Parasound Halo A52+ Five Channel Amplifier

Parasound Halo A52+ Five Channel Amplifier

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 (W x D x H):   17.25" x 20" x 5.9"
  • Weight:   55 lb. (25 kg) Net;   69 lb. (31.3 kg) Shipped
  • Power Requirement:   Standby: 1 Watt;   Idle: 125 Watts;   Maximum: 1500 Watts
    $2,995.00Price