RobGy

Hi folks, I know 100% of SFA about car audio, so please be gentle and phrase your answers as if you were talking to an idiot. I have a mk3 Octavia Elegance with (I think) the Amundsen head unit. The stereo is fine 90% of the time, but anything with sub bass, as soon as the bass kicks in everything goes quiet - if I understand what I've read right, this is bass rolloff, correct? Anyhow, I am thinking about adding a compact, budget subwoofer to give me a bit more kick when listening to bassy music like dub and suchlike. As I very much value the boot space and often use the car in full on "minivan mode" with the seats down, I am looking at under seat subwoofers, like the Pioneer TS-WX130EA or the Kenwood KSC-SW11. Will I also need a line converter like the AudioControl LC2i to prevent bass rolloff when using one of these powered subs, or will the sub take care of that for me? If I do need one, where the hell can I fit it that isn't going to take up valuable space? Secondly, how hard are they (both subs and converters) to fit? Is it a "pull your dashboard to bits" job? If so, I might just plump for the fitting cost! Thanks