Just like the M4 I posted a couple weeks ago, (See it here)  this S5 owner needed more bass than the factory installed Bang & Oulfsen premium stereo could provide. This car came with an essentially useless donut spare tire so it was removed to make way for this dual Focal 10 inch custom subwoofer […]

Tags: 9500ci, Laser, Radar, s5, Subwoofer, under floor

At CSD Audio, it’s all about clean & stealth. We all want our cars to sound better but don’t want to lose storage space. In this M4, I stashed two Focal Access 10 inch subwoofers in a storage area under the floor. Weight was a major concern for this BMW owner so this box was […]

Tags: bmw, Fiberglass, focal, m4, Subwoofer, under floor