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Original Large Advent 2-Way Bookshelf Speakers, USA-Made
The Smaller Advent Vintage 2-Way Bookshelf Speakers, USA-Made
A 9.5-inch paper-cone woofer and a 2-inch paper-cone dome — the tweeter collectors call the fried egg — crossed at 1,500 Hz in a pure acoustic-suspension cabinet with no port anywhere. Designed by Advent founder Henry Kloss and voiced by Andy Kostatos, who went on to found Boston Acoustics. Made in the USA in 1972. Good cosmetic condition, with honest wear for a speaker now past fifty.
Advent Calypso Bookshelf/Indoor-Outdoor Speakers – Versatile
Wedge-shaped high-impact ABS cabinets with metal grilles, built as indoor/outdoor speakers: a 5.25-inch polypropylene woofer and a 0.5-inch ferrofluid-cooled polycarbonate dome, 55 Hz to 20 kHz at 90 dB into 8 ohms. Gold-plated 5-way posts, 6 lbs each, and the wedge shape lets them sit into a corner. Sweep-tested; very good cosmetic condition.