Alpine BRV-S40 BassRev™ 4" 2-Way Car Speakers Motorcycle Subwoofers plus satellite radio when you

plus satellite radio when you add an optional tuner

93 Grilles Both White & Charcoal Crossover (rec

4 pair of 8" wide-frequency range mid-bass speakers

Equipped with BLUETOOTH wireless technology and the Qualcomm® aptX™ HD audio codec

5 Equivalent Compliance (Vas) 2

Alpine BRV-S40 BassRev™ 4" 2-Way Car Speakers Motorcycle Subwoofers plus satellite radio when youHigh res audio certified The Alpine BRV S40 4" coaxial 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 coaxial speakers combine rigid, high excursion woofers with 3 4" tweeters in a combo that Alpine has designed and tested to maximize the Optim DSP output from select Alpine amplifiers. The woofer features Alpine's new H. E. D. G. E. multi roll surround with a