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Parasound Halo A 52+ Black 5-Channel Power Amplifier - A52PLUSB
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Abt Model: A52PLUSBLK
UPC: 791084202571
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Parasound A52PLUS Halo A 52+ Black 5-Channel Power Amplifier
The Parasound Halo A 52+ is a five-channel amplifier that delivers exceptional power and performance for your home audio system. Designed with class A/AB circuitry by the legendary John Curl, this amplifier ensures a clean and precise audio signal. With its impressive power output and advanced features, the Halo A 52+ is the perfect choice for audiophiles and home theater enthusiasts.
Features
- 180 watts RMS x 5 @ 8 Ω
- 255 watts RMS x 5 @ 4 Ω
- 225 watts RMS x 2 @ 8 Ω
- 350 watts RMS x 2 @ 4 Ω
- Class A/AB circuitry designed by legendary John Curl
- Direct coupled - no capacitors or inductors in audio path ensures the cleanest signal
- Balanced XLR inputs with discrete circuits
- Full power is rated all the way down to 5Hz for unrestricted low-end bass
- Custom 1.5 kVA encapsulated toroid power transformer with independent secondary windings for each channel
- Hand-matched JFETs for input stage
- Hand-matched MOSFETs for driver stage
- Beta-matched 15 amp, 60 MHz bipolar output transistors (3 pairs per channel)
- 100,000 µF power supply filter capacitance
- DC Servo and relay protection circuits
- Auto turn on by audio signal or 12V trigger
- Heavy-duty 24k gold-plated, 5-way speaker terminals
- 3U chassis with updated cosmetics, rack mountable with HRA3 (sold separately)
California customers:
General
Type
Power Amplifier
Total Harmonic Distortion (THD)
< 0.05 % at full power, < 0.03 % at typical listening levels
Signal to Noise Ratio
> 112 dB, input shorted, IHF A-weighted, > 102 dB, input shorted, unweighted
Power Requirements
Standby: 1 Watt, Idle: 125 Watts, Maximum: 1500 Watts
Frequency Response
5 Hz - 100 kHz, +0/-3 dB, 20 Hz - 20 kHz, +0/-0.3 dB
Intermodulation Distortion (IM)
< 0.04 %
Damping Factor
> 1100 at 20 Hz
Input Impedance
Unbalanced: 47 k Ohms, Balanced: 94 k Ohms, 47 k Ohms per leg
Dynamic Headroom
> 1.5dB
Power Measurement at 120 VAC
0.05% THD, RMS continuous power, full audio band (20 Hz - 20 kHz)
Current Capacity
45 amps peak, per channel
Slew Rate
> 130 volts per microsecond
Inter-Channel Crosstalk
> 78 dB at 1 kHz, > 63 dB at 20 kHz
Total Gain
29 dB
Input Sensitivity for 28.28 V Output into 8 Ohms (Unbalanced)
1 V per leg
Input Sensitivity for 28.28 V Output into 8 Ohms (Balanced)
1 V
XLR Pin Protection
1 = Ground (Shield), 2 = Positive, 3 = Negative (Return)
DC Trigger Requirements
+9 Vdc to +12 Vdc, 5 mA
Audio Trigger Requirements
2 mV - 10 mV
Power Output - All 5 Channels Driven
180 watts x 5, 8 Ohms, A 52+ Features Specs Reviews Support Power Output - All 5 Channels Driven 180 watts x 5, 8 Ω 255 watts x 5, 4 Ohms
Power Output - 2 Channels Driven
225 watts x 2, 8 Ohms, 350 watts x 2, 4 Ohms
Approximate Weight
Unit Weight (lbs.)
55
Shipping Weight (lbs.)
69
Approximate Dimensions
Height (in)
5.88
Width (in)
17.25
Depth (in)
20
Brochure
Key Features
- High Bias Class A/AB Operation
- Beta-Matched 15 Amp, 60 MHz Bipolar Output Transistors (3 Pairs Per Channel)
- DC Servo And Relay Protection Circuits
- Balanced XLR Inputs With Discrete Circuits
- Auto Turn-On By 12v Trigger Or Audio Signal
- Black Finish
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Parasound Halo A 52+ Black 5-Channel Power Amplifier
Parasound Halo A 52+ Black 5-Channel Power Amplifier
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