Hello , ride a 323i e36 touring , currently with a 2 way component system of Focal , powered by the Crunch GTX4800 and a 1 Farad Powercap . Since the bass is clearly too little I wanted to install a sub and have now stuck to 2 products , I was explicitly recommended the “Eton Force f10-600g” in closed housing with 25cm diameter . It should have a cleaner bass and be better suited for example Metalcore etc. Others tell me again de r 30cm “Eton Force f12-600g” is better kept in my touring .. Could you help me ? Am a little undecided (