Hi all...odd one this...the rear speakers in my 1997 Cabriolet sounded very dull and muted with Rover head unit still in car...I changed the unit over with my known to be working JVC head unit and the results were the same...next job was to re use my speaker box from my previous car (2x8" and 2x tweeters) which had worked perfectly well with the JVC unit...guess what? Exactly the same problem, all rear output sounds dull and muted whereas front speakers are fine. Anyone else had this problem or know a possible cause? Many thanks.

Ive never come across with that one before, All i can think off is the speaker wire my be faulty,

Check the poloarity on the rear speakers. Maybe you have them the wrong way round, so as one speaker pushes the other pulls.

find the speaker wires for the back on the block connector cut them and put new wires to the speakers try that had same trouble with my bubble

I have tried the polarity already and swapped wires around...if it was more accessible I would try running the box from the front speaker wiring but would prefer it to work as it is...i'll try replacing the rear speaker wires and see what happens...thanks guys.

hi kip i found that there is not that much base from the rears no matter what speekers ar fitted and when the roof is down not much at all to solve the problem i fitted a sub woofer to the boot not to big or then i will look like a boy racer *laughs* but it certanly helped in my current car i have jbl speekers with a vibe sub rear speekers still need changeing
i found the vibe cbr1o gave he best ballance of size and sound runing at low gains
hope this helps