Check the listing for details. AB15 Professional Mono Amplifier Board 1500W. Color: Multicolor, Condition: New. Listed at 157.53 USD. AB15 Professional Mono Amplifier Board 1500W Introduction1. Using Toshiba TT1943/5200 audio high-power tube 12 pairs.2. coupling capacitor using capacitor 10UF, electrolytic capacitor signal main circuit using Taiwan, the main filter capacitor using Japan imported chemical3. resistors use five-ring metal resistors, the main circuit uses the accuracy of ± 1% of the five-ring metal film resistors to ensure a good signal-to-noise ratio of the whole machine.4. PCB adopts 1.6mm thick double-sided plate, 2.0oz copper thickness, spray tin full process, to ensure the good performance of the size of the current through. The quality of the PCB.5. Heat sink part of the use of high thermal conductivity aluminum heat sink, faster heat dissipation effect better Parameters:1. power supply: dual DC +75v-0--75V; single AC 12V or 15V (1A-2A)2. Power: 1500W * 13. weight: 1.6KG Note: if not connected to the potentiometer, 1 and 2 feet short connection Package:1pc AB15 Professional Mono Amplifier Board 1500W