Parasound A21 Amplifier

Great Shape-Low Hours-Ready To Roll
Circuitry designed by legendary John Curl
THX Ultra 2 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
16 beta-matched 15 amp, 60 MHz bipolar output transistors
1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel
DC Servo and relay protection circuits
AC present, channel status, high temperature indicators
Gold-plated RCA input jacks, loop output jacks
Heavy-duty 24k gold-plated 5-way speaker binding posts
Auto turn-on by 12v trigger or audio signal, 12v trigger out
Rear panel gain controls; ground lift switch
4u Chassis; carry handles; rack mounting adapter included