Yes ! I'm hearing overwhelmingly positive stuff about these. The one you posted is the 50wt x 4 channel, but they also make a 500wt mono version for the subwoofer (s)This amp?
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interesting idea. I’m guessing it’s internal eq is trying to make the response FLAT?
As for the auto EQ, it makes it "smooth" by added dips where you have peaks, and peaks where you have dips... In other words, it compensates for the peaks and valleys present in every sound system, in any vehicle.
At the same time, it will give a gentle curve with deeper bass being louder (since it's less audible, and mids and highs being lower..... Although I prefer a little bump at about 10-12K 😉
They will also put a dip between 2 and 4 Khz as this is the range that our ears are extra sensitive too (talking range).