Balance Microphone Pre-Amplifier

Go from either dynamic condenser or electret microphone to line-level with a minimum of noise , distortion and hassle. Balance Microphone preamplifier is ultra clean one channel preamplifier, intended for use in most critical digital analog recording situations. The kit delivers exceptional sonic performance even with extremely high input levels, making it ideal mate to the latest generation of transformer less condenser Microphones. Built around well know pro audio preamplifier IC, Very low noise and distortion kit offers 40dB overall gain variation, from 20dB to 60dB on board DC servo feedback and Balance audio output driver .All condenser Microphone require some kind of electrical power and this power call phantom, kit has facility for phantom power input and on board switch to turn on and off. The phantom power term means a positive DC voltage sent to the microphone on both audio leads through current limiting resistors.

Supply dual 15V DC @ 500mA
Trimpot for Audio gain adjust 20dB-60dB
Frequency response 20hz-20Khz
Maximum input +13dBV
Input impedance greater then 3K ohms
DC servo feed back
Balance driver IC for balance audio output
Berg connector for unbalance audio out
Berg connector for phantom power input 48V @ 20mA
Slide switch for phantom power on/off
RFI/EMI filter in input and output
Female XLR for Microphone input
Male XLR for Balance audio output
Berg connector for supply input
Berg connector Aux audio out and dual supply for VU meter