This amp is powerful and makes my 10" alpine subs sound very good. The bad news is the amp is supposed to have an automatic turn on feature that turns the amp on without having to use a remote turn on wire. This was one of the reasons I bought this particular amp because I didn't want to have to pull my head unit back out to hook up the remote turn on wire. While the amp works good the automatic turn on feature did not work. I had to pull head unit to run wire anyway. I can not give it 5 stars for this reason.
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