Well, time delay units are very different to surround souns units. Try listening to music on a home pro-logic setup. The results are odd to say the least. Time alignment (delay) systems like Alpines PXA-H600 and H400 are designed to compensate for an off center listening position. That is, it adds delay to the closest speakers, so that the sound of a drum say arrives at your ears at the same time. This gives a far better soundstage, so you feel more immersed in the sound. The system in my car uses time alignment extensively on all the speakers, which are all in the front (apart from the sub). Auditioning one is obviously a good idea, but even if you buy one, you *will* like it. They tend to give the system a much more 'accurate' and lifelike sound.

for more info on time alignment and the PXA-600 in particular, check out
http://www.alpine.com.au/promo/tpsound.html

Some very useful material there.

Anymore questions, feel free to ask ;-)

Brian



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Brian Drought
1991 300CE
http://www.users.globalnet.co.uk/~drought/
ICQ: 2180069