Cerwin Vega At40 Specs Jun 2026

| Specification | Detail | | --- | --- | | | 3-way, bookshelf / stand-mount monitor, bass reflex | | Woofer | 8" (203mm) cast polymer frame, high-excursion, butyl rubber surround | | Midrange | 4" (100mm) treated paper cone with sealed back chamber | | Tweeter | 1" (25mm) soft dome ferrite magnet (some variants had a phenolic ring radiator) | | Frequency Response | 45 Hz – 20 kHz (± 3 dB) | | Sensitivity | 91 dB (1W/1m) | | Nominal Impedance | 8 ohms (minimum 5.2 ohms @ 120 Hz) | | Power Handling (RMS) | 75 watts | | Power Handling (Peak) | 150 watts | | Crossover Frequencies | 600 Hz and 4,500 Hz | | Enclosure Tuning | 45 Hz (ported, rear-firing slot port) | | Dimensions (H x W x D) | 19.25" x 11.25" x 9.5" (489 x 286 x 241 mm) | | Weight (per speaker) | 28 lbs (12.7 kg) | | MSRP (1990) | $400/pair |

: 1-inch Mylar or phenolic dome tweeter with high-frequency level controls for fine-tuning the "sizzle". Audio Performance & Legacy Go to product viewer dialog for this item.

Here are the factory specs as published in the original Cerwin Vega product literature (circa 1988-1991). Note: Some values vary slightly between the early and late production runs.

The technical design of the AT-40 focuses heavily on high acoustic efficiency, allowing the speakers to achieve theater-like volume levels without needing high-end, high-wattage power amplifiers. Specification 3-Way Floorstanding, Bass-Reflex (Ported Enclosure) Frequency Response 30 Hz – 22 kHz Power Handling (Continuous/RMS) Maximum Power Capacity Sensitivity (1W @ 1m) Nominal Impedance Crossover Frequencies 400 Hz / 3,000 Hz High-Frequency Protection PTC (Positive Temperature Coefficient) Resettable Fuse Dimensions (H x W x D) 730 mm x 365 mm x 320 mm (approx. 28.7" x 14.3" x 12.6") Driver Configuration and Cabinet Design cerwin vega at40 specs

strikes a perfect middle ground within the "Audio Theater" (AT) series. It delivers massive, floor-shaking sound pressure levels without requiring a high-end, high-wattage power amplifier. Cerwin-Vega AT-40 Core Specifications

Spring-loaded terminal clips or screw terminals (depending on production year)

While not considered "audiophile" in the sense of clinical, flat accuracy, the AT-40 excels at high-volume playback and deep bass response. Owners often describe them as "party speakers" because their high sensitivity allows them to be driven easily by even modest amplifiers. These Speakers Absolutely Changed My Life | Specification | Detail | | --- |

The #1 enemy. The iconic orange foam surround on the 10" woofer will disintegrate. It is not a matter of "if," but "when."

The inclusion of front-mounted level controls for midrange and treble is a valuable feature. This allows you to tailor the speaker's balance to your room's acoustics and your personal taste, a rarity in many modern speakers.

: They are characterized by a "V-shaped" sound signature—emphasized bass and crisp highs. While they may lack the pinpoint imaging of modern audiophile monitors, they excel at filling large rooms with dynamic, high-impact sound. Note: Some values vary slightly between the early

5-inch cone driver optimized for vocal clarity and midrange presence.

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The "secret sauce" of the AT40 is the driver selection.