Switched to Alpine head unit now my highs amp is cutting out... HELP !!!!!

[smoothcriminal]

I've been upgrading my system piece by piece and I finally got the last piece of the puzzle and now my highs amp cuts out during a really loud part of a song. I guess I'll back up for a second and give you my system set up..........

Alpine CDA-9885 head unit

Autotek SS490.4 (highs amp)

Kenwood KFC-P708 6.5 + 1" components

Boston Acoustics S75 4 x 6 dash speakers

Alpine MRP-M850 (bass amp)

1 - 12" JL Audio w3v2 in sealed box

Visonik V8EQ 4 band parametric equalizer (7v)

Before, I had an older pioneer premier 660mp and it worked fine. The only thing I can figure is that the 4v outputs on the Alpine instead of the 2v outputs on the premier are making the problem. So what's my solution ? Lowering the gain on the Autotek ? Lowering the input level on the EQ ? Or just getting rid of the EQ all together ? With the extra power on the Alpine's outputs and it's unbelievable sound quality I may can live without it. So what do you guys think ?????? ttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt he EQ and not miss it,

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[Rich B 5,000+ posts]

It probably is a gain issue.

Sounds like the Autotek is clipping.

Any time you switch HU's the gains need to be reset on all your amps.

 

[smoothcriminal]

That it was......gain issue. I lowered the gains about a quarter down and it stopped clipping and sounds insanely better than it did with the premier. Which seems a bit odd.... I did expect a small step up in the sound quality, but not such an overall difference. I know the premier 660mp is an older deck, but it's still a good one. Have head units changed that drastically that two high end units are that far apart in quality only being 4 years apart in age ?