A healthy driver should read between 4.5 to 5.5 Ohms. If the meter reads "OL" (Open Loop) or infinity, the voice coil is blown. You will need to source a replacement diaphragm or send the tweeter to a vintage audio repair specialist for a voice coil rewind. Conclusion
Once your structural and electrical fixes are complete, run a complete sweep to ensure the AT-40s function flawlessly: cerwin vega at40 specs fix
On paper, it was a 10uF capacitor. On the meter, one read 6.2uF and the other was nearly a short. A healthy driver should read between 4
When an AT-40 stops sounding its best, the root cause usually boils down to three categories: physical degradation of the speaker surrounds, electrical failure in the crossover/controls, or a blown driver voice coil. 1. Visual Inspection: The "Red Ring of Rot" Conclusion Once your structural and electrical fixes are
Do not throw away your woofers just because the foam is gone! Re-foaming is an affordable DIY project that restores factory performance. You can purchase a 10-inch Cerwin-Vega style re-foam kit online (ensure it includes the correct red foam and speaker glue).