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Power Amplifiers : Parasound Halo JC1 THX Ultra2 400w Mono Block Amplifier The JC 1 Monaural Amplifier might possibly be the world's finest power amplifier. Parasound, John Curl and CTC Builders collaborated in the design of this amplifier to create a new standard for elegance, sonic precision and value. The JC 1 provides 400 watts into 8 ohms with 135 amps of peak current. Its 25 watts of pure Class A power is user-switchable to 10 watts of Class A power when heat dissipation is a concern. Other features include balanced XLR or unbalanced RCA connectors, a 12v trigger, an audio sensitivity trigger, adjustable turn-on delay, and a ground lift switch. Advanced circuitry, premier parts selection, unequaled sound quality, and stunning design are bound to make this amplifier a legend in its own time. JC 1 Features: Premier monaural amplifier Designed by legendary John Curl and CTC Builders Ultra-high bias Class A/AB operation Exclusive two position bias level adjustment Balanced input with discrete circuitry and Neutrik XLR connector Vampire Direct gold-plated OFC RCA input Dual heavy-duty 24k gold-plated 5-way speaker binding posts Direct Coupled - no capacitors or inductors in signal path Complementary discrete JFET input stage and MOSFET driver stage 18 beta-matched 15 amp, 60 MHz bipolar output transistors 1.9 kVA encapsulated toroid power transformer Independent power supplies for input, driver and output stages 18,000 µF filters for driver stage 132,000 µF Nichicon 'Gold Tune' filters for output stage REL and Nichicon 'Muse' capacitors Harris hyper-fast soft recovery diodes for all bridge rectifiers DC Servo and relay protection circuits Auto turn-on by 12v trigger or audio signal trigger Ground lift switch, adjustable turn-on delay 4u chassis with rear carry handles, rack mount kit included Premium detachable AWG 12 power cord with silver solder THX Ultra2 certified Parasound's 10 years parts, 5 years labor warranty JC 1 Specs: Continuous power output, 20 Hz- 20 kHz: 400 watts RMS x 1, 8W 800 watts RMS x 1, 4W 1200 watts RMS x 1, 2W Class A power output, 20Hz – 20 kHz: 25 watts, bias set to high, 8W 10 watts, bias set to low, 8W Current capacity: 135 amperes peak Power bandwidth: 2 Hz - 120 kHz, +0/-3 dB at 1 watt Total harmonic distortion: < 0.15 % at full power IM distortion: < 0.03 % Slew rate: >130 V/µsecond Dynamic headroom: > 1.8 dB Input sensitivity: 1 V for 28.28 V output, THX Reference Level Input impedance: 100 k W S/N ratio: >120 dB, IHF A-weighted, bias set to high >122 dB, IHF A-weighted, bias set to low Damping factor: > 1200 at 20 Hz Power requirement: 250 watts, idle 1280 watts, full power into 4W DC trigger output capacity: +12 Vdc, 150 mA Dimensions: 17-1/4" w x 7-5/8" h x 20" d, 7" h without feet Net weight: 64 lbs. This item is only available to our South Florida customers at our West Palm Beach showroom. No internet / mail order sales unless otherwise indicated.     ID: JC1 Visit our showroom or  Email   us about this item! $4,500.00