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Parasound Halo A21 2 Channel Power Amplifier
Product ID: A21
Manufacturer: Parasound
Product UPC Code: : 791084200102
Parasound Halo A21 2 Channel Power Amplifier
List Price: $2,495.00
Price: $2,495.00

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  • Description
  • Specifications
  • Reviews
  •  Circuitry designed by legendary John Curl
  •  THX Ultra2 certified
  •  High bias Class A/AB operation
  •  Balanced inputs with discrete circuits and XLR connectors
  •  Direct Coupled - no capacitors or inductors in signal path
  •  Complementary MOSFET driver stage and JFET input stage
  •  16 beta-matched 15 amp, 60 MHz bipolar output transistors
  •  1.2 kVA encapsulated toroid power transformer with independent
      secondary windings for each channel
  •  100,000 µF power supply filter capacitance
  •  DC Servo and relay protection circuits
  •  AC present, channel status, high temperature indicators
  •  Heavy-duty 24k gold-plated 5-way speaker terminals
  •  Gold-plated RCA input jacks; ground lift switch
  •  Auto turn-on by 12v trigger or audio signal, 12v trigger out
  •  4u Chassis, carry handles, rack mounting adapter included
  •  Parasound 5 year parts, 5 years labor warranty
       (For USA and Canada purchases only)
  • Continuous power output:
            250 watts RMS x 2, 20 Hz - 20 kHz, 8 Ω, all channels driven
            400 watts RMS x 2, 20 Hz - 20 kHz, 4 Ω, all channels driven
            750 watts RMS x 1, 20 Hz - 20 kHz, 8 Ω

            Current capacity:
            60 amperes peak per channel

            Power bandwidth:
            5 Hz - 100 kHz, +0/-3 dB at 1 watt

            Total harmonic distortion:
            < 0.2 % at full power

            IM distortion: balanced 16 V rms
            < 0.04 %

            Slew rate:
            > 130 V/µsecond

            Dynamic headroom:
            > 1.5 dB

            Interchannel crosstalk:
            > 80 dB at 1 kHz;
            > 63 dB at 20 kHz

            Input sensitivity:
            1 V for 28.28 V, THX Reference Level

            Input impedance:
            33 k Ω unbalanced; 66 k Ω balanced

            S/N ratio:
            112 dB, input shorted, IHF A-weighted

            Damping factor:
            > 1100 at 20 Hz

            Voltage:
            110V - 120V

            Dimensions:
            17-1/4" w x 7-5/8" h x 19-1/8" d, 7 " h without feet

            Net weight: 60 lb.
     
    3 Product Reviews - Average rating 5 / 5 (Show All)

    Click to review this product

    Best Buy in Stereo

    - 6/9/2017

    I'm feeding the A21 with the Halo P5 preamp driving Magnepan 1.71 speakers. This system outperforms systems costing many times more. Parasound Halo is an absolute steal. Performance is just outstanding in every respect. The best I've heard in my 40 years of audiophile experience.

    Parasound

    - 2/10/2016

    I've owned three Parasound products and without question they are SOTA. Cost/performance ratio is off the audible chart!

    Exceptional Deal

    - 5/24/2014

    My A21 is phenomenal. I am inspired to listen to more music after this purchase. This paired well with my Marantz pre amp.

    Click to review this product

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