This is an Universal Supply of +5V, +12V, -12V Outputs, You can use this board to match with All types of Bass Treble Tone Controls & Sub Woofer Pre Amp Boards & USB Mp3 / FM / Bluetooth Modules
High quality components & Optimum heatsinks used for regulators to reduce the Heat
By using this board unwanted noises can be arrested, No need of excellent technical skills,
Separate power output for cooling FAN, This will also reduces the "woinggg" sound