ParaSound Halo A23+ Stereo Power Amplifier

Sale priceRs. 217,000
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Includes GST of Rs. 33,102

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  • Description
  • Specifications
  • Reviews

PARASOUND HALO A23+ 

  • 160 watts x 2 @ 8 Ω RMS, both channels driven
  • 240 watts x 2 @ 4 Ω RMS, both channels driven
  • 500 watts x 1 @ 8 Ω, in bridged mode
  • Circuitry designed by legendary John Curl
  • High bias Class A/AB operation
  • 45 amperes peak current per channel
  • Stable with speaker impedance dips below 2 Ω
  • Balanced inputs with discrete circuits
  • Heavy-duty 24k gold-plated 5-way speaker binding posts
  • Gold-plated RCA input & loop output jacks
  • Direct-coupled signal path, no capacitors or inductors
  • DC Servo and relay protection circuits
  • AC turn-on inrush surge protection with relay bypass
  • JFET input stage, MOSFET driver stage
  • 12 beta-matched 15 ampere, 60 MHz bipolar output transistors
  • 1 kVA shielded toroid transformer w/ independent windings for each channel
  • Independent power supplies for input stage, driver stage and output stage
  • 54,400 µF filter capacitors for output stages
  • Full power is rated all the way down to 5Hz for unrestricted low-end bass
  • Harris hyper-fast soft-recovery bridge diode rectifiers
  • Automatic turn-on by 12 V trigger or audio sensing
  • 2 rack space chassis with rear carry handles
  • Rack mount hardware available separately

 

Power Output -  Stereo Mode (0.06% THD)

  • 160 watts x 2, 8 Ω both channels driven
  • 240 watts x 2, 4 Ω both channels driven

Power Output - Stereo Mode (0.9% THD)

  • 210 watts x 2, 8 Ω both channels driven
  • 300 watts x 2, 4 Ω both channels driven

Power Output - Bridged Mode (0.06% THD)

  • 500 watts x 1, 8 Ω
  • Bridged 4 Ω operation is not recommended

Power Output -  Bridged Mode (0.9% THD)

  • 600 watts x 1, 8 Ω
  • Bridged 4 Ω operation is not recommended

Current Capacity:

45 amps peak, per channel

Slew Rate

> 130 volts per microsecond

Frequency Response

  • 5 Hz - 100 kHz, +0/-3 dB
  • 20 Hz - 20 kHz, +0/-0.25 dB

Total Harmonic Distortion (THD)

  • < 0.06 % at full power
  • < 0.03 % at typical listening levels

Interchannel Crosstalk

  • > 85 dB at 1 kHz
  • > 70 dB at 20 kHz

IM Distortion

< 0.04 %

Total Gain

29 dB

Input Impedance

  • Unbalanced: 33 kΩ
  • Balanced: 66 kΩ,(33 kΩ per leg)

Input Sensitivity for 28.28 V Output into 8 Ω

  • Unbalanced: 1 V
  • Balanced: 1 V per leg

S/N Ratio

  • > 112 dB, input shorted, IHF A-weighted
  • > 107 dB, input shorted, unweighted

Damping Factor

> 800 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)
  • Depth: 15"-1/4" (388 mm)
  • Depth, with cables 17" (432 mm)
  • Height, with feet: 4-1/8" (105 mm)
  • Height, without feet: 3-1/2" (89 mm), 2U

Weight

14.4Kg

Power Requirement

  • Power Requirement
  • Standby: <1 Watt
  • Idle (no music playing): 75 Watts
  • Typical Listening levels: 125 Watts
  • Maximum: 800 Watts
  • 110-125 VAC 60 Hz or 220-250 VAC 50 Hz
  • AC mains voltage is set on rear panel