What's more, Audio Classics has a two-part grading system for the used gear it sells. For example, an Adcom GFA-555 power amp might have a B2 rating, the letter designates physical condition and ...

Stereo microscopes use reflected light from the object being studied, compared to the transmitted light that is used by compound light microscopes. Magnification ranges from 7.5 to 75x.

Stereo Buyers is the purchasing side of the business; the gear is sold through Wexler's High-End Audio Auctions' eBay store. I was surprised that most of the gear is sold to audiophiles in ...