Cerwin Vega At-40 Specs › 〈Safe〉
Based on user reviews and technician measurements, the Cerwin Vega AT-40 delivers:
The Cerwin-Vega AT-40 remains a respected vintage loudspeaker for listeners prioritizing efficiency, dynamics, and bass impact over absolute flat frequency response. Its 96 dB sensitivity allows it to pair with a wide range of amplifiers, from vintage receivers to modern Class D designs. While not a studio monitor, it excels in home theater, rock music playback, and any application requiring high output with moderate amplifier power. Collectors and enthusiasts should verify foam surround condition before purchase, but fully restored AT-40s offer exceptional value in the used market.
Document prepared for audio engineering reference. Specifications compiled from original service manuals, user reviews, and contemporary loudspeaker measurements.
The Legendary Cerwin-Vega AT-40: Compact Powerhouse Specs If you are a fan of vintage audio that hits hard and plays loud, you likely already know the Cerwin-Vega AT Series
. While the massive AT-100 (AT-15) often steals the spotlight, its smaller sibling, the Cerwin-Vega AT-40
, is a hidden gem for those who want that signature "rock and roll" sound in a more manageable footprint.
Introduced in the late 1980s, the AT-40 (sometimes marketed as the AT-10 in certain regions) carries the brand's reputation for high efficiency and chest-thumping bass. Classic Audio Technical Specifications cerwin vega at-40 specs
The AT-40 is a 3-way floorstanding speaker designed with a bass-reflex (ported) enclosure. Classic Audio Frequency Response: 30 Hz – 22 kHz Power Handling: 125 Watts (RMS/Program) Sensitivity: 95 dB (1W/1m) Nominal Impedance: Crossover Points: 400 Hz / 3,000 Hz Protection:
Built-in PTC (Positive Temperature Coefficient) tweeter protection Dimensions (H x W x D): Approx. 28.7" x 14.3" x 12.6" (730 x 365 x 320 mm) Classic Audio Driver Layout & Design
True to the "AT" (Advanced Technology) lineage, the AT-40 features a high-output driver array:
10-inch high-excursion driver, typically featuring the iconic red foam surround. 5-inch cone driver for handling presence and vocals.
1-inch Mylar dome tweeter for crisp high-frequency reproduction. What Makes it a Classic? Cerwin-Vega AT-100 Loudspeakers (Vintage) - Facebook
The Cerwin Vega AT-40 is a classic 3-way floor-standing loudspeaker from the brand's legendary AT (Arc) series, known for delivering high output and "rock-and-roll" energy with minimal power. Often referred to as "The Rocker's Choice," it features a bass-reflex design that prioritizes high sensitivity and powerful low-end response. Technical Specifications Based on user reviews and technician measurements, the
The following specifications define the core performance of the Cerwin Vega AT-40 Frequency Response: 30 Hz to 22 kHz. Power Handling: 125 Watts RMS (Continuous/Program).
Sensitivity: 95 dB (1W/1m), allowing for high volume levels even with lower-powered amplifiers. Nominal Impedance: 6 Ohms. Crossover Points: 400 Hz and 3,000 Hz.
Protection: Integrated self-resetting PTC protection for the drivers. Physical Dimensions and Build
is a substantial floor-standing unit designed for serious home audio setups.
Dimensions (H x W x D): Approximately 730mm x 365mm x 320mm (28.7" x 14.4" x 12.6"). Enclosure Type: 3-way bass-reflex (ported) cabinet.
Driver Configuration: Typically consists of a dedicated woofer for low frequencies, a cone-based mid-range driver, and a tweeter for high frequencies. Key Performance Features High Efficiency: With a sensitivity of 95 dB, the Impedance: 8 ohms (nominal) – Drops to ~6
is significantly more efficient than standard bookshelf speakers, meaning it can produce loud, clear sound with relatively little input power.
Robust Protection: The use of a self-resetting PTC (Positive Temperature Coefficient) device helps protect the internal components from damage during high-volume playback or power surges. Bass Performance : Like most Cerwin Vega speakers of its era, the
is engineered for a punchy, impactful bass that is ideal for rock, metal, and electronic music. Legacy and Application
The AT series remains popular among vintage audio collectors for its durability and distinct aesthetic, often featuring the signature orange-ringed woofers. While many modern receivers can drive a 6-ohm load, enthusiasts often recommend using high-quality power amplifiers to fully exploit the speaker's dynamic range and headroom. to other models in the AT series, or These Speakers Absolutely Changed My Life
Understanding the numbers is one thing. Knowing how they affect your listening experience is another.
The 8-ohm nominal impedance is amplifier-friendly. Most solid-state receivers from the 1990s onward will have no trouble driving these. The crossover points—500 Hz and 5 kHz—are well chosen. The woofer handles the lower frequencies where cone breakup isn’t an issue, the midrange covers the entire vocal and upper bass region, and the tweeter only handles the top octaves. This results in smooth polar response.
The 2nd-order Linkwitz-Riley crossover topology means a 12 dB/octave slope, providing good off-axis summing and minimal phase shift.


