WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.p65warnings.ca.gov

Parasound Halo A52+ Halo 5 Channel Power Amplifier

UPC: 791084202571
$2,995.00

SKU A52+

Product Qualifies for FREE Ground Shipping

  • 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)
  • Specs
    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)

    Shipping Weight
    69 lb. (31.3 kg)

    Power Requirement
    Standby: 1 Watt
    Idle: 125 Watts
    Maximum: 1500 Watts

      California customers: Please click here for your Proposition 65 warning.

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