rpb
Seasoned Veteran
Last Activity: Yesterday, 07:19 PM
Joined: 06-28-2006
Location: North Carolina
-
I built one using the 4 ohm version, and a Peerless tweeter. I stopped posting in the thread, but continued working on the x-over. I think it's a good... -
Surely, it has digital inputs??? My pre-pro has one optical, and one coax. I push a button to cycle between them, and the analog input. Use the HDMI for...Leave a comment:
-
I did a little reading about port resonances, and it does appear that the peaks I'm seeing are due to the port. I added a piece of egg-crate foam to the...
Leave a comment:
-
I found a 5" pvc port to try. The tuning went up to mid thirties, and that resonance at 550hz is much lower. Guess I'll give it a listen now. I'm...
Leave a comment:
-
Here's a close mic measurement on the woofer, and on the port. The f3 looks to be about 80hz. Looks like there's an issue centered at 550hz. If that's...
Leave a comment:
-
I'm curious about damping as well. I have some dense fiberglass that can stretch across the box. Pete S. mentioned placing it in the middle in some thread...Leave a comment:
-
The in room bass is nice with this tuning. My room will boom at 45hz if I'm not careful, that's why I have mostly used sealed boxes, and also why I was...Leave a comment:
-
Box tuning (mains)
Until recently, I've mostly used sealed speakers. About a week ago, I modeled a box for my Peerless 830874 6.5" mid-basses, and decided to assemble... -
I don't think either of you are 100% correct. This forum is really going down hill. Just talk everyone out of anything but someone else's design seems...Leave a comment:
-
Here's a woofer filter I came up with. I assumed a 4" offset.
...Leave a comment:
-
Like me, he is eyeballing the baffle step. In his sim, the 50uf and 8 ohm resistor is compensating for the impedance, and is the reason that a 2mH is...Leave a comment:
-
I've got one last x-over sim for you, in case down the road you want to experiment.
...Leave a comment:
-
Try this. First order filter. (ie, a coil), combined with a notch centered on the peak. my WAG would be to start with a 1mH coil for the first order filter....
Last edited by rpb; 09-05-2019, 06:26 PM.Leave a comment:
-
For speaker placement, try 48" to 52" out from the wall. I think you will find the sound changes compared to 34" or so....Leave a comment:
-
I have a rather random approach on this. If I'm working with a sim in PCD, I probably start with a WAG pair of resistors after the x-over to get the spl...Leave a comment:
-
Yes, it adjusts for the baffle response. Think of it as EQ. It effectively adds mid-bass, and mid-range for a more natural tonal balance....Leave a comment:
-
I don't think my neighbor has ever even noticed me playing an action movie. His house is about 40 feet from my HT room. I think one time he said he thought...Leave a comment:
-
This is pretty much the same, but with a couple different parts....
Leave a comment:
-
It's 11. Two fourth order filters is 8 parts. One padding resistor on the tweeter, one cap for the tank, and one resistor that I added in the woofer...Leave a comment:
-
OK.. here's my best effort at performance with reasonable part count. Higher xo point. Slightly more forward voicing. Breakup is buried. Should sound...
Leave a comment:
No activity results to display
Leave a comment: