Parasound(파라사운드) 5채널 파워앰프 A52+
상품분류 파워앰프 (Power Amplifier)
제조사 Parasound(파라사운드)
총평점 -  [사용기 작성]
판매가 4,790,000원
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A 52+

    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)

 

 (Click to enlarge)

   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