Cerwin Vega At40 Specs Jun 2026
| Specification | Detail | | :--- | :--- | | | 3-Way, Bass Reflex (Rear Ported) | | Warranty (Original) | 5 Years (Drivers) | | Production Era | 1988 – 1993 (approx.) | | Country of Origin | USA (Assembled in California) |
If you are ready to take on the project of restoring a classic pair, they offer a unique and timeless coolness that is hard to find in modern speakers.
45Hz. The Reality: Measurable output down to 42Hz, but with a steep drop below 50Hz. The rear-firing slot port requires at least 6 inches of space behind the speaker. Place them near a wall, and the bass jumps to a hearty 48Hz at usable levels. They won't shake your teeth, but for an 8" monitor, the kick drum has genuine thwack .
typically utilizes a three-driver configuration designed for a robust, full-spectrum sound: cerwin vega at40 specs
Like most vintage Cerwin-Vega speakers, the
Ensure the original 10-inch woofers, midranges, and tweeters are intact. Many owners replaced blown original drivers with cheap, generic aftermarket parts, which completely ruins the engineered sound signature.
The "AT" stands for "Atlas," and the build quality matches the name. The woofer features a cast-aluminum frame (rather than stamped metal), which is more rigid and resonance-resistant. Combined with a rugged cabinet design, this allows the speaker to handle high power (200 watts RMS / 400 watts peak) without distortion or mechanical failure. | Specification | Detail | | :--- |
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 "AT" series (including the AT-40) is distinct from the more common "AT" (Acoustic Thunder) series from the late 1980s/early 1990s. The AT-40 is a later model (circa late 1990s to early 2000s), often considered part of the "Intensity" or transitional series, featuring a more modern, curved cabinet design while retaining Cerwin-Vega's signature high-efficiency, high-output philosophy.
The AT-40 is a three-way, bass-reflex design, a configuration Cerwin Vega has long mastered. The specifications begin with the low-frequency driver: a . Unlike cheaper stamped steel frames, the cast frame ensures rigidity, reducing unwanted resonances at high volumes. This woofer features the iconic Cerwin Vega "red surround"—a treated foam or cloth roll that is notably more durable and compliant than standard foam, allowing for the extreme cone excursion required to produce the brand's signature "heart-thumping" bass. The spec sheet lists the woofer's impedance at 8 ohms (nominal), making the AT-40 an easy load for most receivers and amplifiers. The rear-firing slot port requires at least 6
does not require massive, high-end power amplifiers to sing. Its 95 dB sensitivity rating means it can deliver room-shaking volume using modest vintage receivers or modern low-wattage amplifiers.
10-inch (25.4 cm) cast-frame or stamped-frame cone with a signature red polymer foam surround