Cerwin Vega At-40 Specs 💯
The AT-40 differs from budget CV models by including a dedicated midrange driver (many cheaper speakers use a woofer-tweeter two-way design). The 5.25" coated paper cone handles critical vocal and instrument frequencies from 500 Hz to 5 kHz, reducing intermodulation distortion.
The 1" soft-dome tweeter with ferrofluid cooling ensures smooth high-frequency extension without the harshness of cheaper metal-dome tweeters. Ferrofluid also improves power handling, preventing thermal compression during high-volume playback.
Takeaway: The AT-40 is surprisingly refined for a CV speaker. Vocals are clear, cymbals have sparkle but not sibilance, and the midrange isn't overly recessed.
When audiophiles talk about speakers that deliver a visceral, heart-thumping experience, one name consistently rises above the rest: Cerwin Vega. Known for their distinctive red foam surrounds and legendary efficiency, Cerwin Vega has been the go-to brand for rock, electronic, and home theater enthusiasts for decades. Among their celebrated lineup, the Cerwin Vega AT-40 stands as a perfect representation of the brand’s philosophy: loud, clear, and fun.
If you are considering buying a used pair, restoring a vintage set, or simply curious about how these acoustic titans work, you need the complete picture. Below is the definitive guide to the Cerwin Vega AT-40 specs, including design nuances, performance metrics, and how they compare to modern speakers.
Below is the official specification sheet for the Cerwin Vega AT-40. Note that these figures are from original Cerwin Vega literature. Variations may exist in different production runs (e.g., early vs. late 1990s models).
| Specification | Detail | |---------------|--------| | System Type | 3-way, bass-reflex floor-standing loudspeaker | | Woofer | 10" (254mm) cast-frame woofer with CV’s proprietary foam surround | | Midrange | 5.25" (133mm) coated paper cone | | Tweeter | 1" (25mm) soft-dome ferrofluid-cooled tweeter | | Frequency Response | 32 Hz – 20 kHz (± 3 dB) | | Sensitivity (1W/1m) | 93 dB | | Nominal Impedance | 8 ohms | | Power Handling (RMS) | 150 watts | | Power Handling (Peak) | 300 watts | | Crossover Frequencies | 500 Hz / 5 kHz (2nd-order Linkwitz-Riley) | | Recommended Amplifier Power | 20 – 250 watts per channel | | Enclosure Type | Vented (rear-firing port) | | Dimensions (H x W x D) | 35" (889mm) x 14" (356mm) x 12" (305mm) | | Weight (per speaker) | 52 lbs (23.6 kg) |
If you want, I can:
The Cerwin Vega AT-40 is a vintage 3-way bass-reflex floorstanding speaker known for its high efficiency and powerful output, typical of the "Loud Speaker" legacy established by the brand. It is part of the AT (Advanced Technology) series, which is highly regarded for its robust power handling and suitability for loud listening environments. Technical Specifications
The following specifications are based on documented vintage audio records: Frequency Response: . Power Handling: (RMS). Sensitivity:
(measured at 1 Watt/1 Meter), allowing it to reach high volumes even with lower-powered amplifiers. Nominal Impedance: . Crossover Points: and . cerwin vega at-40 specs
Protection: Features a PTC (Positive Temperature Coefficient) resistor to protect the tweeter from overloading. Physical Dimensions Height: ( ). Width: ( ). Depth: ( ). Key Performance Features High Efficiency: With a sensitivity of
, these speakers are extremely efficient, making them compatible with a wide range of vintage and modern receivers.
3-Way Design: The system utilizes dedicated drivers for low, mid, and high frequencies to maintain clarity across the range.
Bass Reflex Cabinet: The ported enclosure is designed to enhance low-frequency response, providing the "room-shaking" bass Cerwin Vega is famous for. Maintenance Tip
Like many vintage Cerwin Vega models, the woofer surrounds are made of foam which can deteriorate over time. If the bass sounds distorted or the foam looks cracked, you may need a refoam kit, which is a common and straightforward repair for these units. Learn about Cerwin-Vega's legacy of high-quality audio
The Cerwin-Vega AT-40 is a vintage floor-standing speaker from the "Acoustic Transformer" series, launched in the late 1980s. Known for high efficiency and substantial power handling, it was designed to deliver high sound pressure levels with minimal amplifier effort, making it a popular choice for large rooms or high-volume listening environments. Core Specifications
is a three-way speaker system designed for clarity and dynamic output across the frequency spectrum. Frequency Response: 30 Hz – 22 kHz. Power Handling: 125 Watts.
Sensitivity: 95 dB (1W/1m), indicating it is highly efficient and can be driven easily by lower-powered amplifiers. Nominal Impedance: 6 Ohms. Crossover Points: 400 Hz and 3,000 Hz. Physical Characteristics Dimensions:
Protection: Features PTC (Positive Temperature Coefficient) protection to prevent damage from power surges or overdriving. Performance Profile
As part of the AT (Acoustic Transformer) series, these speakers were engineered to mimic the high-output characteristics of arena PA systems while maintaining a residential form factor. The AT-40 differs from budget CV models by
Bass Performance: Like other models in the series (such as the Cerwin-Vega AT-12 or AT-15
is noted for its "punchy" bass and ability to sustain high volumes without significant distortion.
Ideal Use Case: They are particularly effective in large rooms where "huge bass" and loud high frequencies are desired. While they may not be the first choice for "quiet, detailed critical listening," they excel in delivering an impactful, "party-ready" sound. Cerwin Vega AT-40 - Classic Audio
The Cerwin-Vega AT-40 is a classic three-way, bass-reflex floor-standing speaker known for delivering the "legendary CV sound"—high efficiency and high output. Often associated with the 1980s and early 90s, the AT (Acoustic Transformer) series was designed to provide room-shaking bass and high sound pressure levels with relatively modest power requirements. Core Technical Specifications
The AT-40 is engineered as a high-performance, passive full-range speaker. Its primary technical details include: Frequency Response: 30 Hz to 22 kHz. Power Handling: 125 Watts (RMS). Sensitivity: 95 dB (measured at 1 Watt @ 1 Meter). Nominal Impedance: 6 Ohms. Crossover Points: 400 Hz and 3000 Hz.
Protection: Self-resetting PTC (Positive Temperature Coefficient) device for tweeter safety. Driver Configuration & Build
The AT-40 utilizes a three-way driver arrangement designed for impactful low end and clear highs: Woofer: 10-inch (ATW10) low-frequency driver.
Enclosure Type: Bass-reflex (vented) design to maximize efficiency and bass extension. Physical Dimensions: 730 mm (H) x 365 mm (W) x 320 mm (D).
Finish: Typically featured a scuff-resistant walnut vinyl or similar classic aesthetic. Regional Production Background
While designed by Cerwin-Vega in the United States, models for the European market, including the AT-40, were often built at the Dali factory in Denmark under license. These European units typically used drivers and crossovers imported from America while the cabinets were constructed in Denmark. Performance Characteristics Cerwin Vega AT-40 - Classic Audio The Cerwin Vega AT-40 is a vintage 3-way
The Cerwin-Vega AT-40 is a vintage three-way floorstanding speaker from the popular "AT" (Advanced Technology) series, which was notably manufactured at the Dali factory in Denmark for the European market
. It is characterized by the classic Cerwin-Vega "loud and punchy" sound, featuring the iconic red-surround woofer. Technical Specifications Speaker Type 3-way, Bass Reflex (Ported) Frequency Response 30 Hz – 22 kHz Power Handling 125 Watts (RMS/Continuous) Sensitivity 95 dB (1W @ 1m) Nominal Impedance Crossover Frequencies 400 Hz and 3,000 Hz Protection Self-resetting PTC (Tweeter protection) Dimensions (H x W x D) 730 x 365 x 320 mm (~28.7" x 14.4" x 12.6") Key Characteristics Driver Configuration
: Features a 10-inch woofer (model ATW10), a dedicated midrange cone, and a high-frequency tweeter. European Heritage
: While the drivers and crossovers were typically imported from the US, the cabinets for European AT-series models like the AT-40 were often built in Denmark. High Efficiency
: With a sensitivity of 95 dB, these speakers can reach high volumes even with relatively low-powered amplifiers. Maintenance Tip
: Like most vintage Cerwin-Vegas, the original foam surrounds on the woofers often deteriorate over time and require a replacement foam kit to maintain bass performance. Are you looking to a pair of these, or do you already own them and need repair advice
The specs suggest 100W RMS / 200W peak. However, because the sensitivity is so high, you must be careful with amplifier clipping.
| Model | Woofer | Sensitivity | Frequency Response | Power Handling | |-------|--------|-------------|-------------------|----------------| | AT-40 | 10" | 93 dB | 32 Hz - 20 kHz | 150W RMS | | AT-12 | 12" | 94 dB | 28 Hz - 20 kHz | 175W RMS | | AT-15 | 15" | 95 dB | 24 Hz - 20 kHz | 200W RMS | | D-5 | 10" | 91 dB | 39 Hz - 20 kHz | 100W RMS |
The AT series generally offers deeper bass extension and higher power handling than the earlier "D" series at comparable woofer sizes. The AT-40, specifically, outperforms the D-5 in both low-end reach (32 Hz vs. 39 Hz) and power capacity.
| Parameter | Measurement | |-----------|-------------| | Height | 28 inches (711 mm) | | Width | 15 inches (381 mm) | | Depth | 12 inches (305 mm) | | Weight (each) | 42 lbs (19 kg) |