ParasoundA-51usedParasound A-51 5 Channel Power AmplifierUp for sale is a Parasound Halo A-51 5-Channel Power Amplifier. The unit was a customer return after a few days. Great condition! Very light use. Includes everything pictured including Full warran...3529.99

Parasound A-51 5 Channel Power Amplifier

Listing ID: lis8j683 Classified 
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Condition
9/10
Payment methods
Ships fromFairless Hills, PA, 19030
Ships toUnited States
Package dimensionsunspecified
Shipping carrierFedEx
Shipping costFree
Original accessoriesBox, Manual
AverageResearch Pricing

Up for sale is a Parasound Halo A-51 5-Channel Power Amplifier. The unit was a customer return after a few days. Great condition! Very light use. Includes everything pictured including Full warranty. This item retails NEW for $4,795!

Parasound's five-channel Halo A51 power amplifier combines raw power with elegant circuit design. Designed by legendary audio guru John Curl in collaboration with CTC Builders, the Halo brings uncompromising audiophile performance to home theater.

THX Ultra 2 certification ensures movie-house quality sonics, but the Halo surpasses this critical benchmark by delivering Parasound-quality sound derived from the ultra-high-end Parasound JC-1 400-watt mono amp. Matched JFET inputs, MOSFET drivers, and high-current bipolar outputs contribute to its exceptional performance.

The A51 boasts balanced inputs with discrete circuits and XLR connectors. Beautifully implemented high-bias Class A / AB operation makes the most of an impressive 250-watt-per-channel power output at 8 ohms and 400-watts-per-channel at 4 ohms. The 2.2 kVA encapsulated toroidal power transformer with independent secondary windings for each channel and 164,000 µF power supply filter capacitance delivers an impressive current capacity of 60 amps per channel. The direct-coupled design uses no capacitors or inductors in signal path. The complementary MOSFET driver stage relies on the firepower of 40 beta-matched 15 amp, 60 MHz bipolar output transistors and works in combination with a JFET input stage.

Like all the other amps in the Halo product series, the A51 has Parasound's exclusive bias circuit, which permits the amplifier to sound perfect from the instant it's turned on, rather than having to wait for bias to gradually build up as the amp warms up over time. Very high bias allows greater Class operating range than others. Even Halo's implementation of its automatic turn-on feature is exceptional. Special relays bypass the AC "soft start" circuitry after it's done its job for the purest AC and the purest sound.

Specifications:
Continuous power output: 250 watts RMS x 5, 20 Hz - 20 kHz, 8 Ω, all channels driven; 400 watts RMS x 5, 20 Hz - 20 kHz, 4 Ω, all channels driven
Current capacity: 60 amperes peak per channel
Power bandwidth: 5 Hz - 100 kHz, +0/-3 dB at 1 watt
Total harmonic distortion: < 0.2 % at full power
IM distortion: balanced 16 V rms < 0.04 %
Slew rate: > 130 V/µsecond
Dynamic headroom: > 1.5 dB
Interchannel crosstalk: > 78 dB at 1 kHz; > 63 dB at 20 kHz
Input sensitivity: 1 V for 28.28 V, THX Reference Lev
Input impedance: 47 k Ω unbalanced; 94 k Ω balanced
S/N ratio: 112 dB, input shorted, IHF A-weighted
Damping factor: > 1100 at 20 Hz
Voltage: 110V - 120V
Dimensions (WxHxD): 17-1/2" x 7-5/8" x 20"
Weight: 80 lbs.

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Return Policy

Return Window

Item can be returned within 30 days of receipt.

General Terms

Items must be returned in their original condition, with all included packing materials and no signs of use. Buyer assumes responsibility for all shipping return costs unless the item was not received as described.

Refunds

Buyer will receive a full refund in the original payment method less any shipping charges.