Parasound Halo A31 3-Channel Power Amplifier in Black Finish

“The Halo A31 has a clear, detailed sound that belies its price, combined with just a touch of warmth. This blend of qualities made it a joy to listen to. Add to that its prodigious power output and rock-solid build quality, and I can assure you: It's the real deal."
-Soundstage Access

About this product
Fantastic condition trade-in Parasound Halo A31 3-Channel Amplifier in Black Finish.

Amp comes in original box and packing with power cord and printed manual.

Amp is rated a conservative 8/10 for extremely minor cosmetic wear consistent with age and use.


FEATURES

• 250 watts x 3 @ 8 Ohms / 400 watts x 3 @ 4 Ohms
• Adjustable gain for up to +6db over THX Reference level
• Unbalanced RCA and balanced XLR inputs
• Circuitry designed by legendary John Curl
• High bias class A/AB operation


• Direct coupled (no capacitors or inductors in signal path)
• Complementary MOSFET driver stage and JFET input stage
• 24 beta-matched 15 amp, 60 MHz bipolar output transistors
• 1.5 kVA encapsulated toroid power transformer with independent secondary windings for each channel
• 98,400 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
• THX Ultra2 certified
• Auto turn-on by 12v trigger or audio signal
• 4U Chassis with carry handles

SPECIFICATIONS

• Continuous power output: 250 watts RMS x 3, 20 Hz - 20 kHz, 8 Ω, all channels driven / 400 watts RMS x 3, 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)
• 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


• Dimensions: 17-1/2" w x 7-5/8" h x 20" d, 7" h without feet
• Net weight: 65 lb. Shipping weight: 79 lb

<Covid-19 Update
Paragon has resumed normal shipping operations, though major delivery carriers are still experiencing some delays. Our showroom has re-opened to the public, and we continue to offer curbside service. We thank you for your patience and continued support.

Additional Information
Please call 734.662.3595 and ask for Richard if you have any questions about this product. We make every effort to update our ads quickly when inventory fluctuates, but we encourage you to call and check product availability, as we are also a brick and mortar store.

For a complete listing of all of our specials, please visit: Paragon Pre-Owned & Specials