• 5.1 Input/2.1 Input ( by selection switch), Power input 12 0 12 dual supply 1 amp
• Master Volume included in one board on other board you have to add all controls
• It is a passive preamp and so amplifier for all 6 channel must need to connect
• We also provide transformer with 2 separate output for Prologic 12-0-12 and 0-20 for main 5.1 audio board. Both output in single transformer
• Board only can also be used for the purpose of Subwoofer Out, Surround Out and L R out with built-in Bass Treble

This is an optimized version of the passive 5.1 preamplifier tone board, the circuit uses the optimized version of the high and low tone adjustment circuit, the sound is detail rich.