Hi Paul,

Stock Blaupunkt in my van were anything but quality after 20 years. I
highly advise that you troubleshoot the polarity of your connections
to the rear speakers. If one is out of phase, you may perceive the
sound to lack bass notes and sound hollow due to cancellation of
sounds present in both channels equally. There are test tone CD's on
the Internet you can download and test with but i'd choose a muisc
album you're very familiar with. Flip the polarity on one speaker and
see if that makes a difference.

Good luck! Cheers,
Peter DiFalco

On Saturday, January 2, 2010, Paul Gordon <paul_gordon@sympatico.ca> wrote:
> Thought I would pass this on as it may save someone else some time.
> Received a new pair of 4"x6" speakers for Christmas. Brand name, Fit ok in rear existing holes and were around the $100.00 mark.
> After the install, Big surprise. The original 25 year old Blaupunkt speakers sounded better than the new ones.
> Quality is ageless and new is not necessarily better.
>