Cerwin Vega At40 Specs Fix [new] May 2026

The fixed AT40 is a giant-killer. It is a time capsule that, with 2 hours of work and $50 in parts, will out-perform any $400 Bluetooth speaker on the market. Don't throw them away. Refoam them. Clean the L-Pad. Rock on. Have a unique issue with your AT40s? Check the voice coil resistance with a multimeter (should read 6.2 to 7.2 ohms for the woofer and 4.5 to 5.5 for the tweeter). If you get an "OL" reading, the coil is fried. Time to hunt for salvage parts. Good luck!

Note: NLA = No Longer Available. If a woofer is blown, you are better off buying a used pair of AT40s for parts than finding a new OEM driver. Once you have fixed the stock specs, here are two "pro" fixes to make them sound better than new. cerwin vega at40 specs fix

The AT40 cabinet flexes. Open the woofer hole and glue a 1-inch wooden dowel vertically between the left and right side walls. This stops cabinet resonance. The fixed AT40 is a giant-killer