Quick view Boss Audio Boss Audio 4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500W [BM40AMPBT] 4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500WThese Matte Black 8" BM40AMPBT Amplif MSRP: $299.99 Was: Now: $213.99 Add to Cart