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Parasound Halo A31 Legacy Cosmetics Three Channel Power Amplifier

UPC: 791084211009
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$3,295.00
$2,995.00

SKU A31Black

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Parasound Halo A31 Legacy Cosmetics Three Channel Power Amplifier


The A 31 was developed for Parasound customers who want their surround systems to include uncompromised reproduction of stereo music. The A 31 is ideal for this because it also provides matched amplification for the center channel speaker. Here are some of the practical applications for the A 31: Powering the C, LS, and RS channel speakers when a separate two-channel amplifier (or pair of monoblocks) is used for the L and R channel speakers. For L, C and R “one wall” theater systems without surround speakers. Powering the LS, RS and single back channel speaker in a 6.1 system.
Specs
  •  250 watts x 3 @ 8 Ohms / 400 watts x 3 @ 4 Ohms
  •  Adjustable gain for up to +6db over THX Reference level
  •  Unbalanced RCA and balanced XLR inputs
  •  Circuitry designed by legendary John Curl
  •  High bias class A/AB operation
  •  Direct coupled (no capacitors or inductors in signal path)
  •  Complementary MOSFET driver stage and JFET input stage
  •  24 beta-matched 15 amp, 60 MHz bipolar output transistors
  •  1.5 kVA encapsulated toroid power transformer with independent
      secondary windings for each channel
  •  98,400 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
  •  THX Ultra2 certified
  •  Auto turn-on by 12v trigger or audio signal
  •  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 3, 20 Hz - 20 kHz, 8 Ω, all channels driven
            400 watts RMS x 3, 20 Hz - 20 kHz, 4 Ω, all channels driven

            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:
            > 78 dB at 1 kHz;
            > 63 dB at 20 kHz

            Input sensitivity:
            1 V for 28.28 V (THX Reference)

            Input impedance:
            47 k Ω unbalanced; 94 k Ω balanced

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

            Damping factor:
            > 1100 at 20 Hz

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

            Net weight: 65 lb.

            Shipping weight: 79 lb.

      California customers: Please click here for your Proposition 65 warning.

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