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Old 17th March 2017, 12:03 PM   #11
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Check out Pispeakers.com when you get a chance. Plans are free just for requesting them. The 4's are a 2 way that would be interesting to you I would expect.

The cornerhorns (7 and 8) face that efficient woofer into the corner to boost efficiency 6 db. You need good corners in your listening room to use them though.

Designs from Wayne use a midhorn for 3 way setups and compression driver/horn combo that keep up with the 15 incher.


Have fun.

Grant.
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Old 17th March 2017, 02:56 PM   #12
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Thanks all for the tips. I'm glad I posted.

For those that are touting the FaitalPro stuff -

is this from personal experience, numbers, or.....?
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Old 17th March 2017, 04:00 PM   #13
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Old 17th March 2017, 04:13 PM   #14
zobsky is offline zobsky  India
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There are the various cornscala variants Cornscala? | Critesspeakers.com

Another option I've been vaguely thinking about (I have all the drivers lying around) is a 3 way non horn loaded design based upon either hte eminence kappa 15c or the crites CW1526 woofer, the audax PR17 midrange crossed over around 400 - 500 Hz and rolling off naturally crossed over to a fountek ribbon around 5KHz
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Old 18th March 2017, 02:18 AM   #15
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JBL uses 18" woofers in speakers with 10" and 12" midrange drivers. The large cone area of an 18" woofer provides high 97db efficiency bass with modest distortion generating displacement. The $210 Peavey 18" LoRider woofer models well in 8cuft ported, or sealed with room equalization. Spend more of your budget on the important midrange and compression driver tweeter+horn.

==== Sd ====
18" 1220 cm2
15" 855 cm2
12" 530 cm2
10" 345 cm2
8" 225 cm2
7" 180 cm2
6" 125 cm2
5" 85 cm2
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Old 18th March 2017, 08:39 AM   #16
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For similar money as the kappa LFA, is the deltalite 2515 a much better woofer? It's got the neo motor too.

For compression driver and waveguide, the Tymphany CD $40 and PRV wg $11 is amazing for the money. Very smooth and transparent.

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Old 19th March 2017, 12:48 AM   #17
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Quote:
Originally Posted by LineSource View Post

==== Sd ====
18" 1220 cm2
15" 855 cm2
12" 530 cm2

10" 345 cm2
8" 225 cm2
7" 180 cm2
6" 125 cm2
5" 85 cm2
you are suggesting a much bigger system than I care to handle.

But I see an argument buried in there for a 2 X 12" + horn 2 way <or> 2 1/2 way.


and again - thx to all for the posts
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Last edited by mpmarino; 19th March 2017 at 12:50 AM.
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Old 19th March 2017, 01:49 AM   #18
wg_ski is offline wg_ski  United States
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With the right 18, it wouldn't necessarily be any larger than a 15. Something that will do 40 hz f3 at 96 dB/w will be about 5 cubes, regardless of woofer size. Even if it's two 12's.

12 inch midrange probably overkill, unless you're crossing to the woofer under 150 hz. Which would be silly with a passive crossover. An 8 or 10 would do fine, and let the CD cross where it would be happier.
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Old 19th March 2017, 09:40 AM   #19
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if you want to go bigger and use 18" woofers I have some combinations that I think will work very good

#1:
Faital Pro 18FH500 or 18PWB1000Fe
Faital Pro 10PR410
Faital Pro HF10AK coupled to a STH-100 elliptical tractrix horn
HF10AK is the best 1" compression driver to be used as a tweeter I've ever heard under 500USD. Greg Roberts from Volti Audio uses this tweeter on his Vittora and Alura horn speakers with an 18Sound XT120 which is very similar to Faital Pro STH-100

#2:
Faital Pro 18FH500 or 18PWB1000Fe
Beyma 12P80ND-V2
Beyma TPL-200H
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Old 19th March 2017, 04:44 PM   #20
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Thanks again for the posts.

I went in looking at $125 USD ea 15" woofers and now we are at $400 USD ea 18" drivers.

It is unrealistic that i am going to spend that type of $$ in drivers. I certainly could, but I'm too frugal for that. I Truly appreciate the precision and quality... I really do. I love Ferrari, but I settle for less. There is a hope for retirement someday

I never even looked at 18" drivers. Always just assumed that they would NEED a huge enclosure. I see the point that they can tune in a similar enclosure to a 15, and with much less excursion than the 15 (and prob much less distortion). Likely need to be LP'd lower, and probably affecting midbass choice - not a big deal.

Also never thought I'd be modeling a Peavey driver!
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