18Sound 18LW1400 vs JBL 2242H - Page 2 - diyAudio
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Old 18th December 2007, 09:22 PM   #11
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One horn loaded JBL 2242 is cleaner than three 2241's in the same horns. Horn loaded 2242's have become my reference. I have heard no better.
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Old 18th December 2007, 09:23 PM   #12
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Quote:
Originally posted by freddi
hi William - how would you build this type?
http://img.photobucket.com/albums/v3.../ADSCF2511.jpg

Sweet!!!!!!!!!
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Old 18th December 2007, 10:44 PM   #13
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Hi,

Somewhat OT but I have to.....

William,
Your described 2226 box seems to have similarities with this diy ebs design made a decade ago. It must have sounded terrific (as well as yours).

Freddi,
You seem to like Karlson boxes very much. I can imagine that they hit very hard.
I really have to try one some day, just for fun if nothing else.
By the way, one has to wonder who will be the first to make an accurate script for Karlson in AkAbak (or has someone succeeded already)? If so we will have simulation tool for Karlson as well.

Magnetar,
What horn in combination with the 2242 did you like?
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Old 18th December 2007, 10:48 PM   #14
freddi is offline freddi  United States
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dark ages - that would be high mass 40Hz B&C 15 in bass reflex
that K18 was Gauss 5181 cabinet
http://home.earthlink.net/~buddhaboy2/GK/
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Old 18th December 2007, 11:06 PM   #15
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G'day Anders

I built the first one at about the same time that project was published. My box was a bit bigger and tuned a little lower. The port was bigger, too. -3dB at 13Hz from memory. This was WAY before this LLT fad hit. I always saw the alignment as an extension of an EBS alignment. With a simple passive filter at the input to the sub power amp, almost any LF response curve could be dialed in. I used to use Calsod to simulate the response. When installing one of these subs at a customers house, I'd bring a few different in-line filters to try and swap them until I achieved my desired response. Maximum amplifier power was limited to 350W or so , not like these days of multi kilowatt amps driving subs in small boxes. Thermal compression was a non issue.

I've included a plot of the 2226 sub with eq applied. This is the flat version, great for big rooms. Usually the very bottom end was rolled off early at a very shallow slope to match the room gain curve.

Cheers

William Cowan
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File Type: gif danielle_sub.gif (11.3 KB, 775 views)
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Old 19th December 2007, 12:18 AM   #16
kesa32 is offline kesa32  Australia
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Quote:
Originally posted by cowanaudio
G'day 2100

They are both very clean drivers, and properly implemented will blend seamlessly with your top end. Many years back I had a room at the Melbourne HiFi Show and was voted having the best bass of the show, using a JBL 2226 based sub (300L@16Hz with passive eq).

Ken

Contact me when you're ready to go.

Cheers

William Cowan


Thanks william, l'll let him know....l'd imagine it'll be around mid next year when his house is completed

cheers ken
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Old 19th December 2007, 12:25 AM   #17
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Quote:
Originally posted by 4fun
Hi,



Magnetar,
What horn in combination with the 2242 did you like?

25 hz flare 1/8th space expo horns.

There they are in the back against the wall.....

Click the image to open in full size.
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Old 19th December 2007, 12:54 AM   #18
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Quote:
Originally posted by Magnetar



25 hz flare 1/8th space expo horns.

There they are in the back against the wall.....
Thanks Magnetar,
A system in my liking

If you want to share some details about your sub design I'm all ears.
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Old 19th December 2007, 12:50 PM   #19
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Originally posted by 4fun


Thanks Magnetar,
A system in my liking

If you want to share some details about your sub design I'm all ears.

Here's a 'pretty' one I built for a friend-

Click the image to open in full size.

It only required a 2241 due to the listening habit of the owner

Click the image to open in full size.
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Old 19th December 2007, 03:39 PM   #20
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Magnetar,
Looks like a very big Martin horn standing on its toes.
It seems like a rather short horn, but of course there is quite a bit of extension by close boundaries. How low do you reach with that setup in post #14?
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