Used

Ahead Stereo - New and used stereos, audio, video and electronic equipment.
www.aheadstereo.com

AllegroSound - Buy, sell and trade vintage and high-end audio.
www.AllegroSound.com

Audible Difference - Demo and pre-owned audio equipment.
www.highendaudio.com/demos.htm

Audio Exchange - Used audio and video equipment.
www.fredsoundofmusic.com/audio_exchange.html

Audiojumble - The annual UK event dedicated solely to the buying and selling of second-hand and vintage hi-fi.
www.audiojumble.co.uk

Audio-Video Logic - Used and demo audio and video components available USA nationwide, and new equipment available in the Des Moines area.
www.audio-logic.com/

classicaudio.com - High fidelity art from the 1970's, Service and Parts.
www.classicaudio.com

Gabriel Sound - Used audio equipment sales including vintage, collectable, used and demo units.
gabrielsound.com/shopsite_sc/store/html/page10.html

Galen Carol Audio - Used and demo audio equipment.
www.gcaudio.com/

Goodwin's High End - Used, demo, and closeout equipment from New England's largest all-high-end audio and home theater retailer.
www.goodwinshighend.com/used.htm

HiFi Audio Sound Parts Materials - Selling parts stock, service manuals, unclaimed equipment, cadavers.
myweb.ecomplanet.com/HIFI2650/

ProAux.com - Free online auctions specializing in pro audio gear for recording studio, live concert sound, and Dj equipment.
www.proaux.com

Recycled Audio - Used audio gear.
www.recycledaudio.com/stuff.html

Saturday Audio Exchange - Used audio gear.
saturdayaudio.com/usedgear.htm

Signature Sound - A variety of equipment including amps, cables, turntables and stands. Also provides information about its new equipment sales through its Liverpool, New York store.
www.sigsound.com/

The Sound Well - This Berkeley, California store Specializes in reconditioned hi-fi equipment.
www.thesoundwell.com

Vintage Hi-Fi - Used classic hi-fi equipment and parts.
www.vintagehi-fi.co.uk/

VinylConnections - Vintage audio equipment such as turntable, loudspeakers and recording.
www.vinylconnections.co.uk/4sale1.htm