Cerwin Vega At40 Specs [exclusive] Jun 2026
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
Positive Temperature Coefficient (PTC) automatic reset circuit
35 Hz – 22,000 Hz (delivering deep bass extension well into the sub-bass territory). Power Handling: 5 Watts minimum to 150 Watts maximum RMS. Peak Power: Capable of handling peaks up to 400 Watts.
: 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. cerwin vega at40 specs
Understanding a spec sheet is one thing; knowing how the AT40 behaves in a living room is another.
turns minor amplifier power into acoustic thunder. A modest 20-to-50-watt vintage receiver can effortlessly drive these speakers to party-level volumes.
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. The technical design of the AT-40 focuses heavily
provides a deep, punchy low-end extension down to 30 Hz without needing an external subwoofer. Because it utilizes a 10-inch woofer rather than the massive 15-inch cones found on its larger sibling, the AT-100, the Go to product viewer dialog for this item.
One of the best features of the AT-40 is the inclusion of adjustable high-frequency and mid-frequency potentiometers (dials) on the rear terminal plate. These dials allow you to manually boost or cut the output of the tweeter and midrange driver to match your room acoustics or personal taste. Additionally, these speakers feature built-in circuit breaker protection to safeguard the delicate drivers from accidental power surges or amplifier clipping. Sound Signature and Performance Extreme Efficiency (97 dB Sensitivity)
The 5-inch midrange ensures that vocals and guitar frequencies remain clear, while the 1-inch tweeter handles the high frequencies with precision. The combination of these drivers results in a "live" sound, often compared to PA systems, making them perfect for rock, metal, and electronic music. 4. Build and Aesthetics Power Handling: 5 Watts minimum to 150 Watts maximum RMS
Like its siblings, it features the iconic red-ringed woofer and a bass-reflex cabinet designed to "move the air".
Old CVs are often criticized for harsh horns and one-note bass. The AT-40 is different:
: Interestingly, for the European market, many AT series cabinets were constructed under license at the famous Dali factory in Denmark using original American drivers and crossovers. This hybrid build often resulted in a slightly tighter, more rigid cabinet construction than their pure-American counterparts. Restoring and Maintaining Vintage AT-40 Speakers Because the Cerwin-Vega AT-40