💎💎💎 Vintage Pioneer SX-770 Stereo Receiver - Serviced + Cleaned

For Sale: Pioneer SX-770 Stereo Receiver – 20 WPC (1970–1971)

Up for sale is a Pioneer SX-770, a beautifully styled stereo receiver from the golden age of hi-fi (1970–1971). Rated at 20 watts per channel into 8 ohms, the SX-770 delivers the warm, musical sound Pioneer is known for. Its classic silver face, warm dial glow, and solid build quality make it a perfect piece for collectors, vinyl fans, or anyone seeking vintage sound at a manageable size.

Condition & Preventive Maintenance

As with all gear from Bash Vintage Audio, this receiver has gone through careful service and cosmetic refresh by a trusted technician with 30+ years’ experience. We focus on reliability, clean performance, and preservation of original character.

Please review all photos and the YouTube video carefully before purchase. They form part of the condition description. Please ask any questions prior to purchase.

Preventative Maintenance Service Includes:

✔️ Functional Check & Basic Repairs

• Both channels tested for clean, powerful output
• All inputs/outputs fully tested (Phono, Aux, Tape)
• DeoxIT applied to all pots & switches to remove crackle and static
• Dial lamps checked and replaced if required
• Only defective capacitors and resistors replaced as needed

✔️ Deep Cleaning & Cosmetic Refresh

• Knobs and faceplate hand-cleaned and polished
• Wood cover conditioned and polished
• Interior dust fully removed and cleaned
• Metal cover cleaned; minor blemishes treated

✔️ Final Burn-In & Sound Check

• Operated for several hours under load
• Final listening test with real music to confirm warmth, clarity, and stability

Cosmetic Condition:

• Excellent for its age — clean front panel, bright display, all original knobs intact
• Cabinet shows only light wear consistent with vintage age (see photos)

Specifications (Pioneer SX-770):

• Power Output: 20 WPC @ 8Ω RMS
• THD: 0.8%
• Frequency Response: 20 Hz – 60 kHz
• Inputs: Phono, Aux, Tuner, Tape
• Speaker Outputs: A/B
• Dimensions: 17.2" W × 5.5" H × 13.4" D
• Weight: 21 lbs (9.5 kg)
• Year: 1970–1971

Shipping & Terms

• Local Pickup: Available in Newton, MA or Portsmouth, RI
• Shipping: Professionally packed and insured with Reverb Safe Shipping
• Ships within 5 business days
• Vintage item sold AS IS, no returns (standard for vintage gear)
• Buyer may need minor calibration/adjustments after shipping

Tags for Visibility

Pioneer SX-770 | Vintage Stereo Receiver | Silverface | Marantz | Sansui | Kenwood | Yamaha | Technics | Audiophile | Phono | Hi-Fi Receiver