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In Reply to: RE: My IIIas cross over from bass panel to mid panel @ 340hz (-6dB mid-point)! :-)) ... posted by andyr on January 13, 2009 at 00:09:12
The first crossover point in a 3-way will be lower than the only crossover point in a 2-way. It's actually the 2nd point that can be the more problematic in a 3-way, isn't it? The greater issue here, as I'm glad to see someone else also mention, is placing a single sub at a room boundary and having it operate all the way up to 300Hz. There's going to be an audible disconnect between the sub and the satellites. I could be wrong (as I mentioned before - that would be nothing new), but I don't think that would work. 60Hz is one thing, but 100Hz is getting you into trouble, and 300Hz is just asking for it IMO.It's an apples to oranges thing I know, but try disconnecting one of your bass panels. I'd be curious to know how much your head keeps getting yanked in the direction of the operating bass panel.
"Jazz is not dead - it just smells funny" FZ
Edits: 01/13/09Follow Ups:
However, I'm not sure I agree with your statement that " It's actually the 2nd point that can be the more problematic in a 3-way ".
If you want to be "theoretical" about it, I suggest having a crossover anywhere in the human voice range - say, 150hz to 2,500hz - is not a good thing. So having the XO from woofer to mid on the Linkwitz "Orion" & the John Kreskovsky "NaO" @ 120hz is better than having it @ 340hz on my IIIas.
Likewise, the XO between mid & ribbon on my IIIas is set @ 2,600hz ... which I reckon is better than the 3.6, where it is down around 1,800hz. (And the NaO is 2,500hz compared to the Orion's 1,500hz.)
Regards,
Andy
I'm not sure I agree with anything I say ;- )
I initially read that there was a single woofer. Now I read that there are two. That changes things, but I think I'd want to keep them fairly close (each 'sub'/sat pair).
"Jazz is not dead - it just smells funny" FZ
Why? They don't really look that close in the demo pics.
They also had two woofer enclosures for a total of 4 woofers so each little panel had two woofers supporting it.
Woof, Woof
"If people don't want to come, nothing will stop them" - Sol Hurok
300Hz is above a middle C. If I put on a blindfold and then spin around a few times (so that I'm disoriented with regard to where things are) and my daughter hits a middle C on the piano, I can point right at it. Drop an octave to a C3 and I still can. My point is that these are highly localizable frequencies, so they shouldn't be coming from different points in the room. At least, that's what I think - I'm not sure I'd pay much attention to me however ;- )
"Jazz is not dead - it just smells funny" FZ
Edits: 01/13/09
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