Originally Posted by Bassment
well it's easier to use the input filters if you want to EQ both output subs the same. If you want to EQ the subs separately then you use the output filters. Or use them both if you need lots of filters. If you just have 1 sub then it doesn't matter which one you use. I use input filters for a low shelf filter, and the output filters for EQ. Then I can easily turn my bass boost on and off just by turning the input filter on or off, and it doesn't affect my EQ.
Ah, yes. That's what I was after. I was really just wondering if there is some untapped potential (more filters). It seems there is.
Originally Posted by AustinJerry
No, Dirac does not select the full range for the sub channel. As shown below, Dirac is creating filters only for the 15-500Hz range (in my case). Of course, you can drag the right limit lower if you want.
Yep, I forgot about it capping at 500Hz. I found that (since I'm using an 80Hz crossover) I could move that down to around 200Hz, and it did a noticeably (visually, not necessarily audible) better job at smoothing below that point. It's like it has a limited number of filters to apply to each channel, and by telling it to focus below 200Hz, it suddenly had enough filters to tame some waviness that it didn't bother with when it was trying to get me smooth up to 500 Hz.
Just so we are all on the same page here. I'm dealing with two identical subs, equidistant from the MLP. I'm still in the "playing" phase with my 2x4balanced, and 88a. I'm planning to go back to no filters at all, getting a new clean REW measurement, and using both input and output filters on the 2x4 to see how flat I can get my two subs. Then I'd like to go back to no filters, and let the 88a do the best it can. If I compare the two, and I'm still not satisfied, I'd like to let the 88a do what it can do on-top of what the 2x4 is doing, and see where I end up. It's pretty good already, but while I'm still in the playing stage, I might as well strive for the best it can be.