I have now also come to the taste of kick basses and would now like to build some in my doorborads, or even new ones. so far installed is an axton 2-channel front system, which gets 2*50 Watt RMS from the Eybrid power amplifier, and a Pioneer subswoofer, which gets 300 Watt RMS, also from the Eybrid. everything best so far (for this class at least), only the “hearable” bass area is missing a bit… should not be too expensive the whole. Just give me a few tip If that’s important: Opel Corsa B, doors not yet insulated, but still comes (can the few kickbas range from the Axton front system perhaps come from the uninsulated doors? still ne info: the deep/midrangers are installed on such plastic adapters…). genericly I have either thought about a 2-channel (MXB 280??) and then I have already seen a kickbass with 2*4 ohms oscillating coil (so then every kickbass in row (or yet parallel? ?) with 2 ohms each). or still a 4 channel and on 2 channels bridges and then 4 ohm kick basses? many thanks to squiddy