Cerwin Vega — At40 Specs
| Parameter | Specification | |-----------|----------------| | Configuration | 3-way, bass reflex (ported) | | Recommended Amplifier Power | 20 – 200 Watts RMS | | Sensitivity (1W/1m) | 95 dB | | Nominal Impedance | 8 Ohms | | Frequency Response | 32 Hz – 20 kHz (±3 dB) | | Crossover Frequencies | 500 Hz / 3.5 kHz | | Peak Power Handling | 300 Watts | | Enclosure Type | Vented (rear-firing port) | | Binding Posts | Dual 5-way binding posts (bi-wire/bi-amp capable) |
If you find a pair of Cerwin Vega AT40s with intact cabinets, buy them. Budget $50 for a re-foam kit and one afternoon of work. Once restored, these speakers will give you a 38Hz low end and party-level volume that puts most modern $1,000 bookshelf speakers to shame. The specs don't lie—this is a high-efficiency legend.
Have a pair of AT40s? Check the serial numbers on the back; early production runs (1988-1989) used a slightly different 4-ohm tweeter. Always verify impedance with a multimeter before cranking the volume.
The AT-40 is a three-way, bass-reflex design, a configuration Cerwin Vega has long mastered. The specifications begin with the low-frequency driver: a 12-inch cast-frame woofer. Unlike cheaper stamped steel frames, the cast frame ensures rigidity, reducing unwanted resonances at high volumes. This woofer features the iconic Cerwin Vega "red surround"—a treated foam or cloth roll that is notably more durable and compliant than standard foam, allowing for the extreme cone excursion required to produce the brand's signature "heart-thumping" bass. The spec sheet lists the woofer's impedance at 8 ohms (nominal), making the AT-40 an easy load for most receivers and amplifiers.
Moving to the midrange, the AT-40 employs a 4-inch cone driver, rather than a dome. This design choice prioritizes dynamic range and power handling over ultimate transparency. The midrange cone is typically treated paper or polypropylene, chosen for its natural damping properties. High frequencies are handled by a 1-inch phenolic dome tweeter. While modern soft-dome tweeters offer sweeter highs, the phenolic dome is legendary for its ruggedness; it can handle significant power without distortion and is highly resistant to being blown out at high volumes.
Analyzing the specs reveals the AT-40's personality. The high 102 dB sensitivity explains the speaker's lively, dynamic presentation—whispers are clear, and explosions are instantaneous. The 32 Hz low-end spec explains the visceral, chest-thumping bass. However, the spec sheet also hints at the compromises. The phenolic dome tweeter, while durable, is less airy and detailed than fabric or metal domes. The large ported enclosure, while deep, can sound "one-note" on complex acoustic bass lines compared to a sealed or transmission-line design.
In conclusion, the Cerwin Vega AT-40 is not a studio monitor; it is a statement of intent. The specifications tell a story of raw efficiency, massive displacement, and rugged construction. If your goal is to feel the kick drum in your ribcage, to fill a large living room with sound without buying a separate subwoofer, or to simply own a piece of high-efficiency history, the AT-40’s specs are a blueprint for success. They are the technical manifestation of Cerwin Vega’s motto: “Live… Loud.”
The Cerwin-Vega AT-40 is a vintage floor-standing loudspeaker from the "Audio Theater" (AT) series, known for the brand's signature high efficiency and punchy, concert-level bass. Often sought after by collectors of "rock and roll" audio, the
represents a mid-to-large tier in a lineup designed to deliver massive volume with minimal amplifier power. Technical Specifications
Based on verified data for the AT series and specific repair profiles for the , the primary specifications are as follows: Cerwin-Vega Vintage Speakers for sale - eBay
The Cerwin Vega AT-40 is a vintage three-way floorstanding speaker from the "AT" (Advanced Technology) series, produced in the late 1980s and early 1990s. Known for its high efficiency and "party speaker" reputation, it was designed to deliver high volume levels even with relatively low-powered amplifiers. Key Technical Specifications Specification System Type 3-way bass reflex (ported) Frequency Response 30 Hz – 22 kHz Power Handling 125 Watts (RMS/Maximum) Sensitivity 95 dB (1W/1m) Impedance Crossover Points 400 Hz and 3000 Hz Protection PTC (Self-resetting tweeter protection) Dimensions (H x W x D) 730 x 365 x 320 mm (approx. 28.7" x 14.4" x 12.6") Driver Configuration
Woofer: 10-inch ATW10 driver featuring the signature orange foam surround. Midrange: Dedicated cone driver for vocal clarity.
Tweeter: High-frequency driver with internal protection circuitry. Performance Review & Sound Profile
The Cerwin Vega AT-40 is a vintage 3-way floorstanding speaker known for its high efficiency and punchy bass, common to the AT (Advanced Technology) series. These speakers were often manufactured at the Dali factory in Denmark for the European market using American-made drivers. Core Specifications Speaker Type: 3-Way Bass Reflex (Ported) cerwin vega at40 specs
Woofer: 10-inch ATW10 driver with the signature red foam surround Frequency Response: 30 Hz – 22 kHz Power Handling: 125 Watts (Continuous)
Sensitivity: 95 dB (1W/1m), making them very efficient and easy to drive with low-power amplifiers Nominal Impedance: 6 Ohms Crossover Frequencies: 400 Hz and 3,000 Hz
Protection: Self-resetting PTC circuit breaker for the tweeter Physical Dimensions Height: 730 mm (approx. 28.7 inches) Width: 365 mm (approx. 14.4 inches) Depth: 320 mm (approx. 12.6 inches) User Insights & Maintenance Cerwin-Vega SL Series Home Audio Speakers & Subs
High power output, punchy bass and vocal clarity falling all together within this speakers. Cerwin Vega
The Cerwin-Vega AT-40 is a vintage floor-standing loudspeaker from the celebrated AT (Advanced Technology) series, produced during the late 1980s and early 1990s. Known for their high efficiency and "rock and roll" sound signature, these speakers were designed to deliver high sound pressure levels with minimal amplifier power. Core Technical Specifications
is a 3-way bass reflex system that balances Cerwin-Vega's signature deep bass with a more refined high-frequency response than earlier "D" series models. Frequency Response: 30 Hz – 22 kHz. Power Handling: 125 Watts (Continuous/RMS). Sensitivity: 95 dB (1 Watt @ 1 Meter). Nominal Impedance: 6 Ohms. Crossover Frequencies: 400 Hz and 3000 Hz.
Protection: Equipped with a PTC (Positive Temperature Coefficient) self-resetting circuit protector for the tweeter. Driver Configuration
features a classic three-driver layout designed for high-impact audio:
Low Frequency (Woofer): 10-inch high-excursion driver with a cast aluminum frame. European versions, often built under license at the Dali factory in Denmark, typically utilized the ATW10 woofer.
Mid Frequency: 5-inch cone driver optimized for vocal clarity and midrange presence.
High Frequency: 1-inch microcell polymer dome tweeter. This represented a departure from traditional horn-loaded tweeters, offering a smoother, less "shouty" high-end. Design and Build
Enclosure Type: Bass reflex (ported) design with a wood-grain vinyl finish. Dimensions: Approximately
Controls: Integrated high-frequency and midrange level controls on the cabinet allow users to tailor the output to their room's acoustics. Have a pair of AT40s
Connectors: Standard spring clips or binding posts (varying by region). Sound Profile and Legacy
is widely regarded as an "all-rounder" in the vintage Cerwin-Vega lineup. While not strictly "audiophile" by modern clinical standards, it excels at high-energy music genres like rock and electronic dance. Its high sensitivity of 95 dB means it can be driven effectively by modest 20-watt amplifiers, though it has enough headroom to handle larger power sources for room-shaking output.
Maintenance Note: Like most vintage Cerwin-Vega speakers, the
's original foam woofer surrounds are prone to dry rot over time and frequently require "re-foaming" to maintain original bass performance.
The Cerwin-Vega AT-40 is a vintage 3-way floor-standing speaker, part of the AT (Advanced Technology) series released in the late 1980s. Designed for the European market, it is equivalent to the AT-10 in North America but often featured cabinets built at the Dali factory in Denmark. Core Specifications
is known for its high efficiency and signature "loud" sound profile. Design: 3-Way, Bass Reflex (ported) cabinet. Drivers: Woofer: 10-inch (ATW10). Midrange: 5-inch. Tweeter: 1-inch. Frequency Response: 30 Hz – 22 kHz. Power Handling: 125 Watts. Sensitivity: 95 dB (1W/1m). Impedance: 6 Ohms. Crossover Points: 400 Hz and 3,000 Hz. Protection: Self-resetting PTC for the tweeter. Dimensions: ~730 x 365 x 320 mm (H x W x D). Review Summary
, like most Cerwin-Vegas of its era, is built for Rock, Rap, and High-Energy music.
The most "solid" feature of the Cerwin-Vega AT-40 is its massive 12-inch woofer paired with a massive 200-watt power handling capability.
Here is why this feature stands out:
1. Room-Shaking Bass (The "Vega" Sound) While most bookshelf speakers in this class utilize 6-inch or 8-inch woofers, the AT-40 utilizes a 12-inch cast-frame woofer. This large surface area allows the speaker to move a significant volume of air, delivering deep, visceral bass that you can feel. This creates a "live concert" or "movie theater" experience without necessarily needing a subwoofer.
2. High Efficiency (Loudness) 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.
3. Built Like a Tank The "AT" stands for "Atlas," and the build quality matches the name. The woofer features a cast-aluminum frame (rather than stamped metal), which is more rigid and resonance-resistant. Combined with a rugged cabinet design, this allows the speaker to handle high power (200 watts RMS / 400 watts peak) without distortion or mechanical failure.
Summary Spec Highlight:
The story of the Cerwin Vega AT-40 is one of classic American muscle meeting European manufacturing. Part of the legendary AT (Arc) series from the late 1980s, these speakers were built under license at the Dali factory in Denmark using drivers and crossovers imported directly from the US.
While models like the massive AT-100 (AT-15) dominated huge rooms, the
was the mid-sized powerhouse of the family, built for those who wanted that signature Cerwin-Vega "Earthquake" bass in a more manageable footprint. Technical Specifications
was designed for high efficiency, meaning it could reach party-starting volumes even with modest amplification. Specification Frequency Response 30Hz – 22kHz Power Handling 125 Watts (RMS) Sensitivity 95 dB (1W @ 1m) Impedance Crossover Points 400 Hz / 3000 Hz Woofer 10-inch ATW10 Dimensions 730mm x 365mm x 320mm (H x W x D) Protection PTC (Self-resetting circuit protection) The "Party Speaker" Legacy
fits perfectly into the Cerwin-Vega narrative: it wasn't built for quiet, analytical listening in a library. Its design prioritized impact and dynamics.
High Sensitivity: At 95 dB, it is far more efficient than modern bookshelf speakers, converting more power into pure sound.
Signature Look: Like its siblings, it features the iconic red-ringed woofer and a bass-reflex cabinet designed to "move the air".
Durability: 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 Cerwin-Vega AT-40 is a vintage 3-way floor-standing speaker known for its high sensitivity and punchy bass, making it a popular choice for high-energy music like rock and dance. According to specifications from Classic Audio, these speakers were part of the "AT" (Arc) series and featured a 10-inch woofer, a dedicated midrange driver, and a tweeter. Key Technical Specifications Specification System Type 3-Way, Bass Reflex (ported) Frequency Response 30 Hz – 22 kHz Power Handling 125 Watts (RMS) Sensitivity 95 dB (1 Watt @ 1 Meter) Nominal Impedance Crossover Frequencies 400 Hz / 3,000 Hz Protection PTC (Positive Temperature Coefficient) for tweeter safety Dimensions 730 mm (H) x 365 mm (W) x 320 mm (D) Driver Composition
Low Frequency (LF): Features a 10" (ATW10) woofer, typically identified by the signature Cerwin-Vega red surround.
Mid Frequency (MF) & High Frequency (HF): Includes a dedicated midrange cone and a tweeter protected by a self-resetting circuit breaker to prevent damage during high-volume playback.
The AT series was manufactured under license at the Dali factory in Denmark for the European market, using drivers and crossovers imported from the USA.