Parasound - HALO A52+ - Power Amplifier
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ℹ Product Information
A killer addition to your AVR - Especially for Atmos!
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)
Specifications
- Power Output - All 5 Channels Driven: 180 watts x 5, 8 Ω, 255 watts x 5, 4 Ω
- Power Output - 2 Channels Driven: 225 watts x 2, 8 Ω, 350 watts x 2, 4 Ω
- Power measurements parameters with 120VAC: 0.05% THD, RMS continuous power, full audio band (20 Hz - 20 kHz)
- Current Capacity: 45 amperes peak, per channel
- Dynamic Headroom: >1.5dB
- Slew Rate: > 130 volts per microsecond
- Frequency Response: 5 Hz - 100 kHz, +0/-3 dB; 20 Hz - 20 kHz, +0/-0.3 dB
- Total Harmonic Distortion (THD): < 0.05 % at full power, < 0.03 % at typical listening levels
- IM Distortion: < 0.04 %
- TIM: Unmeasurable
- Interchannel Crosstalk: > 78 dB at 1 kHz, > 63 dB at 20 kHz
- Input Impedance: Unbalanced: 47 kΩ, Balanced: 94 kΩ, 47 kΩ per leg
- Input Sensitivity for 28.28 V Output into 8 Ω: Unbalanced: 1 V, Balanced: 1 V per leg Total Gain: 29 dB
- S/N Ratio: > 112 dB, input shorted, IHF A-weighted; > 102 dB, input shorted, unweighted
- Damping Factor: > 1100 at 20 Hz
- DC Trigger Requirements: +9 Vdc to +12 Vdc, 5 mA
- Audio Trigger Requirements: 2 mV - 10 mV
- XLR Pin Identification: 1 = Ground (Shield), 2 = Positive, 3 = Negative (Return)
- Dimensions: Width: 17-1/4" (437 mm), Height without feet: 5-1/4" (133 mm), Height with feet: 5-7/8" (149 mm), Depth: 20" (508 mm), Depth with cables: 21-1/4" (540 mm)
- Net Weight: 55 lb. (25 kg)
- Power Requirement: Standby: 1 Watt, Idle: 125 Watts, Maximum: 1500 Watts
