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Old 14th February 2008, 23:16   #2
Simon
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Join Date: Nov 2006
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The trouble with upgrading the speakers is that the headunit that drives them needs to take advantage of the improved speakers. This usually involves being able to provide higher power outputs across a larger spread of fequencies. Unfortunately the OEM equipment is matched to the speakers provided and putting better quality speakers in my result in decreased performance.

What is needed is an amplifier that can drive the new speakers to their full potential (The Harmon Kardon upgrade offered at the factory was one such option available to new 75's/ZT's and uses improved speakers and an amplifier to provide a richer sound).

Unless you are willing to go the whole hog and fit both speakers and an amp or a newer headunit then you may find that you will be disapointed with the results. That said, quite a few members have been satisfied by replacing the OEM speakers and nothing else - I guess it depends on what speakers you go for and what your own perceptions of 'good quality sound' is.

To be honest, the MDF mounts will improve the OEM speaker setup without upsetting power-balanced speaker/headunit arrangement.

Hope that helps.
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