Hey, with this new HCCA-D2400 there are some settings on this that are pretty new to me, notably the subsonic filter, and i have some questions about it, I talked to hccafan about some of the stuff but i'm still a little confused and don't want to bug him anymore. Now for reference i have a 15" sx in 4 ft^3 and tuned to 33hz.
First off, when i set the lpf, on this amp, it goes down to 30hz, and my last amp it went down to 45 (which is where i had it set), but then he had said that i should set it at about 70-80hz (which surprised me), does this sound about right? And when i set that, do i use that 70-80hz for the test tone when i set the gains on the amp?
Second, when i set the subsonic filter, people have said to set it at port tuning or slightly lower, how much lower exactly can i go with it?
Third, there's an intelli Q setting where i can boost between the subsonic frequency and the lpf frequency from 0-10db, should i just leave this alone, or is this a good idea to bring this up somewhat?
Lastly, when setting these, how do i know when i'm at the right frequency? Is there some way i can test this with a dmm or ammeter, because it's pretty **** hard to eyeball the frequency since it just shows the minimum and maximum.
