At40 Specs - Cerwin Vega
The Cerwin-Vega AT40 is a legendary loudspeaker that has been a staple in the music industry for decades. Known for its exceptional sound quality, durability, and affordability, the AT40 has become a favorite among audiophiles, musicians, and music enthusiasts alike. In this article, we'll take a closer look at the Cerwin-Vega AT40 specs, exploring its features, design, and performance.
The fast transient response of the woofers makes them superb for the punchy bass needed in rock or modern electronic music.
Old CVs are often criticized for harsh horns and one-note bass. The AT-40 is different:
The Cerwin-Vega AT40 is part of a larger family of loudspeakers, including the popular Cerwin-Vega XLS and SL series. Here's a brief comparison:
The company’s commitment to realistic, impactful sound reached a cultural peak in the 1970s when it co-developed "Sensurround," a low-frequency effects system used in the 1974 disaster film Earthquake to create physical vibrations in movie theaters. This expertise in powerful, low-distortion bass would become the signature trait of their consumer products for years to come. The AT-40 speakers are a prime example of that legendary design philosophy, belonging to a lineage of speakers built to rock. cerwin vega at40 specs
According to factory specifications, the AT-40 achieves a . The extension down to 32 Hz is remarkable for a speaker of this era and size. Where many floor-standing speakers of the late 80s rolled off sharply at 45 Hz, the AT-40 digs into true sub-bass territory. This is achieved through the front-firing ported enclosure . The rectangular port, flared to reduce chuffing (air noise), is tuned to a low frequency, trading off group delay (slightly "looser" bass) for sheer depth and output.
The Cerwin-Vega AT-40 is a vintage three-way bass reflex loudspeaker known for its high efficiency and signature "loud" sound profile. Introduced as part of the AT (Arc) series, these speakers were specifically designed to deliver high sound pressure levels with minimal amplifier power. Design: 3-way, Bass Reflex (ported) cabinet. Power Handling: 125 Watts. Frequency Response: 30 Hz – 22 kHz. Sensitivity: 95 dB (1 Watt @ 1 Meter). Nominal Impedance: 6 Ohms. Crossover Frequencies: 400 Hz and 3000 Hz.
The original red foam surrounds are notorious for "foam rot"—a natural degradation where the foam crumbles away over 20–30 years. Do not let rotted foam scare you away from a purchase; re-foaming kits are cheap ($20–$30) and widely available online. It is a straightforward DIY project that restores the woofer to factory specs.
) means it can produce high volume levels even with relatively low-powered amplifiers. Cerwin-Vega SL-12 Learn about Cerwin-Vega's legacy of high-quality audio The Cerwin-Vega AT40 is a legendary loudspeaker that
The Cerwin-Vega AT40 is a 3-way, bi-amped loudspeaker that was first introduced in the 1990s. Here are its key specs:
Before diving into the specifics of the AT-40, it's worth understanding the company behind it. Cerwin-Vega was founded in 1954 by aerospace engineer Gene Czerwinski with a singular goal: to accurately reproduce the power and emotion of a live musical experience. This dedication to high-output audio was evident early on, with the company producing an 18” speaker capable of a staggering 130 dB at 30 Hz and even creating the world’s first solid-state amplifier in 1957.
The Cerwin-Vega AT40 offers several features that make it a popular choice among music enthusiasts:
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 fast transient response of the woofers makes
While the imaging is not as pinpoint-accurate as modern, narrow-baffle audiophile towers, the AT-40 throws a massive, wide soundstage that easily fills large open-concept rooms. Tips for Buying Vintage or Restoring Cerwin-Vega AT-40s
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
This speaker is highly efficient (approx. 98 dB sensitivity ). This means it requires very little amplifier power to produce loud volumes. While many high-end audiophile speakers require massive amps to drive them, the AT-40s can rock the house with even a modest receiver, making them easy to drive.