Hello, so I have already installed the following: 2 x bridge K2.02 1 x Optima Red Top as an add-onbat. Audio System HX 165 SQ as a front system Well the problem I find somehow not the right woofer for me. Belonged to the following Woofer : Audio System CX 12 BR : I don’t like it any more. I used to not feel bad but unfortunately not right about it. Audio System Xion 12 Plus BR: Was really surprised compared to the old Xion are worlds in my opinion. ig. quite well liked, but for trance absolutely not suitable. Rather a Hop Hop Woofer. MTX 7512 SLH: I liked it very much for a while, but I had some little steam. I find the pressure can keep up with the Xion net. Hm now the question is what would fit well with the bridge? Would like to drive on 2 ohms. I wouldn’t want to sacrifice a lot of space either. Let’s say a maximum of 85 l around. Probably 2 x 12″. The price is irrelevant quality has its price. MF G Alex