In this episode of Car Audio Q&A we feature Alpine's new Typre R eight inch subwoofer. We previewed this woofer in the past and have been anticipating it's arrival for some time. Well we've finally gotten our hands on some. See the review. In this episode we will cover the following topics from our forum. Single chamber box for two subs Diagnose bad amps BMW E36 speaker locations Building a system on a budget Sub enclosure port location