after a fair bit of dynamat not flashing tape
never heard of sextons before il loook em up on the net im running 4 x 15" vibe space plus plenty of components 14,400w bass peakHave done mine in dynamat extreme from the window line down, as with all my installs. With you on the tape stuff, just dont undestand why!
Your local Sextons will do it for £15 a roll unboxed and give a discount if you buy a few or can get it trade, my trick. A:
What audio are you planning? I am running old school ZX Phoenix of a high voltage source with Rainbow comps up front so far, will get the rear fill and subs in soon.