adixon816 10+ year member
Member
I am getting ready to install my polk pa330 to my PHD coaxials. I can never remember what to use. I want to use hpf right? But is it better to set it from the amp or from the head unit. If I set it from the head unit do I turn the knob all the way up? There is no through option on the amp. My sub will be a sundown sa12 but I'm waiting for the box still. Thanks.