Uses 2 modules for 4 channels total. Power is delivered by a 18.5V laptop supply and then filtered by two Texas Instruments TL780-15 15V regulators. Each supplying 15V independently to each board. Uses the Sleep feature on the board to turn the boards on and off. Can use either the front panel switch or use a receiver/pre-amp with 12V DC Trigger to turn and off remotely.
