Parasound Halo A 51
Best high performance amplifier for dedicated home cinema enthusiasts.
This powerhouse delivers refined, high-current amplification for demanding home theater systems. By blending the purity of Class A operation with the efficiency of Class AB, it provides a smooth, natural soundstage that remains stable even under heavy loads. It is a serious choice for those seeking reference-grade performance.
$5000.00
at
Audiolab Stereo & Video
More Halo options
Who it's for
- Home theater enthusiasts with large, power-hungry floorstanding speakers
- Cinephiles seeking studio-grade audio fidelity in a dedicated media room
- Audiophiles who prioritize tonal richness and refined musicality
Who should skip it
- Users with limited shelf space or lightweight furniture
- Eco-conscious buyers looking for energy-efficient or cool-running components
- Budget-focused hobbyists building their first multi-channel system
Performance breakdown
Power Delivery
Massive headroom ensures effortless dynamics even with the most demanding speakers.
Sonic Transparency
Hybrid Class A/AB design preserves delicate details with remarkable, natural clarity.
Build Integrity
Heavy-duty construction and massive transformer suggest decades of reliable, stable operation.
Connectivity Versatility
Balanced XLR and RCA inputs accommodate a wide range of pre-amplifiers.
Thermal Management
Robust chassis design effectively dissipates heat during long, high-output listening sessions.
Installation Ease
Its substantial 80-pound weight requires careful planning for rack or shelf placement.
Key Specs
Number of Channels
5
Power Output
250 watts per channel (8 ohms), 400 watts per channel (4 ohms)
Frequency Response
5-100,000 Hz
Signal to Noise Ratio
112 dB
Total Harmonic Distortion
0.03%
Amplifier Class
Class A/AB
Weight
80 lbs
Height
7.625 inches
Rack Mountable
Yes
Bridgeable
No
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