so which is best to use, the crossover from the amp or from the headunit or from the speakers? or all of them at once just to make sure the signal is right in case the other filter is retarded?<P>my ...

Audi and Sonos have quietly partnered on in-car audio, the connected speaker company's first foray into automotive, with the technology first showing up in the new Q4 e-tron all-electric crossover.

Upgrade your car's factory stereo system with a set of 5x7 speakers. Manufacturers typically make stock speakers from inexpensive, low-grade materials as a way to cut costs and still provide ...