The cabinet is constructed from 3/4" MDF with internal bracing. At 52 lbs each, they are solid but not impossible to move. The vinyl veneer finish is functional but not high-end furniture grade—these are workhorse speakers, not art pieces. | 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 |
If you are hunting for a pair of vintage Cerwin Vegas or considering a restoration project, understanding the is essential. This article breaks down every technical detail, from frequency response to crossover points, and explains what those numbers mean for your listening experience. Overview: The AT Series Before diving into the raw data, it is important to understand where the AT-40 fits in Cerwin Vega’s history. The AT (Audio Technology) series emerged in the late 1980s and early 1990s as a bridge between the ultra-efficient "D" series and more refined, home-theater-friendly designs. The AT-40 represents the smaller tower in that series, designed for medium to large rooms where deep bass and high output are priorities, but floor space is somewhat limited. cerwin vega at-40 specs
Warning : The Achilles’ heel of old CV speakers is the foam surround on the woofer. After 20-30 years, the foam rots. If you’re buying used AT-40s, factor in a re-foam kit (~$30-50 per pair). The 8-ohm nominal impedance is amplifier-friendly. Most solid-state receivers from the 1990s onward will have no trouble driving these. The crossover points— 500 Hz and 5 kHz —are well chosen. The woofer handles the lower frequencies where cone breakup isn’t an issue, the midrange covers the entire vocal and upper bass region, and the tweeter only handles the top octaves. This results in smooth polar response. The cabinet is constructed from 3/4" MDF with
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. At 93 dB sensitivity , the AT-40 is highly efficient. This means that with just 1 watt of power (measured at 1 meter), the speaker produces 93 decibels of sound. By comparison, many modern bookshelf speakers hover around 85-87 dB. | Model | Woofer | Sensitivity | Frequency