Pioneer QX-646

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Product

Site

Price

Listed

OLX Poland

Pioneer HPM-50 Pioneer qx-646

OLX Poland PLN 3,200 3% Feb 8, 2026

Kleinanzeigen

Pioneer QX-646 Vintage-Receiver aus Erstbesitz, Baujahr 1974

Kleinanzeigen €349 21% Feb 7, 2026

Reverb

*Serviced* Pioneer QX-646 Vintage AM FM Quad 4 Channel Receiver

$300 1% Feb 6, 2026

Kleinanzeigen

Receiver Pioneer QX-646

Kleinanzeigen €165 3% Jan 26, 2026

Bazos Czechia

PIONEER QX-646 KVALITNÍ VINTAGE STEREO RECEIVER

Bazos Czechia CZK 9,990 Jan 20, 2026

Sbazar

PIONEER QX-646 KVALITNÍ VINTAGE STEREO RECEIVER !!

Sbazar CZK 9,990 Dec 13, 2025

OLX Portugal

receiver quadrifônico PIONEER QX-646

OLX Portugal €250 26% Apr 20, 2025

Reverb

PIONEER QX-646 Vintage Wood Quad 4 Channel Receiver ~ WORKS AND LOOKS GREAT!

$300 12% Apr 12, 2025

US Audio Mart

Pioneer QX-646 QUAD Receiver

US Audio Mart $275 Sep 12, 2022

Resources

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Discuss Pioneer QX-646

Power Amp (AWH-019) not functioning.

By jacolucci, 15. October 2021, 18:10.

Replaced all caps and transistors. Having difficulty tracing circuit due to mirror layout of schematic. Getting proper voltages however finals (emmiters) showing no voltage. Really stumped on this one. Audio getting to board is good, however nothing past first transistors.