The Prefer microphone booster MB-7, makes it possible to connect a mono microphone to a stereo- line or stereo aux-input of an amplifier, radio-cassette recorder, tape recorder or an equivalent stereo input, provided with two RCA-cinch inputs.
The mono-mike signal is split up as a mono signal over the stereo input.
The high gain of 40 dB and the very low noise of -123 dBA allows you to use, high quality microphones so you will have a perfect recording.
The power-supply is a 9 Volt battery, which is switched off automatically, when you take the microphone plug out of the booster.