Parasound HCA-1200II HCA1200 II Stereo Power Amplifier Price: $1,119.99 + $78.99 flat-rate ground shipping to US mainland states only Description:Preowned, seller reconditioned -- see NOTES belowTested / serviced to ensure unit is in very satisfactory working orderIn very good cosmetic condition with light wear and signs of age -- some scuffs and marks shown in our picturesExactly as seen in picturesAn electronic copy of the users manual will be provided to the buyer upon completion of sale, if requestedGreat amps but they need some renewal due to their ageAll worked performed by the techs at MC Mobile, Thousand Oaks, CASix month parts and labor warranty NOTES: 1. Amp developed problems due to age -- a repair attempt was made by another shop that installed fake parts which created additional problems2. We corrected a short in the power supply that was blowing the line fuse, and we replaced the fuse3. We repaired internal voltage regulators, so that all internal voltages are correct4. We replaced capacitors, resistors, BJ Ts, FETs, and repaired a couple opens caused by poor soldering technique 5. Multiple new output transistors were replaced with matching oriignals purchased from a reputable US supplier6. New power MOSFETs were installed from our stock and a reputable US supplier7. Bias was set so crossover distortion was not visible on our scope up to 20 kHz (crossover distortion minimized)8. DC offset was checked and is 1 mV or less per channel9. Bridging function was checked10. We checked flatness from 100 Hz to 10 kHz, and the channels were flat to within 5%11. After service, measured power output at 1 kHz into 8 Ohms, one channel driven, is 213 W RMS for the left channel & 215 W RMS for the right channel at clip.12. Total bridged power was more than 640 Watts RMS at 1 kHz into 8 Ohms at the onset of clipping13. A great sounding amp, a John Curl design, with JFET input stages & power MOSFET drivers for the BJT outputs Special Features per the manufacturer: • THX certified by Lucasfilm Ltd. • Massive 1kVA power transformer sources 200 W RMS per channel into 8 Ohms • 60,000µF computer-grade capacitors in power supply • Multiple polystyrene film bypass capacitors in power supply • Cascode Class A input stages with matched J-FET pairs • Hand picked MOSFETs in high voltage driver stage • 10 pairs of 50MHz, 15 ampere bipolar output transistors • Output transistors direct-coupled to speakers without LRC network • DC servo direct-coupled audio circuits with 3Hz roll off • Linear tracking, instantaneous-acting DC servos • High-bias Class AB operation • Gold-plated metal structure RCA input jacks • Multiple temperature sensors and silver-cadmium relay protection • FR-4 glass epoxy circuit boards, double-sided for precision • Proprietary quick-settling bias circuit obviates warmup period• AC power cord included

This auction is for a Parasound HCA-1200 Amp, in great working condition, both channels tested at all volumes. There are scratches on the top of the amp. Please refer to pictures. Amp will be backed well and double boxed. Thank you for stopping by. Whats in the box -Just the Parasound amp.Test speaker or iPad in the picture are not included in this auction. Original manual is missing. A printed manual is included. U.S. auction only. HCA-1200 Manufacture Specifications : Continuous Power output - stereo 200 watts RMS x 2, 20Hz-20kHz, 8 ? 300 watts RMS x 2, 20Hz-20kHz, 4 ? Continuous Power output - mono 600 watts RMS, 20Hz-20kHz, 8 ? 600 watts RMS, 20Hz-20kHz, 4 ? Current Capacity -40 amperes continuous 57 amperes peak, up to 200msec. Slew Rate 100V/µsecond Frequency response 8Hz-90kHz, +0/-3dB Total Harmonic Distortion -< 0.08% at full power < 0.03% typical levels TIM Unmeasurable IM distortion < 0.1% Dynamic Headroom > 1.5dB Input impedance 30 k? S/N ratio >110dB, input shorted, IHF A weighted Damping factor Over 120 at 20Hz Dimensions 17 1/4 wide x 5 1/2 high x 12 deep; 19 wide using RMK-1000 rack mount Weight 38 lbs. Special Features •1kVA toroid power transformer •60,000µfd gold capacitors in power supply •60MHz output transistors, in AB mode •Cascode Class A J-FET input stage - 7 - •Linear Hi-Z FET driver stage •Gold-plated input jacks •Multiple relay protection •Mono bridgeable

ONE OWNER JOHN CURL DESIGNED PARASOUND HCA 1200 MK II 205 WATTS PER CHANNEL THX STEREO AMPLIFIER EXCEIIENT CONDITION. THE UNIT WAS SERVICED BY DELTRONICS ELECTRONICS IN CHICAGO AND UPGRADED WITH NEW CAPACITORS THREE YEARS AGO. IT COMES FROM A CLEAN SMOKE AND PET FREE HOME.