rpb
Seasoned Veteran
Last Activity: Yesterday, 08:50 PM
Joined: 06-28-2006
Location: North Carolina
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Maybe a band-pass design. They can go deeper than ported sometimes. A 48" port is not much of an issue if it's in a closet. F3 under 20hz ??? -
I can't tell how deep it is from the picture, but if it's less than about 24" deep, I would agree. Looks like it might be 4 cu-ft, if it's 12"...Leave a comment:
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Here's a filter, and a frd. Don't click on the sim if you want to try it yourself first. trouble.frd This is the PE file, but had to be worked on to make...
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The mid frd file is wrong!
The mid frd is wrong!
The 2 woofers in the picture are part of the 3-way, and your subs are elsewhere...Leave a comment:
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I'm sure the frd is wrong. Doesn't look like he saw the comment. Pretty sure that he loaded the DC300-8 frd for the mid....Leave a comment:
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You can do this. You're well on your way. You just need a few experienced guys to assist you.
How close to the walls are the speakers? Is the woofer...Leave a comment:
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Here's one more, with more BSC, and a 2.6k x-over. I smoothed up your frd a little bit more.
850122rev.frd
...Leave a comment:
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Here's a woofer filter for ya. Might need more BSC. I was going strictly by the measurements. Looks like Dave likes more BSC than this in his room. I...
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Gave up already???? I just built 10" 2-ways. Best speakers I've owned.
Here's the sim for the 8" 2-way.
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Here's what I came up with for the woofer. Took hardly any time at all. Could be better probably. The amt download was blank. I'll try again tomorrow....
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I'd like to play with this using PCD. Can I borrow your woofer files?...Leave a comment:
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Try adding a couple ohms to the notch, and making the big coil smaller. See if you can push the x-over up to 2.5k, or 3k.
The filter was...Leave a comment:
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If you have the sim still, can you try the filter I posted in post #9, and tweak it for a 2.5k x-over point? Maybe 2.5mH instead of 3mH.
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Can you measure?
My baffle is 9" x 17.3". No round-overs. Woofer center-line is about 5.5" from bottom edge. It looks a little...Leave a comment:
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I know it's different, but the responses are pretty close. The impedance is a little different up high. I suspect that the filter would be close, and...Leave a comment:
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How close to the walls?
The woofer response looks very similar to some Peerless HDS drivers I've used. They can cross in the 2k to 2.5k range,...Leave a comment:
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Distance from the edges is as important as anything....Leave a comment:
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Are they going to be used on stands out away from the wall a few feet or so? Sealed? Ported? Used with a sub? How loud, and what type of music?Leave a comment:
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Here's a couple sims I did today. Maybe I'm wrong, but I don't think the eight can touch this.
It might be able to match this...Leave a comment:
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If it will play loud enough for you, how about a tmw using RS270P-8, RS150P-8, and most any tweeter you want. The RS270P sealed needs a pretty small box...Leave a comment:
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