Description

Circuitry designed by the 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
•  Parasound 5 year parts, 5 years labor warranty
  
     (For USA and Canada purchases only)

HomeTheaterReview.com
When it comes to high-performance, high-value power amplifiers, few do it better than
Parasound. The A51, which is part of Parasound’s Halo line of cost-no-object products
designed in tandem with audio legend John Curl, has benchmark levels of performance,
yet costs a reasonable $4,500. Cost no object, huh? If every manufacturer built
sub-$5,000 cost-no-object products, the audiophile landscape would be vastly different.

Audioholics, October 2004

"The A 21 and A 51 amplifiers are both loaded with usable features above and
beyond most other amplifiers in today’s market." "The Parasound A 51 is
more than capable of driving any speaker load in even the most demanding home
theater systems." "The linearity of this amplifier is excellent at any power
level it is operating in, and its freedom from audible noise and distortion
makes it a true winner!" "The Parasound Halo A 21 and A 51 are top rate
amplifiers at a great value. Parasound seems to have attended to every aspect
of their design including the excellent build quality internally and externally
matched with great looks." Overall Rating: 5/5 Stars – Ken Stein and Steve
Dellasala