Parasound(ÆĶó»ç¿îµå) 2ä³Î ÆÄ¿ö¾ÚÇÁ A23 +
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  • Changes from the original A 23¡æA 23+


  •  

     Features 

    Changes from the original A 23¡æA 23+

    ¡¤         125 ¡æ 160 Watts (8¥Ø)

    ¡¤         225 ¡æ 240 Watts (4¥Ø)

    ¡¤         400 ¡æ 500 Watts (bridged)

    ¡¤         Filter cap: 40,000 uF ¡æ54,400 uF

    ¡¤         Crosstalk (20kHz): 63dB ¡æ 70dB

    ¡¤         Transformer size: 1.0 kVA ¡æ 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 ¥Ø RMS, both channels driven

    ¡¤         240 watts x 2 @ 4 ¥Ø RMS, both channels driven

    ¡¤         500 watts x 1 @ 8 ¥Ø, 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 ¥Ø

    ¡¤         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 ¥Ø both channels driven
      240 watts x 2, 4 ¥Ø both channels driven
    • Power Output – Stereo Mode (0.9% THD)
      210 watts x 2, 8 ¥Ø both channels driven
      300 watts x 2, 4 ¥Ø both channels driven
    • Power Output – Bridged Mode (0.06% THD)
      500 watts x 1, 8 ¥Ø
      Bridged 4 ¥Ø operation is not recommended
    • Power Output – Bridged Mode (0.9% THD)
      600 watts x 1, 8 ¥Ø
      Bridged 4 ¥Ø 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 k¥Ø 
      Balanced: 66 k¥Ø,(33 k¥Ø per leg)
    • Total Gain
      29 dB
    • Input Sensitivity for 28.28 V Out (8 ¥Ø 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