Circuitry designed by legendary John CurlTHX Ultra2 certifiedHigh bias Class A/AB operationBalanced inputs with discrete circuits and XLR connectorsDirect coupled - no capacitors or inductors in signal pathComplementary MOSFET driver stage and JFET input stage16 beta-matched 15 amp, 60 MHz bipolar output transistors1.2 kVA encapsulated toroid power transformer with independentSecondary windings for each channel100,000 µF power supply filter capacitanceDC Servo and relay protection circuitsAC present, channel status, high temperature indicatorsHeavy-duty 24k gold-plated 5-way speaker terminalsGold-plated RCA input jacks, ground lift switchAuto turn-on by 12v trigger or audio signal, 12v trigger out