Parasound Halo A52+ Five Channel Amplifier
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)
SPECIFICATIONS:
- 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 (W x D x H): 17.25" x 20" x 5.9"
- Weight: 55 lb. (25 kg) Net; 69 lb. (31.3 kg) Shipped
- Power Requirement: Standby: 1 Watt; Idle: 125 Watts; Maximum: 1500 Watts
$2,995.00Price