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In Reply to: RE: Constrained-layer Platforms posted by Ferrstein on April 20, 2010 at 16:30:54
Thanks for the pic, I'm using thick ceramic bathroom tiles between the X cabnet and the roller balls. Sometime in the near future I will be building some new frames for them. Still not sure which way to go, might try a 1+1 setup.
Follow Ups:
Well... when I had model 6s (3+3s if you will), I had them bi-amped. They were driven with interfaces at the time, one amp/interface drove the top three panels, and antoer amp/interface drove the bottom there panels. One day I played just the upper panels. The effect is more hall ambience, more room excitement. Later I had stacked Monitor 4s with servo amps. That was a killer setup, but I needed a very large room. Now my listening room doesn't have high enough ceilings for stacked Acoustats, and I really don't miss the upper panels. You really only get a few more DB with the added panels anyhow.
As for the panel angle - I tend to like slightly angled panels. maybe you could make a frame that allows you to experiment with that? Also, have you considered using the two 9" panels from your Xs as the bottom level, and placing the 8" panel above? A 2+1?
Ultimately I think the Xs, Monitor 3s, and Model 3s are the ultimate Acoustat for Servo amps. Monitor 4s if you have the room.
Would have loved to have heard stacked Monitor 4s with servo amps, :O)
It's funny you mention a 2+1 setup. Moray James had said that might be an option as well. Some food for thought there, that's for sure.
A good friend is a cabinet maker so he will be helping me with the new frames, we plan on using some nice wood as well, maybe Black Walnut.
A frame that allows me to experiment with angle is worth putting some thought into. Great idea!
Whatever I do, I will post pics on the Plannar forum when I'm finished.
Thanks again for added info.
Are you running servo amps?
The older Monitor 3 cabinets were nice, and they got the panels up a bit which seemed to clean up the bass response. I also found that raising the Xs off the ground about a foot and tilting them forward a bit helped them image a bit better.
IMO the servo amps don't work too well into narrow speakers. Maybe model 2 or 2+2 with the right room and setup... but I think the 1+1s won't be a good match for the servos. In my experience anything less than three panels wide sounds too, um, thin. :-)
Yep, I'm running the servo amps and I have the amps on my audio stand, not on the speakers. I have a few patio stones in the speaker to help for mass.
I did try them about a foot off the ground but didn't find much difference, but that was quite a while back and I have made alot of changes since then. Maybe I'll revisit that, I do have them tilted forward a bit and that helps.
That is what I wonder about, will I lose to much if I go to a 1+1.
My system does have incredible weight to it and losing a bit is alright, but not to much.
Maybe just redo a nice 3 panel frame. I am in near field so I'm not even sure what effect the taller panels would have, maybe not worth the try. Any ideas if I should have the panels flat or angled like the X ?
Thanks for the input, always nice to hear from others who have first hand experience.
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