The is set at frequencies of approximately 800 Hz and 5,000 Hz. This carefully chosen dividing network ensures that the 12-inch woofer handles the deep bass and lower midrange (where cabinet resonance matters most), the 4-inch driver handles the critical vocal range, and the tweeter delivers only the highest harmonics and cymbal crash.
Here are the factory specs as published in the original Cerwin Vega product literature (circa 1988-1991). Note: Some values vary slightly between the early and late production runs.
The AT-40 was the entry point to this serious lineup—a compact bookshelf/monitor that could still rock a house party but wanted to be taken seriously for critical listening. cerwin vega at40 specs
The 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)
| Feature | | JBL L80T | Klipsch KG 4.2 | | :--- | :--- | :--- | :--- | | Woofer | 10" (Foam) | 10" (Rubber) | Dual 10" Passive | | Sensitivity | 94 dB | 89 dB | 94 dB | | Power Handling | 125W Peak | 150W Peak | 100W Peak | | Tweeter | 1" Soft Dome | 1" Titanium | 1" Horn | | Typical Used Price | $150 - $250 | $600 - $900 | $400 - $600 | | Best For | High volume, EDM, Rock | Critical listening, Jazz | Home theater, Classic rock | The is set at frequencies of approximately 800
If you are ready to take on the project of restoring a classic pair, they offer a unique and timeless coolness that is hard to find in modern speakers.
The 10-inch woofer is the heart of the system. Its large surface area and the compliant, long-throw capabilities enabled by the foam surround allow it to move significant amounts of air, resulting in the powerful, chest-thumping bass that Cerwin-Vega is famous for. The foam surround isn't just for show; it's a key part of the driver's suspension and contributes directly to the speaker's high sensitivity. Note: Some values vary slightly between the early
A speaker's crossover is its "traffic cop," directing the right frequencies to the right drivers. The AT-40 uses a passive crossover network with two main crossover points:
The "AT" series (including the AT-40) is distinct from the more common "AT" (Acoustic Thunder) series from the late 1980s/early 1990s. The AT-40 is a later model (circa late 1990s to early 2000s), often considered part of the "Intensity" or transitional series, featuring a more modern, curved cabinet design while retaining Cerwin-Vega's signature high-efficiency, high-output philosophy.