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Parasound Halo A 51 Black Amplifier - A51B
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Abt Model: A51BLK
UPC: 791084200119
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Parasound A51B Halo A 51 Black Amplifier
The Halo A 51 from Parasound is a high-performance power amplifier that delivers exceptional audio quality and power for your home entertainment system. Designed in collaboration with renowned audio engineer John Curl, this amplifier is part of Parasound's Halo line of cost-no-object products. With its benchmark levels of performance and reasonable price of $4,500, the Halo A 51 offers audiophiles a truly remarkable amplifier at an accessible price point.
Features
- Circuitry designed by legendary John Curl
- THX Ultra2 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
- 40 beta-matched 15 amp, 60 MHz bipolar output transistors
- 2.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel
- 164,000 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
- Gold-plated RCA input jacks; ground lift switch
- Auto turn-on by 12v trigger or audio signal
- 4u Chassis, carry handles, rack mounting adapter included
California customers:
General
Type
Amplifier
Total Harmonic Distortion (THD)
< 0.2 % at full power
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
Intermodulation Distortion (IM)
< 0.04 %
Damping Factor
> 1100 at 20 Hz
Input Sensitivity
1 V for 28.28 V, THX Reference Lev
Input Impedance
47 k Ohms unbalanced; 94 k Ohms balanced
Dynamic Headroom
> 1.5dB
Bandwith
5 Hz - 100 kHz, +0/-3 dB at 1 watt
Current Capacity
60 amps peak, per channel
Slew Rate
> 130 V/second
Inter-Channel Crosstalk
> 78 dB at 1 kHz;, > 63 dB at 20 kHz
Voltage
110V - 120V
Approximate Weight
Unit Weight (lbs.)
80
Shipping Weight (lbs.)
95
Approximate Dimensions
Height (in)
7.63
Width (in)
17.5
Depth (in)
7
Guides
Brochure
Key Features
- High Bias Class A/AB Operation
- 40 Beta-Matched 15 Amp, 60 MHz Bipolar Output Transistors
- DC Servo And Relay Protection Circuits
- AC Present, Channel Status, High Temperature Indicators
- Auto Turn-On By 12v Trigger Or Audio Signal
- Black Finish
Guides
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