Cerwin Vega At40 Specs Fixed May 2026

Size: 5.25 inches (133 mm)
Design: Sealed back-chamber (to prevent bass modulation)
Cone Material: Polypropylene or coated paper
Surround: Rubber (butyl) for extended durability
Magnet: Shielded ferrite

The "secret sauce" of the AT40 is the driver selection.

Specs don't tell the full story. Here’s how the AT-40 behaves in a room with modern gear. cerwin vega at40 specs