. Good Condition Other Than a Few Scratches. Please keep in mind that we are a Pawn Shop and have not been the long term owner/user of this item. Item guaranteed to function as designed. The item "API 3124+ Discrete 4-Channel Microphone & Line Pre-amp" is in sale since Tuesday, March 08, 2016. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips". The seller is "atlantictradersusa" and is located in Chichester, New Hampshire. 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, IL, to Mexico, to New Zealand, SG, to Switzerland, NO, SA, UA, AE, QA, KW, BH, HR, MY.