What would you do with 8 Dayton RS225-4's - diyAudio
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Old 13th August 2016, 02:16 AM   #1
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Default What would you do with 8 Dayton RS225-4's

I'm thinking a tall WWMTMWW around 125 L tuned to 30hz......just not sure on the MTM part.......

Maybe OEM RAAL and two Scanspeak 10F's?
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Old 13th August 2016, 02:21 AM   #2
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wait few days, i'll test the RS225 next...

World's best midrange Blind Testing - Need your help.


might surprisingly do well 2-way, who knows
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Old 13th August 2016, 03:11 AM   #3
freddi is offline freddi  United States
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maybe like this image nabbed some time ago from PartsExpress using an 8 inch Dayton waveguide

Click the image to open in full size.
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Old 13th August 2016, 03:36 PM   #4
Lojzek is offline Lojzek  Croatia
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Quote:
Originally Posted by mayhem13 View Post
I'm thinking a tall WWMTMWW around 125 L tuned to 30hz......just not sure on the MTM part.......
Depends what you'd like to accomplish with this project. Sound wise it'd
be better to use one midrange dome(cone) and one tweeter dome for better
vertical off-axis response. 4 of RS 225-4 in one cabinet are good for
89 dB/2,83V/1m, baffle step loss calculated in.
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Old 13th August 2016, 04:15 PM   #5
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Tested.

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Old 14th August 2016, 02:53 AM   #6
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Quote:
Originally Posted by Lojzek View Post
Depends what you'd like to accomplish with this project. Sound wise it'd
be better to use one midrange dome(cone) and one tweeter dome for better
vertical off-axis response. 4 of RS 225-4 in one cabinet are good for
89 dB/2,83V/1m, baffle step loss calculated in.
Reduced vertical dispersion is preferred....less ceiling/floor interactions. The MTM/ Ribbon config assures this. I'll be sitting on axis for critical listening with a system of this magnitude for sure.

Unibox sims and an 11" baffle give me 92 db 1w1m ?
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Old 14th August 2016, 04:51 AM   #7
JShadzi is offline JShadzi  United States
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If you want a lot of really nice bass, use all 8, I've build speakers with 2 in each tower and the bass was really good, made me want to add 2 more per side to the mix. I love the bass quality and amount this woofer produces.
Javad
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Old 14th August 2016, 09:26 AM   #8
Lojzek is offline Lojzek  Croatia
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Quote:
Originally Posted by mayhem13 View Post

Unibox sims and an 11" baffle give me 92 db 1w1m ?
My mistake, I should have said about 91-92 dB at 2,83V/1m
for 4 units series/parallel with baffles step loss, not 89 dB.

Your data seems ok, 2 pi.
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Old 14th August 2016, 11:49 PM   #9
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Quote:
Originally Posted by JShadzi View Post
If you want a lot of really nice bass, use all 8, I've build speakers with 2 in each tower and the bass was really good, made me want to add 2 more per side to the mix. I love the bass quality and amount this woofer produces.
Javad
The thought would be four per side for a total of eight. The extreme bottom would be handled by a pair of sealed 18's with LT function via DSP
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Old 15th August 2016, 06:47 PM   #10
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I would build a pair of the Endeavour Audio flagship speakers.
E-5 Speaker System
They use a HiVi 6" and Scan Speak Be tweeter and sound fantastic!

Last edited by Audio Elite; 15th August 2016 at 07:10 PM.
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