Parasound Halo A 51 Five Channel Power Amplifier

Description

MY TAKE:
 

For more than twenty years Parasound has been a name synonymous with unequaled value. Their electronics are respected for both performance and reliability, and compete with significantly more expensive products. Modestly priced, previous offerings have changed common perception about the level of performance that can be achieved at the price point.

With the introduction of the Halo line, Parasound looks to bring the same level of value and performance to a more upscale market. The ambitious Halo range spans the gamut from state of the art home theater offerings to high end two-channel audio.

For a number of years, the legendary John Curl has worked with Parasound as a consultant. His input has greatly influenced their products and is one of reasons for the praise they’ve received from the audiophile community.

The A 51 five channel power is equally at home reproducing the full scale dynamics of home theater or the subtlety and refinement required for music. - Galen Carol


FEATURES:
 

• 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
• Auto turn-on by 12v trigger or audio signal
• Gold-plated RCA input jacks; ground lift switch
• Available in Silver or Black
• Backed by Parasound's Five Year Warranty

SPECIFICATIONS:
 

• Continuous power output: • 250 watts RMS x 5, 20 Hz - 20 kHz, 8 ohm, all channels driven, 400 watts RMS x 5, 20 Hz - 20 kHz, 4 ohm, all channels driven
• Current capacity: 60 amperes peak per channel
• Slew rate: > 130 V/second
• Dynamic headroom: > 1.5 dB
• Input sensitivity: 1 V for 28.28 V, THX Reference Level
• Input impedance: 47 k ohm unbalanced; 94 k ohm balanced
• Dimensions: 17-1/4" w x 7-5/8" h x 20" d, 7" h without feet