Cerwin Vega At-40 Specs ✧

Now let's decode what these numbers mean in practice.

The Cerwin-Vega AT-40 is a high-efficiency, floor-standing loudspeaker produced during the late 1980s to early 1990s as part of the brand’s “AT” (Acoustic Technology) series. Known for their distinct orange surrounds and high sensitivity, Cerwin-Vega speakers have long been associated with professional sound reinforcement and home high-output hi-fi systems. The AT-40 models specifically target users seeking high dynamic range, low distortion at high volumes, and extended low-frequency response without requiring massive amplification.

1. 4-Way Speaker Design Unlike standard 2-way or 3-way speakers, the AT-40 utilizes a sophisticated 4-way driver configuration. This allows the speaker to dedicate specific drivers to specific frequency ranges, ensuring that vocals remain clear, mids are present, and highs sparkle without distortion, even at high volumes.

2. Legendary "Eyes" High-Frequency Driver A signature of the AT series, the AT-40 features Cerwin-Vega’s iconic dome tweeter, often referred to as the "Eyes" due to its distinct visual profile. This driver delivers crisp, room-filling high frequencies with a wide dispersion pattern, ensuring every seat in the house is the "sweet spot."

3. Massive 12-Inch Cast-Frame Woofer At the heart of the AT-40 is a massive 12-inch woofer. Featuring a cast-aluminum frame and a high-excursion cone, this driver is engineered to move serious air. It delivers the chest-thumping bass Cerwin-Vega is famous for, minimizing low-frequency distortion without the immediate need for a subwoofer.

4. High-Efficiency Performance With a sensitivity rating often exceeding 98dB, the AT-40 is incredibly efficient. This means they require less amplifier power to reach cinema-level volumes compared to standard audiophile speakers. They are easy to drive for most AV receivers but truly shine when paired with high-current amplification.

5. Rear-Firing Passive Radiator To extend the low-frequency response even deeper without port noise, the AT-40 utilizes a rear-firing passive radiator. This auxiliary bass radiator reinforces the bottom end, adding weight and impact to action movies and bass-heavy music tracks. cerwin vega at-40 specs

6. Rugged Cabinet Construction Built like a tank, the AT-40 features a dense, non-resonant wood cabinet designed to withstand the physical energy of high-decibel playback. The classic styling often features a wood-grain vinyl finish and a removable grille, showcasing the massive drivers within.


The Cerwin-Vega AT-40 is a vintage floor-standing loudspeaker from the manufacturer’s "AT" (Audio Technology) series, produced during the late 1980s and early 1990s. Renowned for its high efficiency and commanding low-frequency response, the AT-40 is a three-way design that exemplifies the brand's reputation for "loud and clear" audio reproduction.

System Design

Driver Complement

Technical Specifications

Physical Dimensions

Key Features


Note: Specifications can vary slightly depending on the specific production year and revision of the speaker.

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

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 Now let's decode what these numbers mean in practice

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

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 Driver Complement

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


| Measurement | Value | | :--- | :--- | | Height | 36.5 inches (927 mm) | | Width | 13 inches (330 mm) | | Depth | 13.5 inches (343 mm) | | Weight | 55 lbs (25 kg) per speaker |