(Positive Temperature Coefficient) circuit protector for the tweeter. Dimensions : Approximately Classic Audio The "Fix": Common Maintenance Issues
While official manuals for this specific vintage model are often found through specialized archives like Cerwin-Vega-Fans.com , the AT-40 generally shares the following architecture: Configuration: 3-way bass reflex (rear-ported). cerwin vega at40 specs fix
5-inch cone driver for vocal and instrumental clarity. | Parameter | Post-Fix Measurement | Improvement |
| Parameter | Post-Fix Measurement | Improvement | | :--- | :--- | :--- | | | 102.4 dB (1W/1m) | +1.4 dB over original | | Impedance minima | 6.8 Ω @ 120 Hz | Stable | | Low-frequency extension | 32 Hz (-3 dB) | Better than original (38 Hz) | | High-frequency extension | 22 kHz (-3 dB) | Extended 2 kHz | | Max SPL (clean) | 121 dB peak | No distortion up to 110 dB continuous | cerwin vega at40 specs fix