Parasound Halo JC 1 Plus Power Amplifier

FEATURES

• 25 watts of pure Class A power
• Stable with speaker impedance dips below 1Ω
• Bybee Music Rails™ - active high frequency filters for input stage
• New John Curl driver stage employs a cascode circuit for greater open loop bandwidth & superior linearity
• Gain switch to select 29 dB or 23 dB gain for optimum compatibility with high gain preamps or extremely efficient speakers
• R-core transformer for input stage suppresses noise on power line
• 6 massive 33,000 uF Nichicon Gold Tune filter capacitors for output stage
• 22,400 uF input stage power supply filter capacitors, independent of the main power supply
• Dual CHK Infinium, custom 5-way speaker binding posts for easy bi-wiring
• Neutrik locking XLR balanced input & loop output jacks
• Vampire 24k gold-plated RCA input & loop output jacks 
• Direct-coupled signal path, no capacitors or inductors in the audio path
• JFET input stage, MOSFET driver stage
• 24 beta-matched 15 ampere, 230V, 60 MHz bipolar output transistors
• 2.1 kVA shielded toroid power transformer with premium H18 grade core
• Independent power supplies for input stage, driver stage & output stage
• Full power is rated all the way down to 2Hz for unrestricted low-end bass
• Harris hyper-fast soft-recovery bridge diode rectifiers
• REL & Nichicon Muse capacitors
• DC servo & relay protection circuits
• AC turn-on inrush surge protection with relay bypass
• Automatic turn-on by 12 V trigger or audio sensing
• 4 rack space chassis with rear carry handles
• Rack mount hardware is included
• Available in silver or black

SPECIFICATIONS

• Dimensions: Height without feet: 7-1/8" (181 mm), Height with feet: 7-3/4" (197 mm), Depth: 20" (508 mm), Depth with cables: 21-1/2" (546 mm) 
• Net Weight: 83 lb. (37.6 kg)
• Power Output: 450 x1 watts @ 8 Ω, 850 x1 watts @ 4 Ω, 1300 x1 watts @ 2 Ω 
• Power measurements are with 120 VAC: 0.15% THD, RMS continuous power, full audio band (20 Hz - 20 kHz) 
• Class A Power Output: 25 Watts, bias switch set to high, 10 Watts, bias switch set to low 
• Current Capacity: 180 amps, peak Slew Rate > 130 volts per microsecond 
• Frequency Response: 2 Hz - 120 kHz, +0/-2 dB, 20 Hz - 20 kHz, +0/-0.25 dB 
• Total Harmonic Distortion (THD): < 0.15 % at full power, < 0.02 % at typical listening levels