quadraphonic

cjm-audio

Marantz 4415 Quadraphonic Receiver cjm-audio €623 21% Jun 21, 2024

Reverb

Pioneer QX-747 Quadraphonic Receiver $399 Sep 6, 2025

OLX Portugal

Sansui QRX-7500 Quadraphonic/Stereo OLX Portugal €700 22% May 28, 2025

cjm-audio

Marantz 4220 Stereo Quadraphonic Receiver Woodcase cjm-audio €685 Dec 20, 2025

Reverb

Marantz Model 4240 Quadraphonic Receiver - Silver $845 2% Nov 22, 2025

Reverb

Fully Restored Marantz 4240 Quadraphonic Receiver $1,250 Oct 12, 2025

Canuck Audio Mart

Vintage Kenwood KR-5340 Quadraphonic Receiver Canuck Audio Mart CA$275 54% Feb 16, 2023

Canuck Audio Mart

Kenwood KR-5340 Quadraphonic Receiver 1973 Canuck Audio Mart CA$280 14% Jul 13, 2025

Subito

Pioneer QX-949 4-Channel Quadraphonic Stereo Subito €1,200 Aug 8, 2025

Audioweb

Sony Quadraphonic SQ Decoder Amplifier SQA-200 Audioweb RON 600 Dec 12, 2022

US Audio Mart

Quadraphonic Four channel 8-Track Tape Cartridges US Audio Mart $100 33% Jul 13, 2025

Reverb

Marantz Model 4220 Quadraphonic Solid-State Receiver $850 6% Jun 11, 2025

Reverb

Sansui QS-500 Amplifier Rear Channel Quad Quadraphonic $149 Jun 26, 2025

Reverb

Sansui QS-500 Amplifier Rear Channel Quad Quadraphonic $199 Jun 26, 2025

Reverb

Pioneer QX-747A Quadraphonic Receiver in excellent condition $375 Feb 23, 2024

Kleinanzeigen

4x BASF maxell usw. Tonbandspule klein Quadraphonic Kleinanzeigen €79 May 24, 2024

Canuck Audio Mart

Pioneer QX-8000 Stereo/Quadraphonic 4 Channel Receiver Canuck Audio Mart CA$550 27% Nov 20, 2024

Canuck Audio Mart

Vintage-Citation Passive Quadraphonic adaptor Model KQ 501 Canuck Audio Mart CA$95 Feb 25, 2024

Reverb

JCPenney Quadraphonic AM/FM receiver 1970’s Simulated wood $80 33% Nov 13, 2021

Kleinanzeigen

4 Spur Tonband Reel to Reel : The Doors Quadraphonic Kleinanzeigen €300 Jun 4, 2022

Kleinanzeigen

4 Spur Tonband Reel : The Mystic Moods Awakening Quadraphonic Kleinanzeigen €59 Jun 2, 2024

Kleinanzeigen

4 Spur Tonband Reel Surround Stereo Sampler Vanguard Quadraphonic Kleinanzeigen €99 Jun 2, 2024

Reverb

Pioneer QX-949A 4-Channel Quadraphonic Stereo Receiver $529 Sep 30, 2025

US Audio Mart

AKAI CR-80D-SS Quadraphonic! 8 Track Player/Recorder US Audio Mart $450 29% Jul 17, 2021

Reverb

SANYO DCX3300KA Vintage Quadraphonic 4 Channel Stereo Reciever $299 Jul 11, 2025

Reverb

Sansui QD-5050 Quadraphonic reel to reel tape deck. SERVICED! $800 Sep 5, 2025

Kleinanzeigen

4 Spur Tonband Reel to Reel : Bach Greatest Fuges Quadraphonic Kleinanzeigen €49 Jun 2, 2024

Kleinanzeigen

4 Spur Tonband Reel to Reel : The Mystic Moods Quadraphonic Kleinanzeigen €49 Jun 2, 2024

Kleinanzeigen

4 Spur Tonband Reel to Reel : Isao Tomita Firebird Quadraphonic Kleinanzeigen €129 Jun 2, 2024

Reverb

Pioneer QX 949 Quadraphonic receiver mid 1970's - silver faceplate $695 Jul 5, 2025

Mercado Livre Brazil

Não Funciona - Receiver Sansui Qrx 6500 Quadraphonic 127/220v Mercado Livre Brazil R$3,498 Aug 27, 2025

Reverb

Sansui QRX-4500 Quadraphonic Receiver 1972-1974 - Wood & Silver Finish Front $400 20% Oct 8, 2025

Reverb

Sansui QRX-6500 Quadraphonic Receiver – Fully Serviced, Recapped - 1-Year Warranty $1,234 5% Dec 15, 2025

Kleinanzeigen

4 Spur Tonband Reel Joan Baez David’s Album Vanguard Quadraphonic Kleinanzeigen €49 Jun 2, 2024

Kleinanzeigen

Enoch Light Quadraphonic Quad Reel to Reel tape Hit Movie Themes Kleinanzeigen €49 Jun 2, 2024

Reverb

Pioneer QX-949 40-Watt Quadraphonic Solid-State Receiver 1973 - 1976 - Silver $600 8% Dec 8, 2025

Reverb

Pioneer QX-949 40-Watt Quadraphonic Solid-State Receiver 1973 - 1976 - Silver $800 Nov 2, 2024

Reverb

WELL-PRESERVED SANSUI QRX-6500 RECEIVER – QUADRAPHONIC POWER, SERVICED – 1-YEAR WARRANTY $1,139 19% Sep 5, 2025

Gebrauchte Veranstaltungstechnik

Quadraphonic Four Tap Quad Channel Delay (Set)(2x Kork SDD-1200) Gebrauchte Veranstaltungstechnik €800 Feb 28, 2025

Reverb

Pioneer SX-525 4-Channel Quadraphonic Stereo Receiver FOR PARTS/REPAIR NO OUTPUT $299 Sep 11, 2025

Reverb

Sansui QRX-7500A 4 Channel Quadraphonic Receiver 1973 Silver Face / Walnut Cabinet $1,221 2% Nov 7, 2025

Bonanza

Panasonic SD-209 Quadraphonic Phono 8 track receiver, EXC cond. but needs work! Bonanza $107 Jan 11, 2023

Canuck Audio Mart

Rare Virtue Audio Nirvana / Quadraphonic Express speaker cables (10ft all banana plugs ) Canuck Audio Mart CA$135 23% Oct 14, 2025

Mercado Livre Brazil

Receiver Sansui Qrx 3500 Stereo Quadraphonic Made Japan 100/117/220/240v Mercado Livre Brazil R$11,390 5% Sep 26, 2025

Reverb

Marantz Model 4430 30-Watt Quadraphonic Solid-State Receiver 1975 - Silver with Wood Case $1,100 31% Aug 28, 2025

Reverb

Marantz Model 4400 50-Watt Quadraphonic Solid-State Receiver 1974 - 1978 - Silver with Wood Case $2,500 25% Aug 14, 2025

Reverb

Marantz Model 4400 50-Watt Quadraphonic Solid-State Receiver 1974 - 1978 - Silver with Wood Case $1,800 Dec 18, 2024

Reverb

Vintage Panasonic CD-4 70s Test Record SPR111-1 EP Vinyl Record Quadraphonic $87 Mar 20, 2022