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Mini Tower Line Array using Pluvia 7's
Mini Tower Line Array using Pluvia 7's
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Old 12th April 2017, 08:16 PM   #21
chrisb is offline chrisb
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Join Date: Aug 2002
Location: victoria BC
If you either really fall in love with the Pluvias, or find this doesn't quite turn out as hoped and want to repurpose some of them , you might want to look at a design that I very much like, and consider underappreciated - the Planet10 micro-tower. I've built 3 pairs of the bipole version with top mounted driver, and particularly like them with the top driver tilted forward at 10dg. - per the options shown on page 4 of the plan set.

http://frugal-phile.com/boxlib/P10fr...aps-020615.pdf
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Old 12th April 2017, 08:22 PM   #22
zman01 is offline zman01  Bangladesh
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Mini Tower Line Array using Pluvia 7's
Chris,

Nice ones these. Has anyone built the "Chubby Towers" Yet?
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Old 12th April 2017, 10:57 PM   #23
chrisb is offline chrisb
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not that I'm aware - for my particular application, the slanted Castle variant suits my application quite well


wish he'd called the 4 driver version something else
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File Type: jpg Castle MTM-006.JPG (338.9 KB, 372 views)
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Old 13th April 2017, 08:05 AM   #24
fluid is offline fluid  Australia
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Quote:
Originally Posted by Dr1v3n View Post
I'm leaning towards Isobaric because the F3 is halved for the same volume from 1 driver. I guess I was always leaning Iso since I ordered the 4ohm drivers. Any input appreciated, but I realize it's always about me or so the wife says.
Isobaric always seems like such a waste of drivers to me unless you absolutely need to reduce the box volume to a very small amount. Push pull slot loading seems to work quite well for some drivers. There is a thread about them in the subwoofers forum.

The 8C commercial studio monitor from Dutch and Dutch is using two 8" subs on the rear of the cabinet to fire at the wall and they are claiming it works well right near the wall. Measurements look good, might be worth looking at, lots of DSP at work though.

post from one of the designers with some information relevant here http://www.diyaudio.com/forums/multi...ml#post5048852
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Old 13th April 2017, 08:17 AM   #25
zman01 is offline zman01  Bangladesh
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Mini Tower Line Array using Pluvia 7's
Quote:
Originally Posted by chrisb View Post

wish he'd called the 4 driver version something else
Good point Chris - maybe the name put off potential builders?

Well, Dave did offer an alternative design with 4 drivers:

microTower bipolar ML-TL for CHR-70 or EL70
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Old 13th April 2017, 05:24 PM   #26
chrisb is offline chrisb
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zia - actually forgot about that one - there must hundreds more drawings by Dave that have rarely seen the light of day, or been built - it'd be a Sisyphean task to undertake building them all.
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Old 14th April 2017, 01:31 AM   #27
Dr1v3n is offline Dr1v3n  United States
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I really like the Pluvia's midrange and top-end. It's not too 'shouty'. But after some 'break-in' period they do seem to lose some of the upper frequencies and favor the lower notes.
Right now I'm experimenting with MTM, i.e. 2 stacked FR Pluvia's with an 4-ohm AMT tweeter in the middle and everything is wired in parallel. The only crossover I have so far is a 2uF polyester cap in series with the AMT65-4.

All the lower frequencies are gone from the lobing effect, which is fine at this point. After I build 2 more boxes for 2 more Pluvia's, I'll test a MMTMM setup for L & R channels. The endgoal now seems to be a WMMTMMW setup with 8" SB Acoustics woofers crossed over in the sub 200Hz range. We'll see after the MMTMM experiment.

I am far gone from point source... However, I still have the 4x BK12m enclosures and 4x FE126En, and 4x Vifas to remind me how I got here.
Attached Images
File Type: jpg P1070079.jpg (296.9 KB, 334 views)
File Type: jpg P1070080.jpg (318.0 KB, 317 views)

Last edited by Dr1v3n; 14th April 2017 at 01:36 AM. Reason: Added pics
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Old 14th April 2017, 02:30 AM   #28
Dr1v3n is offline Dr1v3n  United States
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Did I mention I favor cymbal reproduction?... Listening to Celtic Frost: To Mega Therion is loaded with cymbals, french horns, and distorted guitar. Distorted guitar? Take the good with the bad I guess. Sounds freakin awesome.... Still trying to find an offensive album that hurts my ears in the mids.

Last edited by Dr1v3n; 14th April 2017 at 02:35 AM.
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Old 14th April 2017, 03:09 PM   #29
zman01 is offline zman01  Bangladesh
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Mini Tower Line Array using Pluvia 7's
Quote:
Originally Posted by Dr1v3n View Post
Still trying to find an offensive album that hurts my ears in the mids.
Do you have Slayer's "Seasons in the Abyss"? "War Ensemble" should be a good work out...
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Old 15th April 2017, 12:21 AM   #30
Dr1v3n is offline Dr1v3n  United States
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I do...

I'm about to enjoy these.... Today I put them in the garage, slightly different angles on the Pluvia's before I brought them back inside for a comparison test. Slightly improved lower FRn in both rooms. More work is needed. Comb filtering is more evident in the sub 1kHz region.
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File Type: jpg P1070082.jpg (437.6 KB, 274 views)
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