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Parasound Halo A 51 Black Amplifier - A51B

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Abt Model: A51BLK UPC: 791084200119
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Your Price: $5,999.00
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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 A51B Halo A 51 Black Amplifier

The Halo A 51 from Parasound is a high-performance power amplifier that delivers exceptional audio quality and power for your home entertainment system. Designed in collaboration with renowned audio engineer John Curl, this amplifier is part of Parasound's Halo line of cost-no-object products. With its benchmark levels of performance and reasonable price of $4,500, the Halo A 51 offers audiophiles a truly remarkable amplifier at an accessible price point.


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