Hi all:
I have two systems setup almost the same way in an Acura Integra and a
Toyota 4runner. Both have Boston Pros for the front, and cheap Bostons for
rear fill. Each has a Boston Pro 12" sub in a sealed enclosure and both are
driven by an Xtant 603X each. There are two main differences between the
systems. One has an older Alpine 7840 (Integra) HU and the other has a newer
Alpine 9815 (4runner) HU. Taking into consideration the size difference
between the cars it seems that the older Alpine performs a lot better than
the newer one quality wise. The highs are crisper and the bass has more
definition. The 9815 sounds a bit dull. I have even tried to change the
settings with that file you configure and download from the Alpine site. Has
anyone experienced this? Why could be the reason for the difference?

I am asking this because I am getting ready to buy a new car and I am really
in love with the 7998. But I rather have good sound quality instead of good
looks. I am going to keep everything from my old system except for the HU,
which I was thinking to exchange the 7840 for the newer 7998. The car that I
am selling is the Acura and I am going to put the system on a G35. I wanted
to get some thoughts from people that have experience with older and newer
Apine units. Please advise.


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