Pioneer SX-950 85W Stereo Receiver – Custom Black FaceplateProfessionally Restored by HQaudios – Fully Tested – Backed by Our 1-Year Warranty.1/ Quick Buyer SummaryBrand: PioneerModel: SX-950Type: AM/FM Stereo ReceiverEra: 1976–1978Power Output: 85W/ch into 8 Ohms / 110W/ch into 4 OhmsFaceplate: Custom Black Faceplate FinishSpeaker Systems: A / B / CPhono: Dual MM Phono InputsPre / Main: Separable Pre Out / Power Amp InPower Requirement: AC 120V / 60Hz – Standard U.S. OperationDimensions: Approx. 20.73 W × 6.81 H × 18.11 D in (526.6 × 173 × 460 mm)Weight: Approx. 48.5 lbs / 22 kgCondition: Professionally Restored / Serviced / TestedWarranty: 1-Year HQaudios WarrantyCustom Finish Disclosure: The black faceplate on this unit is a custom finish and is not represented as a factory-original black-face version.2/ Why the Pioneer SX-950 Stands OutThe Pioneer SX-950 is a high-power mid-1970s stereo receiver combining an 85-watt-per-channel amplifier, sensitive AM/FM tuner, dual phono inputs, multiple speaker-system outputs, dual tape-monitor circuits, microphone input, extensive tone and filter controls, and separable preamplifier / power-amplifier sections. This particular unit adds a distinctive custom black faceplate while retaining the classic SX-950 control layout, tuning display, meters, and operating functions.3/ Amplifier, Phono & Tuner Architecture85W/ch into 8 Ohms / 110W/ch into 4 OhmsDirect-Coupled Stereo Power AmplifierDual MM Phono InputsLow / High Filters + LoudnessDual Tape Monitor / Tape-to-Tape DubbingSeparable Pre Out / Power Amp InMicrophone InputAM/FM Tuner with Signal-Strength and Tuning MetersSpeaker A / B / C Selection4/ HQaudios Restoration & Multi-Point Quality ControlBefore RestorationThe Pioneer SX-950 was carefully inspected upon arrival to evaluate its mechanical, electrical, operational, and cosmetic condition.Particular attention was given to the power supply, amplifier stages, protection circuitry, preamplifier and phono sections, AM/FM tuner, controls, switches, speaker terminals, RCA connections, internal wiring, tuning meters, and illumination.During RestorationBased on the inspection results, this Pioneer SX-950 was restored according to HQaudios' technical standards while preserving its original Pioneer engineering and vintage character.The power supply, amplifier circuitry, signal path, controls, switches, connectors, tuner section, and related internal components were inspected and serviced as documented.Service documentation records replacement of multiple electrolytic capacitors, resistors, transistors, and specified dial / indicator illumination components.The chassis, controls, dial area, meters, and custom black faceplate were professionally cleaned and detailed.After RestorationOnce restoration was completed, this receiver underwent comprehensive functional testing under real operating conditions.Amplifier performance, channel balance, tuner reception, inputs, outputs, speaker outputs, controls, switches, meters, and illumination were checked for proper operation.Finally, the SX-950 underwent an extended real-world listening test to evaluate sound quality, operational stability, and overall performance before being approved for sale.5/ Listening CharacterIn a properly matched system, the Pioneer SX-950 delivers a powerful, controlled vintage-receiver presentation with authoritative bass, clear midrange, and clean high-frequency response. Its extensive tone and filter controls provide useful flexibility for different speakers, rooms, and recordings, while the 85-watt-per-channel amplifier offers substantial headroom for many classic passive speaker systems.6/ Actual Cosmetic ConditionThis Pioneer SX-950 presents in Excellent Vintage Condition overall, with light age-related wear from normal previous use.Custom Black Faceplate / Front Panel: The custom black front panel presents very well overall, with the Pioneer control layout, lettering, tuning display, and meters remaining clear and visually balanced.Knobs / Controls / Switches: Original-style controls and switches are present and retain the classic SX-950 layout.Dial Glass / Meters / Illumination: The large tuning display and dual meter arrangement retain the characteristic SX-950 appearance.Rear Panel / Connections: The rear panel shows light surface scratches and scuffs from normal previous use, especially around the Phono / AUX input and ground-terminal area. The markings remain legible, and the RCA connections and terminals are present as shown in the photos.Chassis / Housing: The chassis and exterior housing present well overall with light vintage wear.Please review all product photos closely; they show the exact unit and form an important part of the condition description.7/ Factory SpecificationsBrand: PioneerModel: SX-950Type: AM/FM Stereo ReceiverPower Output: 85W/ch into 8 Ohms / 110W/ch into 4 OhmsTotal Harmonic Distortion: 0.1% at Rated OutputPower Amp Frequency Response: 7Hz–90kHzPreamp AUX / Tape Response: 15Hz–40kHzDamping Factor: 25Phono Input: 2.5mV / 50k OhmsLine Input: 150mV / 50k OhmsSignal-to-Noise Ratio: 75dB Phono / 90dB LineSpeaker Systems: A / B / CFaceplate: Custom Black Faceplate FinishPower Requirement: AC 120V / 60Hz – Standard U.S. OperationDimensions: Approx. 20.73 W × 6.81 H × 16.20 D in (526.6 × 173 × 411.5 mm)Weight: Approx. 42.1 lbs / 19.1 kgCondition: Professionally Restored / Serviced / TestedWarranty: 1-Year HQaudios Warranty8/ U.S. Power CompatibilityThis Pioneer SX-950 is configured for standard U.S. 120V AC / 60Hz operation and is ready for normal U.S. household power. No step-down transformer is required for use in the United States.Speaker & System CompatibilityThe SX-950's 85-watt-per-channel output makes it suitable for a wide range of compatible vintage passive loudspeakers, including Pioneer HPM-series, JBL monitors, Advent, Klipsch, and similar designs when properly matched for impedance, sensitivity, room size, and listening level.Use speakers rated 4 Ohms or higher when operating one speaker system. When using two speaker systems simultaneously (A+B, A+C, or B+C), each speaker system should be rated 8 Ohms or higher. Avoid sustained clipping and excessive tone-control boost.9/ What Is IncludedOne Pioneer SX-950 Stereo Receiver with Custom Black Faceplate, as shown in the listing photographs.Video Test and Buyer ServicesAdditional close-up photos or an operational video demonstration may be available upon requestComplimentary speaker and system-matching guidance is available before purchaseA multi-item discount may be available when building a complete vintage systemSelected vintage audio equipment may be considered for trade-in10/ Shipping and PackagingVintage receivers are heavy and delicate and require careful packing. This Pioneer SX-950 will receive protective coverage around the custom black faceplate, dial glass, tuning meters, knobs, chassis corners, and rear connections, together with dense internal cushioning and a heavy-duty outer carton. Tracking information will be provided after shipment, and signature confirmation may be required. Local pickup may also be available by appointment.11/ 1-Year HQaudios WarrantyThis receiver is covered by our 1-Year HQaudios Warranty for proper electronic and functional operation under normal home use.Coverage does not include misuse, physical damage, unauthorized repair, incorrect wiring, incompatible equipment, amplifier clipping, excessive power, or operation outside the manufacturer's intended specifications. Please refer to the warranty terms supplied with the order for complete coverage details.12/ Buy With ConfidencePlease review the complete description and all product photos before purchase. Contact HQaudios if you need clarification regarding the custom black faceplate, rear-panel cosmetic wear, speaker compatibility, U.S. 120V operation, included items, shipping, or warranty coverage. HQaudios – Vinta