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Old 7th September 2013, 02:49 PM   #11
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I already have 32 ltr floorstanders built out of 7/8" cherry with thick mdf baffles. They have served briefly as test cabinets to accommodate different ideas. Trying to emulate my long standing reference Apogee Centaurs. The Vifa woofers cae out of the Centaurs when I converted them to reflex cabinets similar to the Slant.
I think a matching cherry WG on the black baffle would look rather cool.
Peter
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Old 7th September 2013, 03:31 PM   #12
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Quote:
Originally Posted by pjblakey View Post
Spinmonster...
The elliptical ones you use look really good.
I was thinking of about 8" round WG purely for appearance sake, and possibly overlap the 8" woofer a la Troels' TQWT. How critical is the center to center distance for the 2 drivers?
Peter
An 8" with an 8" woofer is ok to 1600hz cross overs but there isnt a clean 8" woofer that matches the performance of the tweeter with a guide. I also see no low end benefit if it being used with a sub.

The elliptical is the perfect dispersion. At 10 feet there is no fall off standing on my couch or sitting on the floor so no performance gain is had by using a round one. Performance is supposed to be better limiting floor and ceiling reflections.

I call it the other way thinking the elliptical looks better. I ceretainly dont like when round ones are cut. His appears to use a 6" guide with a 8" midbass. They look good but not my taste

Last edited by SpinMonster; 7th September 2013 at 03:37 PM.
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Old 7th September 2013, 05:11 PM   #13
Juhazi is offline Juhazi  Finland
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wgs+tweeters analyzed here by "kimmosto" XT25 is top performer again. Also some very interesting speakers DIY archive of Kimmo Saunisto
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Old 7th September 2013, 11:54 PM   #14
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xt25 works very well with a waveguide
it can be crossed to a woofer at about 800hz
TwisterSpeakers: Big 2 way DIY loudspeakers with waveguide
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Old 9th September 2013, 12:39 PM   #15
Jay is offline Jay  Indonesia
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B ukU
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Old 10th September 2013, 11:55 AM   #16
Jay is offline Jay  Indonesia
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What the hell is that post above! My 2 years old must have posted it through my Ipod

BTW, I'm looking for possibility to run XT25 second order around 700Hz to 800Hz, and am looking for the cross section plan for the waveguide. Any one have such a drawing?

ADD: Twister WG seems to be too long for XT25?

Last edited by Jay; 10th September 2013 at 12:00 PM.
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Old 10th September 2013, 01:23 PM   #17
Juhazi is offline Juhazi  Finland
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The WG doesn't change the resonant frequency, but Peerless XT25 comes in many versions, be careful with them. There are tens of wgs matched for XT25, But it might be a little difficult to find cross-section to do cnc. User "jlaakso" has some for sale and he also might have a CAD-graph for them, PM him!

Tweeters | Tymphany
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Old 10th September 2013, 04:33 PM   #18
Jay is offline Jay  Indonesia
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Thanks Juhazi. I have no success with WG yet, but 3-way is not a good option either for 5" woofer.
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Old 10th September 2013, 07:49 PM   #19
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I use Dave Pellegrene's 8x5 wg for the XT25. It gives lift to about 1300hz. It has an easy mounting system. They are 35 each
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Old 10th September 2013, 09:45 PM   #20
Face is offline Face  United States
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His 8" waveguide seems to be good down to 1500hz.

https://picasaweb.google.com/1016322...1?noredirect=1

acoustic waveguides
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