Parasound Halo A21 Stereo Amplifier

"I could not only recommend the A21 enthusiastically to audiophiles on a budget, but could live with it myself in a system that costs fifty times what it does."

 

 

FEATURES:

 

 

  • 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)

     

 

SPECIFICATIONS:

 

 

  • Continuous power output:250 watts RMS x 2, 20 Hz - 20 kHz, 8 Ω, all channels driven400 watts RMS x 2, 20 Hz - 20 kHz, 4 Ω, all channels driven750 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.

    $2,495.00Price
    Finish