Parasound A51 Halo 5ch Power Amplifier

Circuitry designed by legendary John Curl
THX Ultra2 certified
High bias Class A/AB operation
Balanced inputs with discrete circuits and XLR connectors
Direct Coupled – no capacitors or inductors in signal path
Complementary MOSFET driver stage and JFET input stage
40 beta-matched 15 amp, 60 MHz bipolar output transistors
2.2 kVA encapsulated toroid power transformer with independent
secondary windings for each channel
164,000 μF power supply filter capacitance
DC Servo and relay protection circuits
AC present, channel status, high temperature indicators
Heavy-duty 24k gold-plated 5-way speaker terminals
Gold-plated RCA input jacks; ground lift switch
Auto turn-on by 12v trigger or audio signal