Rolls DB228 Passive Wall Direct Interface for Standard Electrical Box

The DB228 is an ideal impedance matching device for connecting any unbalanced stereo signal to a balanced system. Consumer audio equipment such as CD players, DVD players, MP3 players, phone, etc., may be easily connected to a professional audio system. In addition it will mix a microphone with a line level signal and send it out via a plugable barrier strip connector. The DB228 converts high impedance audio signals (1/8" stereo input) or XLR microphone input to a low impedance output via Rolls proprietary audio transformer. Front Panel • INPUT: XLR balanced input jack for connection to a microphone.• INPUT: 1/8" (3.5mm) Tip-Ring-Sleeve jack for connection to an unbalanced Stereo signal.• Level: Adjusts the input level of both the Stereo 1/8" input and the XLR input. Rear Panel Plugable barrier strip connector on the back of the DB228. This is a balanced output. Pin 2 is hot or +, pin 3 is the out of phase signal or - and pin 1 is ground.