Parasound Halo A52+ Five Channel Amplifier

Parasound Halo A52+ Five Channel Amplifier

FEATURES:
 
    	
  • 180 watts RMS x 5 @ 8 Ω
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  • 255 watts RMS x 5 @ 4 Ω
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  • 225 watts RMS x 2 @ 8 Ω
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  • 350 watts RMS x 2 @ 4 Ω
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  • Class A/AB circuitry designed by legendary John Curl
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  • Direct coupled - no capacitors or inductors in audio path ensures the cleanest signal
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  • Balanced XLR inputs with discrete circuits
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  • Full power is rated all the way down to 5Hz for unrestricted low-end bass
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  • Custom 1.5 kVA encapsulated toroid power transformer with independent secondary windings for each channel
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  • Hand-matched JFETs for input stage
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  • Hand-matched MOSFETs for driver stage
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  • Beta-matched 15 amp, 60 MHz bipolar output transistors (3 pairs per channel)
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  • 100,000 µF power supply filter capacitance
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  • DC Servo and relay protection circuits
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  • Auto turn on by audio signal or 12V trigger
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  • Heavy-duty 24k gold-plated, 5-way speaker terminals
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  • 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
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  • Power Output - 2 Channels Driven:   225 watts x 2, 8 Ω;   350 watts x 2, 4 Ω
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  • Power measurements parameters with 120VAC, 0.05% THD, RMS continuous power, full audio band (20 Hz - 20 kHz)
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  • Current Capacity:   45 amperes peak, per channel
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  • Dynamic Headroom:   >1.5dB
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  • Slew Rate:  >130 volts per microsecond
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  • Frequency Response:  5 Hz - 100 kHz, +0/-3 dB;   20 Hz - 20 kHz, +0/-0.3 dB
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  • Total Harmonic Distortion (THD):   < 0.05 % at full power;   < 0.03 % at typical listening levels
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  • IM Distortion:   < 0.04 %
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  • TIM:   Unmeasurable
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  • Interchannel Crosstalk:   >78 dB at 1 kHz;   >63 dB at 20 kHz
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  • Input Impedance:   Unbalanced: 47 kΩ;   Balanced: 94 kΩ, 47 kΩ per leg
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  • Input Sensitivity for 28.28 V Output into 8 Ω:   Unbalanced: 1 V;   Balanced: 1 V per leg 
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  • Total Gain:   29 dB
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  • S/N Ratio:   >112 dB, input shorted, IHF A-weighted;   > 102 dB, input shorted, unweighted
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  • Damping Factor:   >1100 at 20 Hz
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  • DC Trigger Requirements:   +9 Vdc to +12 Vdc, 5 mA
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  • Audio Trigger Requirements:   2 mV - 10 mV
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  • XLR Pin Identification:   1 = Ground (Shield), 2 = Positive, 3 = Negative (Return)
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  • Dimensions (W x D x H):   17.25" x 20" x 5.9"
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  • Weight:   55 lb. (25 kg) Net;   69 lb. (31.3 kg) Shipped
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  • Power Requirement:   Standby: 1 Watt;   Idle: 125 Watts;   Maximum: 1500 Watts
    $2,995.00Price