A 21

• 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

• 16 beta-matched 15 amp, 60 MHz bipolar output transistors

• 1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel

• 100,000 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, 12v trigger out

• 4u Chassis, carry handles, rack mounting adapter included

General
General	17-1/2" w x 7-5/8" h x 20" d, 7" h without feet

• A 21

• Halo Brochure - Screen version

• Halo Brochure - Print version

• Parasound Amp BTU Ratings

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