Parasound - HALO A31 - Power Amplifier
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ℹ Product Information
Replace Left, Center, Right on your AVR!
Features
- 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
Specifications
- 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: 17-1/2" w x 7-5/8" h x 20" d, 7" h without feet
- Net weight: 65 lb.
