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Parasound Halo A 31 Black 3-Channel Power Amplifier - A31B

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Abt Model: A31BLK UPC: 791084201109
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Under guidelines from the manufacturer, this item is available exclusively through a product specialist in our Glenview store. Please call us at 800-860-3577 for an in-store consultation.
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Parasound A31B Halo A 31 Black 3-Channel Power Amplifier

The Halo A31 by Parasound is a high-performance three-channel power amplifier that delivers exceptional audio quality and power output. Designed with precision and crafted with care, this amplifier is perfect for audio enthusiasts who demand nothing but the best. With its impressive power capacity and versatile connectivity options, the Halo A31 is sure to enhance your audio experience to new heights.


  • 250 watts x 3 @ 8 Ohms / 400 watts x 3 @ 4 Ohms
  • Adjustable gain for up to +6db over THX Reference level
  • Unbalanced RCA and balanced XLR inputs
  • Circuitry designed by legendary John Curl
  • High bias class A/AB operation
  • Direct coupled (no capacitors or inductors in signal path)
  • Complementary MOSFET driver stage and JFET input stage
  • 24 beta-matched 15 amp, 60 MHz bipolar output transistors
  • 1.5 kVA encapsulated toroid power transformer with independent secondary windings for each channel
  • 98,400 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
  • THX Ultra2 certified
  • Auto turn-on by 12v trigger or audio signal
  • 4u Chassis, carry handles, rack mounting adapter included
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