Garden Grove, CA, United States
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Pioneer SX-1280 185WPC Monster Receiver – Professionally Restored – 1-Year WarrantyProfessionally Restored by HQaudios – Fully Tested & Calibrated – Backed by Our 1-Year WarrantyThe Pioneer SX-1280 is one of the most desirable high-power receivers from the golden era of Japanese Hi-Fi.Rated at an impressive 185 watts per channel into 8 ohms, the SX-1280 belongs to the elite group of 1970s receivers enthusiasts commonly call “Monster Receivers.” With its massive chassis, illuminated dial, analog power meters, brushed aluminum faceplate, substantial power supply and unmistakable Pioneer styling, it remains a centerpiece-level component for serious vintage audio systems.Positioned near the top of Pioneer’s legendary receiver lineup, the SX-1280 is exceeded in rated output only by the SX-1980 among Pioneer’s best-known monster receivers. Clean examples are highly sought after, and properly restored units with strong cosmetics and documented service are becoming increasingly difficult to find.This particular SX-1280 has undergone a comprehensive professional restoration by HQaudios, including electronic service, recapping, calibration, tuner service, control cleaning, cosmetic restoration and final testing.It is ready to be installed and enjoyed.KEY HIGHLIGHTS185 Watts Per Channel into 8ΩLegendary Pioneer “Monster Receiver”Professionally restored and servicedPower supply and signal path recappedPower supply capacitors renewedBias and DC offset calibratedFM/AM tuner serviced and realignedControls and switches professionally cleanedNew blue dial illuminationWood veneer professionally refinishedAluminum faceplate and knobs detailedFully tested across inputs and outputs1-Year Technical WarrantyActual receiver shown in the photosPROFESSIONAL ELECTRONIC RESTORATIONThis SX-1280 received extensive service intended to address common age-related issues while preserving the character of the original Pioneer design.Work performed includes:Electrolytic capacitors in the power supply and signal path replaced with quality modern componentsPower supply capacitors renewed for stable voltage deliveryPower supply circuitry inspected and servicedTransistors inspected and weak or failing devices replaced where necessaryHeat-stressed and questionable solder joints inspected and reflowed as requiredMajor circuit assemblies inspected for heat damage, oxidation and age-related deteriorationLeft and right amplifier channels checked for proper operationFull audio signal path testedPhotos of removed components are included as additional documentation of the restoration work.CALIBRATION & PERFORMANCE TESTINGAfter service, the receiver was carefully checked and calibrated.Bias adjustedDC offset checked and calibratedBoth amplifier channels testedInputs and outputs verifiedSignal path tested for clean, balanced audioProtection operation checkedFinal operating stability verifiedThe goal was not simply to make the receiver power on, but to prepare it for reliable everyday enjoyment.TUNER & CONTROL SERVICEFM/AM tuner inspected and realignedFM stereo operation verifiedPotentiometers professionally cleanedSwitches and selectors cleanedControls lubricated where appropriateSignal contacts checked for clean operationCOSMETIC RESTORATIONThis receiver also received extensive cosmetic attention.Wood veneer side panels carefully sanded, re-stained and re-sealedAluminum faceplate professionally cleaned and detailedKnobs individually cleaned and polishedExterior metal surfaces detailedBlue dial illumination renewed with quality replacement lightingComplete exterior cleaned before final photographyThe result is a beautiful presentation worthy of such an important Pioneer model.As with any authentic vintage component, minor age-related imperfections may remain.Please review all photographs carefully. The photos show the actual receiver being offered for sale.WHY THE SX-1280 IS SPECIALThe SX-1280 represents the era when Pioneer was competing to build some of the largest and most impressive receivers ever offered to the home audio market.At approximately 63 pounds, this is no ordinary receiver.Its combination of:Massive amplifier reservesHeavy-duty power supplyLarge heat sinksTwin analog power metersWide illuminated tuning displayPrecision-machined controlsClassic wood and brushed-aluminum stylinggives the SX-1280 the physical presence expected from a true statement piece.For many collectors, models such as the SX-1250, SX-1280 and SX-1980 represent the peak of classic Pioneer receiver design.The SX-1280 is particularly appealing because it combines 185WPC power, iconic styling and increasing scarcity in properly restored condition.This is not merely another vintage receiver.It is a centerpiece for a serious vintage Hi-Fi collection.SOUND CHARACTERThe SX-1280 has the scale and authority expected from a high-powered Pioneer receiver.Bass is deep, powerful and controlled, with substantial reserve power for larger loudspeakers.The midrange is full-bodied and involving, while the high frequencies remain open and detailed.Most importantly, the SX-1280 maintains excellent composure when the music becomes demanding. Its substantial power reserves provide the dynamic headroom that makes large-scale rock, jazz and orchestral recordings especially enjoyable.For listeners who appreciate classic analog Hi-Fi with serious power behind it, the SX-1280 remains an outstanding choice.SPECIFICATIONSType: AM/FM Stereo ReceiverTuning Range: FM / MWPower Output: 185 watts per channel into 8ΩFrequency Response: 5Hz – 80kHzTotal Harmonic Distortion: 0.03%Damping Factor: 30Input Sensitivity: 7.5mV Mic / 2.5mV MM / 150mV LineSignal-to-Noise Ratio: 80dB MM / 95dB LineOutput: 150mV Line / 1V Pre OutMinimum Speaker Load: 4ΩSemiconductors: 5 FET / 6 IC / 67 Transistors / 50 DiodesDimensions: 21.89 × 7.32 × 18.15 inWeight: Approximately 63.34 lbsSUGGESTED SPEAKER PAIRINGSThe SX-1280 has enough power and control to work beautifully with a wide variety of vintage and modern loudspeakers.Pioneer HPM-100A natural period-correct pairing with excellent dynamics and classic Pioneer character.JBL L100 / Large JBL SystemsExcellent for powerful bass, dynamic rock playback and the energetic presentation associated with classic JBL speakers.Klipsch Forte SeriesHigh efficiency combined with the SX-1280’s large power reserve produces exceptional scale and effortless dynamics.Wharfedale Linton HeritageA smooth and full-bodied combination for listeners who prefer a warmer, relaxed presentation.For vinyl playback, a quality turntable such as the Technics SL-1200MK2 with a suitable moving-magnet cartridge makes an excellent companion.BUILDING A COMPLETE VINTAGE SYSTEM?HQaudios also carries vintage speakers, turntables, cassette decks, reel-to-reel machines, amplifiers and other classic Hi-Fi components.Receive a $100 voucher with an eligible combo purchase.Contact us if you would like help building a complete system around this SX-1280.TEST VIDEO AVAILABLEWant to see and hear this actual Pioneer SX-1280 operating?Contact us and we will be happy to provide the available test video.We encourage serious buyers to see the receiver in operation before purchase.PROFESSIONAL PACKAGINGAt more than 63 pounds, the SX-1280 requires considerably more protection than a typical receiver.HQaudios has extensive experience shipping large and valuable vintage audio components.Our packaging process includes:High-density protective foamHeavy-duty multi-layer corrugated cartonsAdditional internal padding and protective wrapReinforced corner protectionSecure outer packaging to minimize movementExterior strapping where appropriateParticular attention is given to protecting the faceplate, knobs, wood panels and heavy internal chassis during transportation.1-YEAR TECHNICAL WARRANTYPurchasing a valuable vintage receiver should come with confidence.This Pioneer SX-1280 is backed by the HQaudios 1-Year Technical Warranty.Our support also continues after delivery. If you have questions about setup, speaker matching, controls or normal operation, our team is available to assist.ABOUT HQAUDIOSHQaudios specializes in professionally restored vintage audio equipment for collectors and music lovers.We work with classic equipment from brands including:Pioneer • Marantz • Sansui • JBL • McIntosh • Klipsch • Tannoy • Akai • TEAC and more.We also provide professional vintage audio repair, restoration, custom wood cabinet and cosmetic restoration services.Trade-in opportunities may be available for selected vintage equipment.Contact us with the brand, model, condition and photos of your equipment.PIONEER SX-1280185 Watts Per ChannelProfessionally RestoredFully Tested & Calibrated1-Year Technical WarrantyOne of the great Pioneer Monster Receivers of the golden age of Hi-Fi – restored and ready for its next serious system.
Price$7,999
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