Offered by Bash Vintage Audio (BVA) is a clean, serviced Pioneer SX-780 vintage stereo receiver, serial number CP5608846Y, featuring a new wood case, warm-white LED dial lighting, a selective/partial recap, and 3+ hours of continuous bench testing.

The Pioneer SX-780 is a classic late-1970s silver-face receiver rated at approximately 45 watts per channel into 8 ohms. It remains popular with collectors and music enthusiasts for its classic Pioneer styling, analog AM/FM tuner, phono capability, and strong everyday usability with both vintage and modern speakers.

This exact receiver has been carefully cleaned, detailed, inspected, serviced, and continuously bench tested for 3+ hours. Both channels were confirmed operational during testing.

For complete transparency, this receiver is not being represented as fully recapped or fully restored. Internal inspection indicates a selective/partial recap, primarily involving the GWK-118 amplifier/power-supply circuitry, while many original components remain.

Key Highlights

• Pioneer SX-780
• Serial number: CP5608846Y
• Approximately 45 watts per channel into 8 ohms
• Classic late-1970s Pioneer silver-face receiver
• New wood case installed
• Warm-white LED dial lighting upgrade
• Selective / partial recap
• Serviced and detailed
• Both channels confirmed working
• 3+ hours of continuous bench testing
• AM/FM stereo tuner
• Phono input for turntable
• Auxiliary input
• Tape monitor connectivity
• Speaker A/B selection
• Bass and treble controls
• Balance control
• Loudness function
• Headphone output
• Analog tuning dial and meters

Service & Partial Recap Details

This Pioneer SX-780 has been inspected and serviced prior to listing.

Confirmed Service

• Selective / partial recap primarily involving the GWK-118 amplifier/power-supply circuitry
• Several newer electrolytic capacitors are visible on the GWK-118 board
• Warm-white LED lighting upgrade completed
• Both left and right channels confirmed operational
• Receiver completed 3+ hours of continuous bench testing

Recap Disclosure

This SX-780 should be considered partially or selectively recapped, not fully recapped.

The GWK-118 amplifier/power-supply board shows several newer electrolytic capacitors, while numerous original capacitors remain elsewhere in the receiver.

The large main filter capacitors appear to be older/original-style components and are not being represented as replaced.

The AWE-099 tuner/FM section appears predominantly original, with at most isolated capacitor replacement. The tuner section is not being represented as recapped.

Bash Vintage Audio describes service work based on what can be visually verified and documented. We do not use terms such as fully restored or fully recapped unless the service history supports those claims.

Warm-White LED Dial Lighting

The original dial illumination has been upgraded to warm-white LEDs.

Warm-white LEDs were selected to preserve the classic appearance of the Pioneer SX-780 while improving lighting reliability and reducing heat compared with traditional incandescent lamps.

The result is a cleaner, period-appropriate presentation rather than the colder blue-white appearance sometimes associated with modern LED conversions.

New Wood Case

This receiver has been fitted with a new wood case, giving it the classic walnut-and-silver appearance associated with Pioneer receivers of this era.

The case has attractive grain and significantly improves the overall presentation while maintaining a period-correct look.

Cosmetic Condition

This Pioneer SX-780 presents very well overall for its age.

The aluminum faceplate, controls, dial area, rear panel, and exterior have been carefully cleaned and detailed.

As shown clearly in the photographs, the receiver has normal vintage cosmetic wear, including several scratches and marks on the brushed-aluminum faceplate and upper trim. These imperfections are cosmetic and have been intentionally photographed rather than hidden.

The new wood case presents attractively overall and is one of the strongest cosmetic features of this unit.

Please review all high-resolution photographs carefully, as they form an important part of the condition description and show the exact receiver being offered.

Cleaning & Cosmetic Preparation

This SX-780 received detailed cosmetic preparation prior to listing.

• All removable control knobs ultrasonically cleaned
• Knobs dried and polished
• Faceplate cleaned and polished
• Aluminum trim carefully detailed
• Dial area cleaned
• Rear panel cleaned
• Exterior cleaned and prepared
• New wood case installed

3+ Hour Continuous Bench Test

This exact Pioneer SX-780 completed 3+ hours of continuous bench testing after preparation.

During the bench test:

• Left channel confirmed operational
• Right channel confirmed operational
• Receiver monitored during extended operation
• Controls and functions checked
• Warm-white LED lighting confirmed operational

Extended continuous testing provides a more meaningful operational check than a brief power-on demonstration and can help reveal intermittent issues that may not appear immediately.

Pioneer SX-780 Features

The SX-780 includes the core functions expected from a classic Pioneer stereo receiver:

• AM/FM stereo tuner
• Phono input for vinyl playback
• Auxiliary input
• Tape connectivity
• Two-channel stereo amplification
• Speaker A/B outputs
• Bass and treble adjustment
• Balance control
• Loudness function
• Headphone output
• Analog tuning display
• Signal and tuning meters

Its approximately 45-watt-per-channel output makes it suitable for a wide range of efficient vintage and contemporary loudspeakers.

Video Demonstration

A video demonstration of this exact Pioneer SX-780 may be included with the listing.

Please review the video and all listing photographs as part of the description before purchasing. As questions before purchasing.

Why Buy From Bash Vintage Audio?

Vintage receivers frequently contain a combination of original and replacement components. When only part of a receiver has been recapped, we describe it specifically as a partial or selective recap.

Shipping

This Pioneer SX-780 will be carefully packed for shipment with particular attention to the faceplate, dial area, control shafts, knobs, chassis, and new wood case.

Packaging may include:

• Heavy-duty protective wrapping
• Dense cushioning
• Reinforced inner packaging
• Double-boxing
• Insured ground shipping
• Signature confirmation when appropriate
• Reverb Safe Shipping when applicable

Vintage receivers are heavy precision electronics and require substantially more protection than modern lightweight audio equipment.

Returns

Any authorized return must be coordinated through Reverb and returned in the same condition in which it was received, preferably using the original packaging.

When a return is approved, Reverb-generated return shipping labels may take approximately five business days to become available.

Please contact Bash Vintage Audio through Reverb before initiating any return shipment.

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