Looking for good quality vintage speakers

Why do you want vintage speakers? What era are you looking for, what look, what footprint, what sound?

I am not particularly enamored of vintage speakers. Compared to what's available today, they don't have the detail, the linearity, or the dynamic range that you can get today. Some are all right, like the ADS speakers from the '80s, which are also very durable and have close-tolerance, high quality drivers.

Many of those vintage woofers had foam surrounds that crumble after 20 years. They are repairable, but only a few kinds are worth the trouble, and the larger the woofer, the more difficult it is to maintain voice coil alignment when replacing the surrounds.

Old Infinity Q series of the late '70's can compete with some of todays. Excellent dynamics too. I remember they were very affordable back then, they had the Emit tweeters.

I am not sure what you are looking for or what price range you are in. But there are companies that make new "vintage" speakers. Tannoy and Klipsch are two that I like. Old Klipsch are forward and very dynamic and Tannoy are smooth, laid back (still detailed). The Tannoys have newer technology in them like "Dual Concentric" drivers to help with phase and time alinement.

Here is a link to Tannoy's site.

http://www.tannoy-speakers.com/s.php?product=139&title=Autograph+Mini&s=