Parasond Halo A23+ Stereo Power Amplifier B-Stock Full Warranty

Save 16%
$1,495.00
$1,249.99

SKU A23+SilverB
Product Ships in 3 to 5 Days
PARASOUND B-STOCK
  • 100% WORKING CONDITION
  • THOROUGHLY INSPECTED
  • ORIGINAL PACKAGING + ALL ACCESSORIES
  • FULL MANUFACTURER'S WARRANTY
  • Parasond Halo A23+ Stereo Power Amplifier B-Stock Full Warranty


    Changes from the original A 23→A 23+

    • 125 → 160 Watts (8Ω)
    • 225 → 240 Watts (4Ω)
    • 400 → 500 Watts (bridged)
    • Filter cap: 40,000 uF →54,400 uF
    • Crosstalk (20kHz): 63dB → 70dB
    • Transformer size: 1.0 kVA → 1.1 kVA
    • Refined Halo cosmetic with aluminum end caps & gold highlights
    • Updated rear panel with heavy duty speaker terminals from HINT 6
    • Upgraded internal gold on gold audio connections
    • Updated auto turn on circuit

    All Features

      • 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
      • 1.1 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
      • Available in silver or black
    Specs
    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

    *All Power measurement are at 120 VAC,
    RMS continuous power, full audio band (20 Hz - 20 kHz)

    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

    IM Distortion
    < 0.04 %

    TIM
    Unmeasurable

    Inter-channel Crosstalk
    > 85 dB at 1 kHz
    > 70 dB at 20 kHz

    Input Impedance
    Unbalanced: 33 kΩ
    Balanced: 66 kΩ,(33 kΩ per leg)

    Total Gain
    29 dB

    Input Sensitivity for 28.28 V Out (8 Ω Load)
    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

    Net Weight
    27 lb. (12.2 kg)

    Shipping Weight
    34 lb. (14.4 kg)

    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

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