Acoustic Research AR-915
A three-way AR tower that survives mostly in repair kits and the occasional pair with fresh foam. The record on it is thinner than the surrounds were.
Overview
The Acoustic Research AR-915 shows up mostly as a phrase in a listing title: "ACOUSTIC RESEARCH AR-915 3-way Speakers." That's all the surviving documentation offers. No service manual, no catalog page, no period review. It's a three-way speaker from Acoustic Research, and it comes in pairs. The one listing that survives describes "woofer drivers in both cabinets," plural, so this is a stereo pair with a woofer per box, not a single unit or a sub/satellite setup.
Beyond the configuration, the record goes quiet. There's no impedance figure, no sensitivity, no frequency response, no crossover point, no dimensions, no weight, no power rating. Anyone quoting those numbers for an AR-915 is working from something other than the surviving documentation. What does exist is a dedicated foam surround repair kit, which is about the closest thing to a confession the market has left on how these speakers age.
Key Features
Three-Way Configuration with Woofer Drivers in Both Cabinets
The surviving listing calls the AR-915 a three-way speaker, and the same listing notes "woofer drivers in both cabinets," meaning a stereo pair with its own woofer in each cabinet. That's the extent of the driver complement the documentation supports. A three-way design implies a midrange and a tweeter, but the available material doesn't spell them out. Anyone describing the AR-915's mid and high drivers is filling a gap the record doesn't fill.
Foam Surrounds — and the Repair Kit That Outlived the Speaker
The most concrete fact about the AR-915 is that its woofers used foam surrounds, and those surrounds are the failure point. The listing for the pair notes "fresh surrounds on the woofer drivers in both cabinets" - the seller flagging that the work was already done, which tells you the original foam had gone. A foam surround repair kit is still sold specifically for this model. Its contents are listed plainly: two piece foam surrounds, glue, and installation instructions. Two surrounds, one pair of woofers. The math lines up with a single pair of AR-915s.
That kit exists because enough of these speakers are still in circulation, with crumbled foam, that someone found it worth making replacements. If you find a pair with original surrounds, plan on the refoam before you plan on the listening.
Seller-Reported Sound
The one subjective claim attached to the AR-915 comes from a listing, not a review: "They rock the house and have excellent sound reproduction." That's a seller talking, and it carries all the weight a classified ad carries. It's the only listening impression in the surviving record. No magazine measured these, and no owner forum thread survives in the documentation. Any stronger claim about how the AR-915 sounds is unsourced.
Collectibility & Value
There is no current market price in the surviving record for the AR-915. The one listing that exists is dated - it was "in sale since Saturday, July 08, 2017" - and that's the only transaction marker on file. What the record does support is the practical side of ownership: the foam surround repair kit, sold with two surrounds, glue, and instructions, and described as "ideal for: Acoustic Research AR 915." That kit is the single most reliable AR-915 accessory on the market, and it's the first thing to budget for if a pair turns up.
Beyond the refoam, there's no documented failure pattern, no spare-parts chain, and no collector consensus to lean on. The AR-915 doesn't have the reputation of the AR-3 or the AR-3a, and nothing in the record suggests it commands their prices.
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