Alpine BRV-S40C BassRev™ 4" Component Speaker System Car Enclosures 25 in / 108 mm

25 in / 108 mm Internal Slot Port Height (SH) 0

especially at higher volume levels

Pioneer’s A-series sound design purposely matches the subwoofer and full-range loudspeakers to provide seamless and smooth sound characteristics with dynamic

they're Hi-Res Audio Certified by the Japan Audio Society (JAS)

Alpine BRV-S40C BassRev™ 4" Component Speaker System Car Enclosures 25 in / 108 mmHigh 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)