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Parasound Halo Amplifier-Black

Model #: A 51
At a Glance

Parasound Halo Amplifier-Black with balanced inputs with discrete circuits and XLR connectors

Available in Store Only
$4,999.00Save $NaN

Get to know this product.

  • 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 F 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


Power On Consumption (watts):3000
Signal to Noise Ratio:112 dB
Watts RMS per Channel (4-ohms):400
Watts RMS per Channel (8-ohms):250



Misc. Specs

Depth (in.)20
Height (in.)7.63
Impedance94 Ohms
Width (in.)17.25
Analog Audio(RCA) Input5
Product Weight80
WarningProposition 65 Warning for California Residents