Its most likely not the amp thats the problem, its the install and tune. Take it back and tell them whats wrong and have them warranty their work because it sounds like sh*t to you. If you do anything else on your own, they are not liable to fix it for you.Have this JL amp and my recently installed HK tweeters are really harsh and bright? had them installed by my car audio place but unsure with this amp whether it needs crossovers or the amps built in crossover function does it instead?
I agree, I have used a XD 400/4 and XD 200/2 on my Dynaudio Mids/Tweets and never any harsh sound...Sounds like an install / tune issue.Its most likely not the amp thats the problem, its the install and tune. Take it back and tell them whats wrong and have them warranty their work because it sounds like sh*t to you. If you do anything else on your own, they are not liable to fix it for you.