This sounds like the one set of speakers is getting a clipped signal from the HU (or the amp if you are running one to the 6x9's). Changing speakers is not going to change the outcome if the source material is distorted at that 80 level mark you note. Decent aftermarket brand name speakers are rarely the issue, especially if crossed at 80 Hz regardless if there crossed with a 12db or 18db slope. You’ll get shitty dirty (and potentially damaging) sound from poor source or amplification more often than too much clean power or the inability of the speaker to handle good clean power. I didn’t read what you are running to the 6x9’s.is it just the HU?When I set my volume to 70 my system sounds great. When I increase it to 80 my front 6x9s get sloppy/bottom out (for lack of a better term) at lower frequency notes.
Changing the slope from 12 to 18 fixes the problem, but I can tell that I like the 12 slope more.
Would changing from a kicker KS to a morel tempo ultra mkII allow me to run a 12 slope? Or is it not that simple?
The kicker is rated for a lower hz but I'm told the morel can move more quickly/accurately.
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