Historical

The Smaller Advent loudspeaker Specifications

Sidebar 1: Specifications

Description: Two-way acoustic-suspension bookshelf loudspeaker. Drive-units: 2" paper-cone tweeter with central dome, 9.5" paper-cone woofer. Frequency response: 33Hz–17kHz ±3dB (measured by 1975 High Fidelity Buyer's Guide). Nominal impedance: 4 ohms. Recommended minimum power: 15W.
Dimensions: 20 1/8" (515mm) H by 11 5/8" (300mm) W by 9 3/8" (240mm) D. Weight: not noted.
Serial Numbers Of Units Reviewed: S 47877, S 47106.
Price: $139.90/pair in 1972 ($668/pair in 2006 dollars).
Manufacturer: Advent Corporation, (then of) 195 Albany Street, Cambridge, MA 02139. Advent is long out of business.

COMPANY INFO
Advent Corporation
Advent is long out of business
ARTICLE CONTENTS

COMMENTS
dalethorn's picture
Submitted by dalethorn on February 26, 2013 - 8:30pm

I bought the Small Advents when they were introduced, from AudioCraft in Cleveland. I completely believed the advance publicity on the Small Advents, i.e. bass response essentially the same as the original Advent speaker. But although I can't find the pertinent review on the Web right now, I clearly remember a statement in the review by one of the larger-circulation magazines I read back then (Audio, High Fidelity, or Stereo Review): "Response at 30 hz was mostly doubling". It rather shattered my confidence in engineering-speak for some time afterward.

Halford Loudspeakers's picture
Submitted by Halford Loudspeakers on June 13, 2019 - 9:31am

I have always wished that this article could have been written about a pair of Smaller Advents that had been properly refoamed rather than having the hatchet job that was perpetrated on them. The proper 9" edge is readily available to all speaker repair professionals and that same person would know how to properly prep, shim, and use the proper adhesives and then reinstall using Mortite as had been originally used. The list of ways that the speaker pictured was improperly done includes, being trimmed down and overlapped, being glued onto the topside of the cone rather than the back side of the lip and being the wrong size roll and compliance. It is a testament to the miraculous engineering of Henry Kloss that this speaker could still impress with all of this mess having happened to it.

scottsol's picture
Submitted by scottsol on March 26, 2021 - 10:47pm

And yet, pretty much all the noted sonic deficiencies seem to be caused by flaws in the tweeter and cabinet, not the woofer.

fihi's picture
Submitted by fihi on October 5, 2021 - 6:51pm

I hear what you are saying but this article is pretty old. I restored a lot of Advents and Smaller Advents (along with a lot of other vintage speakers) in the early-mid 00s and could never find a source for the foam for the Smaller Advents. I see they offer it now and it is possible that a source existed back then but I never found one. I used proper methods and glue etc. but I did have to splice an overlap the foam. Oddly enough of all the Advents, EPIs, KLHs, Boston Acoustics and other classic era speakers I reconditioned back then I kept a pair of Smaller Advents with the “hacky” splice. The rest I passed on to others. These Smaller Advents were the best sounding with my system. When I replace the foam next time I’ll for sure seek out the proper replacements though.

X