Here are the key technical specifications for the AT-40, showcasing its engineering: 3-Way, Bass Reflex (Ported) loudspeaker
If you are looking for an ultra-flat, sterile studio monitor for analytical listening, the AT-40 is not it. These speakers were built to be fun, dynamic, and incredibly loud.
sits in the middle of the AT series, offering a more compact footprint than the massive or AT-100 while still providing significantly more "kick" than the entry-level bookshelf models. cerwin vega at40 specs
The Cerwin-Vega! AT-40 is a studio monitor and consumer loudspeaker model from Cerwin-Vega, a brand long associated with high-efficiency, bass-forward loudspeakers designed originally for live sound and car audio before moving into home and studio markets. The AT-40 exemplifies the company’s design priorities—robust low-frequency response, high sensitivity, and a focus on musical impact—while reflecting trade-offs common to many speakers that emphasize bass and loudness.
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The sonic signature of the AT-40 mimics a live concert venue. The bass is forward, energetic, and hits with extreme authority. Rock, metal, hip-hop, and electronic music sound spectacular on these enclosures.
The Cerwin-Vega AT40 boasts a sturdy, MDF cabinet with a textured vinyl finish. The speaker's design is both functional and aesthetically pleasing, with a clean, minimalist look that fits well in any home or studio setting. The drivers are carefully mounted to minimize resonance and ensure optimal performance. The Cerwin-Vega
The Cerwin-Vega AT-40 is a late-1980s 3-way, rear-ported loudspeaker featuring a 10-inch woofer, 5-inch midrange, and 1-inch tweeter, delivering 95 dB sensitivity and 125 watts continuous power handling. Designed for high sound pressure levels, the system includes frequency response from 30 Hz to 22 kHz and adjustable midrange/tweeter controls. For detailed technical specifications, visit Classic Audio Cerwin-Vega AT-100 Loudspeakers (Vintage)
The cabinets measure approximately 28.7" (H) x 14.4" (W) x 12.6" (D) (730 x 365 x 320 mm). Performance Profile
The most important number on the AT-40’s spec sheet is its sensitivity: . To put this in perspective, an average bookshelf speaker produces about 87-89 dB with the same 1 watt of power. Because decibels are logarithmic, the AT-40 is roughly 4 to 5 times louder than a standard speaker at the same amplifier setting. This insane efficiency means that a modest 20-watt amplifier can drive the AT-40 to deafening levels, while a 200-watt amp can produce concert-hall pressure. The power handling is rated at 150 watts RMS (300 watts peak) . The combination of high sensitivity and high power handling creates a speaker with virtually unlimited headroom.
The AT series is famous for its rugged build , often surviving decades of house parties with only a simple "re-foam" of the woofer surrounds needed to bring them back to life.