is not designed for that market. Instead, it is engineered for .
If you own a pair of AT-40s or are looking to buy a used set, there is one critical maintenance issue to be aware of: . The foam used in the 1990s, like that on the AT-40, is susceptible to dry rot over time. The foam can become brittle, crack, and disintegrate, especially after decades of use.
The foundation of the AT-40 is its heavy-duty wrapped in the famous, striking red foam surround . The driver features a large motor structure and a lightweight, rigid fiber cone designed to move air quickly. It fires into a tuned rear-facing bass-reflex port, allowing the system to achieve authentic, physical bass extension all the way down to 30 Hz without needing hundreds of watts of amplifier power. 2. Mid-Frequency Cone (5-Inch)
is a vintage, 3-way bass-reflex loudspeaker manufactured under the legendary AT (Advanced Technology) series during the late 1980s and early 1990s . Revered by vintage audio collectors, this mid-sized floor-standing tower combines Cerwin-Vega's trademark high-efficiency, party-rocking bass with an accurate, balanced three-way driver configuration. Cerwin-Vega AT-40 Go to product viewer dialog for this item. Technical Specifications The official factory specifications for the Cerwin-Vega AT-40 Go to product viewer dialog for this item. cerwin vega at40 specs
: Thanks to its high 95 dB sensitivity rating, the
The Ultimate Guide to Cerwin-Vega AT-40 Specifications, History, and Performance
: The cabinets were often built with thick particle board or plywood, frequently finished in wood-grain vinyl or veneer. Some European models were licensed to the Dali factory in Denmark , utilizing American-made drivers in European-built cabinets. is not designed for that market
The Cerwin-Vega AT-40 is a 3-way loudspeaker system, meaning it splits the audio signal into three distinct frequency bands to be handled by dedicated drivers. Driver Complement
If you audition a pair of AT-40s and notice the tweeters aren't producing sound, check the back panel. The protective fuses may simply be blown. Replacing a fuse is a quick, 50-cent fix that can save you from replacing an entire driver.
The rear level adjustment dials often accumulate dust over 30 years. If turning the dials causes crackling sounds or causes the tweeter to cut out, a quick spray of DeoxIT cleaner inside the potentiometer will usually fix it. Conclusion The foam used in the 1990s, like that
The table below aggregates all the available technical data for the Cerwin Vega AT-40 from various enthusiast and sales sources. While Cerwin-Vega produced several variations of this model under the "AT" banner, the core specifications remain largely consistent for the AT-40.
If you are thinking about buying a pair or working on a restoration, tell me: What do you plan to use with them? What is the condition of the foam surrounds on the woofers? What size room will you be putting them in?
The heart of the AT-40 is its 10-inch woofer. Cerwin-Vega utilized a custom-designed cone suspended by their signature red foam surround. This driver is housed in a sturdy basket assembly, allowing for high excursion (physical movement) without warping. Because it operates in a tuned, rear-ported bass reflex cabinet, this woofer can effortlessly drop down to 35 Hz, delivering physical, punchy bass that you can feel in your chest. 2. The 5-Inch Midrange Driver