SKU: 53882018338

Parasound Halo A51 Amplifier

Sale price$3307.50 Regular price$3675.00
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

Parasound Halo A51 AmplifierBring the Cinematic Experience Home Add the A51 to your home theater and watchor listeneverything transform. This fivechannel amp effortlessly boosts your AVR, powering your front and surrounds with clean, room filling performance that punches well above its price. Designed by John Curl, the A51 runs highbias Class A AB in a directcoupled topology for maximum clarity. It delivers 250 W x5 into 8 (400 W x5 into 4 ) with THX Ultra2 certification, fed by

Bring the Cinematic Experience Home

Add the A51 to your home theater and watch—or listen—everything transform. This five‑channel amp effortlessly boosts your AVR, powering your front and surrounds with clean, room-filling performance that punches well above its price.

Designed by John Curl, the A51 runs high‑bias Class A/AB in a direct‑coupled topology for maximum clarity. It delivers 250 W x5 into 8 Ω (400 W x5 into 4 Ω) with THX Ultra2 certification, fed by a 2.2 kVA toroidal transformer and 164,000 µF of filter capacitance for clean current on demand. Balanced XLR and RCA inputs make it a drop‑in upgrade for any AVR/processor with pre‑outs.

Praised by audiophiles and reviewers alike:

  • “Midrange was totally seductive…with music, the A51 radiated sweetness and light. With action films, it rained thunder and lightning.”  Sound & Vision (Barry Willis)
  • “Benchmark levels of performance at a reasonable price.”  Home Theater Review
  • “More than capable of driving any speaker load…a true winner!”  Audioholics

Specifications: 

Power Output - All Channels Driven

250 watts RMS x 5, continuous, 20 Hz - 20 kHz 8Ω
400 watts RMS x 5, continuous, 20 Hz - 20 kHz, 4Ω

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:
17-1/2" w x 7-5/8" h x 20" d, 7" h without feet

Net weight: 80 lb.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 53882018338

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Mel W.
Charlottesville, US
★★★★★ 4
It's okay. Better for dry skin.
Size: 1.7 Fl Oz (Pack of 1)
It's a nice product but still too greasy for my poor skin. It's pretty moisturizing. It isnt thick, but my skin gets greasy quickly with it. (I prefer Australian Gold tinted (the big tube meant for the body, not face).
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Reviewed in the United States on March 18, 2026
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Kylee Clarkston
Charlottesville, US
★★★★★ 3
Greasy on face
Size: 1.7 Fl Oz (Pack of 1)
Feels greasy when you put it on.
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Reviewed in the United States on April 18, 2026
M
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Maya Dalton
Omaha, US
★★★★★ 5
Just like the other but better!
Size: 1.7 Fl Oz (Pack of 1)
I love the regular mineral face sunscreen so wanted to try the new liquid face sunscreen! It seems to be the same formula but way easier to apply. Applies more like a moisturizer and easy to run in! It still has the same protection and reliability!! Sunbum will always be a favorite!
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Reviewed in the United States on August 23, 2025
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A
Cuba, US
★★★★★ 5
A Sensitive Skin Must
Size: 1.7 Fl Oz (Pack of 1)
Very smooth and easy to rub in. No white cast. Great for sensitive skin. Daughter has eczema and I have rosacea, we both use this sunscreen without any issues.
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Reviewed in the United States on March 22, 2026
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that Kelly girl
Whiting, US
★★★★★ 5
Does well on my sensitive skin
Size: 1.7 Fl Oz (Pack of 1)
This is a good sunscreen, doesn't bother my sensitive skin or cause a roseacea flare up. It is a bit too dewy for my taste to wear just by itself, but does just fine when I use it under my makeup. If you like the "glass skin" look, it would be a good option.
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Reviewed in the United States on October 26, 2025

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