Parasound Halo A21 Parasound Halo A 21 Two Channel Power Amplifier

This posting is a re-list. Unfortunately, the winning bidder failed to pay. Please serious buyers only.

In my original posting, I did not include photos because I had the product safely stored in the original box. Due to the multiple inquiries from interested buyers who requested photos of the Parasound Halo A21, I removed it from its original box and took these photos.

For those that have asked me about Paypal, this is the information I found on their website regarding fees and who pays them. “PayPal is free whenever you use it to buy something. The seller pays us a small fee to securely handle your payment. As a buyer, you never pay a fee to use PayPal.”

This Parasound Halo A 21 was taken out of its original box, and it was used for no more than the installation set up process. The speakers that were to be used with the Parasound Halo A 21 were never obtained. This is the reason for selling it. The Parasound Halo A 21 is in perfect condition. It comes in the original packaging with all of its contents. It has been kept in a very clean non smoking environment. Please feel free to email if you have any questions.

Thank you.

Features:

Circuitry designed by legendary John Curl
THX Ultra 2 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
16 beta-matched 15 amp, 60 MHz bipolar output transistors
1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel
100,000 µF power supply filter capacitance
DC Servo and relay protection circuits
AC present, channel status, high temperature indicators
Gold-plated RCA input jacks, loop output jacks
Heavy-duty 24k gold-plated 5-way speaker binding posts
Auto turn-on by 12v trigger or audio signal, 12v trigger out
Rear panel gain controls; ground lift switch
4u Chassis; carry handles; rack mounting adapter included

Specifications:

Continuous power output (20 Hz - 20 kHz): 250 watts RMS x 2 at 8 ohms, 400 watts RMS x 2 at 4 ohms, 750 watts RMS x 1 (bridged mono mode) at 8 ohms
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: < 0.04 %
Slew rate: >130 V / µsecond
Dynamic headroom: > 1.5 dB
Interchannel crosstalk: > 80 dB at 1 kHz; > 63 dB at 20 kHz
Input sensitivity: 1 V for 28.28 V, THX Reference Level
Input impedance: 33 k ohm unbalanced; 66 k ohm balanced
S/N ratio: > 112 dB, input shorted, IHF A-weighted
Damping factor: > 1100 at 20 Hz
Voltage: 110V – 120V
Dimensions: 17.25" wide, 7.625" high (7" without feet), 19.12" deep
Net weight: 60 lbs.