15" Mid Range

4pyros · 19th February 2011, 12:04 PM

Is thare a good way to use two 15" speakers to better cover the Mid Range?
Like using one for the lower end and using the other for the higher end?
What would be the best cabinet for these? One small, one larger?
One sealed and one vented?
Any thoughts?
Andy

4pyros · 19th February 2011, 01:15 PM

Seems its like a Quasi three setup like in the Peavey; SP-4 or JBL; JRX125 but I can not find much info on how these are setup. Is it just a crossover? Do thay share the same volume in the box?
Andy

4pyros · 20th February 2011, 01:41 AM

No one with experience using 15" mids?

Brett · 20th February 2011, 02:54 AM

Sure for home use you can use a dedicated 15" like a AE TD15M or JBL2220/2227 and a dedicated LF driver such as a 2235 or a Tempest, but because of the differing sensitivities, active is the most practical way to implement it. I'd keep the mid sealed but the LF can be whatever works best. I've often recommended a similar arrangement with old Tannoys too.

The JBL and Peavey PA units you mention are most likely a 2.5 way with the lower driver being rolled off above maybe 200hz. JBL usually provide a lot of detail in their datasheets and the service manuals (often including the complete schematic).

Pano · 20th February 2011, 03:50 AM

There are better choices for mids. Like 10s. Especially for your use. Why 15?

Brett · 20th February 2011, 07:37 AM

Quote:

Originally Posted by Pano

There are better choices for mids. Like 10s. Especially for your use. Why 15?

I agree Pano, and that's exactly what I used for the mids in my PA and my home speakers. But I'm bored with suggesting something that works based upon lots of experience as people usually have their own idea of what they want to use.

4pyros · 20th February 2011, 03:53 PM

Quote:

There are better choices for mids. Like 10s. Especially for your use. Why 15?

Only because the money man already bought them before we knew what to do to make a good out doors PA. We have 16 kappa pro's we would like to set up the best way posible as mid-ranges. We know thay may not be the best for mids but we need to do our best.

I am open to thoughts at this point, ware as all I know so far would be to differant size ported boxs.

Andy

chris661 · 20th February 2011, 04:41 PM

What's being used at either side of the frequency range with them?

I assume you'll be crossing them over to a subwoofer, in which case, "midbass" would be more appropriate, as a dedicated midrange might cover 300Hz-5kHz. Not the range for a 15" driver to be considered an effective solution.

I'm also pretty sure there's some tapped horn designs for those, so you could get some bass with a few of them, too.

4pyros · 21st February 2011, 12:40 AM

Quote:

I assume you'll be crossing them over to a subwoofer

yes I will be making Jims SS15 with 3015LF drivers, thay are good up to about 250Hz.

Quote:

What's being used at either side of the frequency range with them?

I will be using 2" and 1" compreshoin drivers on the high side.
I would like to cover 200 to 2Khz with two 15" Kappa pro's.
Eminence says thare are good up to 4kHz but not what kind of enclosure.
Thanks Andy

Brett · 21st February 2011, 12:47 AM

If you have 2" and 1" CDs to run above them, I wouldn't be using the Kappa's out to 2k, more like 800-1k with the 2" on an appropriate flare.

19th February 2011, 12:04 PM	#1
4pyros diyAudio Member Join Date: Nov 2010	15" Mid Range Is thare a good way to use two 15" speakers to better cover the Mid Range? Like using one for the lower end and using the other for the higher end? What would be the best cabinet for these? One small, one larger? One sealed and one vented? Any thoughts? Andy

20th February 2011, 04:41 PM	#8
chris661 diyAudio Member Join Date: Feb 2008 Location: Lancashire Blog Entries: 7	What's being used at either side of the frequency range with them? I assume you'll be crossing them over to a subwoofer, in which case, "midbass" would be more appropriate, as a dedicated midrange might cover 300Hz-5kHz. Not the range for a 15" driver to be considered an effective solution. I'm also pretty sure there's some tapped horn designs for those, so you could get some bass with a few of them, too. __________________ "Throwing parts at a failure is like throwing sponges at a rainstorm." - Enzo My setup: http://www.diyaudio.com/forums/multi...tang-band.html

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19th February 2011, 01:15 PM	#2
4pyros diyAudio Member Join Date: Nov 2010	Seems its like a Quasi three setup like in the Peavey; SP-4 or JBL; JRX125 but I can not find much info on how these are setup. Is it just a crossover? Do thay share the same volume in the box? Andy

20th February 2011, 01:41 AM	#3
4pyros diyAudio Member Join Date: Nov 2010	No one with experience using 15" mids?

20th February 2011, 02:54 AM	#4
Brett diyAudio Member Join Date: Jan 2002	Sure for home use you can use a dedicated 15" like a AE TD15M or JBL2220/2227 and a dedicated LF driver such as a 2235 or a Tempest, but because of the differing sensitivities, active is the most practical way to implement it. I'd keep the mid sealed but the LF can be whatever works best. I've often recommended a similar arrangement with old Tannoys too. The JBL and Peavey PA units you mention are most likely a 2.5 way with the lower driver being rolled off above maybe 200hz. JBL usually provide a lot of detail in their datasheets and the service manuals (often including the complete schematic).

20th February 2011, 03:50 AM	#5
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	There are better choices for mids. Like 10s. Especially for your use. Why 15?

21st February 2011, 12:47 AM	#10
Brett diyAudio Member Join Date: Jan 2002	If you have 2" and 1" CDs to run above them, I wouldn't be using the Kappa's out to 2k, more like 800-1k with the 2" on an appropriate flare.

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