Advent · Bookshelf · c.1969 to the late 1970s
Henry Kloss wanted to build a projection TV, and to pay for it he built a speaker. The Advent Loudspeaker went against the idea that a top speaker needed three drivers. Advent's brochure argued that a two-way had less interference between drivers and one simple crossover, and promised performance at least equal to the most expensive speakers. The woofer is built on a standard 12-inch frame for maximum cone travel, with a polyurethane foam surround, and the tweeter is a one-piece cone with a tiny inner dome and a rolled outer ring that sits forward of the baffle. A switch on the back gives three treble settings. The brochure promised the 30 Hz organ note that opens Also Sprach Zarathustra, room-shakingly. It came in walnut veneer or a vinyl utility cabinet, and once the Smaller Advent arrived, people started calling it the Large Advent.
With the grille off
Ask for a photo of every driver with the grilles off, on both speakers. They should match each other and this list.
The woofer's foam surround will have aged on any pair that hasn't been redone. Advent's own service notes say the most likely defect is a rubbing voice coil, and a buzz on just one or two notes usually means a tweeter lead is touching the cone.
New to old speakers? How to check a used pair walks through every driver, the crossover and the cabinet.
We haven’t been through this model’s listings yet. Search eBay and run every listing through the checklist above. Ask for photos of both speakers with the grilles off and the serial labels on the back, and pass on any seller who won’t send them.
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BookshelfSpecs and what to check →
Advent · 2-way
BookshelfSpecs and what to check →
Acoustic Research · 3-way
BookshelfSpecs and what to check →
Advent · 2-way
BookshelfSpecs and what to check →