This bespoke package includes the following equipment. Audison BMW 4 2-Way Components Speaker (Front Speaker + Tweeters). Audison BMW 8 Underseat Subwoofer (Pair). Audison Forza M5.11 Bit DSP Amplifier (11 CH DSP). Audison 10 Bass Reflex Enclosure 800W. Connection By Audison – Power/Earth Cable. Connection By Audison 4-Way Signal Cable. 5 Sheets 2mm Thick 390 X 250 Mm Sound Deadening. The DSP amplifier requires Tuning for the optimal Sound Quality. Please contact our team for a installation quote on the above package. F40 5 DOORS (2018-). F45 ACTIVE TOURER (2014-). F46 GRAN TOURER (2015-). F83 M4 CONVERTIBLE (2014-). F36 GRAN COUPE (2013-). F18 LWB SEDAN (2010- 2017). E60 SEDAN (2004- 2010). E61 TOURING (2004- 2010). F13 CONVERTIBLE (2011- 2017). F12 COUPE (2011- 2017). F06 GRAN COUPE (2011- 2017). G32 GRAN TURISMO (2017-). G12 LWB SEDAN (2015-). 1 Car Audio Security Ltd is a UK based company.