Alpine BRV-S40C BassRev™ 4" component speaker system subwoofer 8" features or applications never before

features or applications never before possible

Alpine optimizes their R2-S69C 6"x9" 2-way component speaker system for near-perfect sound from premium sources

glass-filled composite polymer frame with neodymium motor

Coaxial Speaker System: 4-inch (100 mm) Woofer

Alpine BRV-S40C BassRev™ 4" component speaker system subwoofer 8" features or applications never beforeHigh res audio certified The Alpine BRV S4C 4" component speakers are an excellent way to add life to your sound. In fact, they're Hi Res Audio Certified by the Japan Audio Society (JAS). These component speakers include a pair of mid bass woofers and a pair of 3 4" tweeters that Alpine has designed and tested to maximize the Optim DSP output from select Alpine amplifiers. The 4" mid bass driver has a HEDGE (High Excursion Design Gathered Edge)