18TBX100 vs 2lab12 - Page 19 - diyAudio
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Old 16th February 2012, 05:37 PM   #181
Xoc1 is offline Xoc1  United Kingdom
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Quote:
Originally Posted by kornnylike View Post
I have everything ready just waiting for Xoc1 to arrange the panels on the 6 fold plan , then I will start building.
Kornylike.
I suggest you draw out the design on one of the side panels, and decide for yourself how to join the panels -People have differing joinery skills and equipment, so there is never a best way of setting out the panels. The right way is whatever is right for you. Some Like simple butts, some want mitres, some want rebates. These will all effect the panel sizes.
BTW I have landed a new contract this week, that's going to keep me busy for the next few months. 'Got to go make hay when the sun shines.'
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Old 16th February 2012, 06:37 PM   #182
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Quote:
Originally Posted by Xoc1 View Post
Kornylike.
I suggest you draw out the design on one of the side panels, and decide for yourself how to join the panels -People have differing joinery skills and equipment, so there is never a best way of setting out the panels. The right way is whatever is right for you. Some Like simple butts, some want mitres, some want rebates. These will all effect the panel sizes.
BTW I have landed a new contract this week, that's going to keep me busy for the next few months. 'Got to go make hay when the sun shines.'
Good to go
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Old 16th February 2012, 08:25 PM   #183
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Originally Posted by weltersys View Post
The dbx RTA-M mic should be reasonably accurate in the range of the cabinet.

I have an RTA-420, IIRC has the same element, it measures a few dB less at 30 Hz than it should, compared to my B&K 4004 mics.

An SPL meter with better LF response will cost big $$.
Like 2-3dB or 3-4dB? And thanks for the info!
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Old 13th January 2013, 10:40 PM   #184
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Originally Posted by epa View Post
the post 5 box from the 30 hz topic is a 400 ltr cab.the tbx doesn't work that wel in it.
the post 466 is a 575ltr cab .it works in it but it could be better.
what about this design,its a bit wider but les deep also 575 ltr(stil needs some work thoug)
Click the image to open in full size.
just noticed ,the le of the tbx is 1.6 mh
Epa

Look I just build for a friend.


2013-01-13 17.24.08.jpg

2013-01-13 17.48.09.jpg

2013-01-13 17.48.13.jpg

d th.jpg

dth.jpg
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Old 14th January 2013, 10:27 PM   #185
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Originally Posted by weltersys
The dbx RTA-M mic should be reasonably accurate in the range of the cabinet.

I have an RTA-420, IIRC has the same element, it measures a few dB less at 30 Hz than it should, compared to my B&K 4004 mics.


An SPL meter with better LF response will cost big $$.
Quote:
Originally Posted by CRESCENDO View Post
Like 2-3dB or 3-4dB? And thanks for the info!
Looks like the RTA 420 is about 1.8 dB less at 25 Hz than the B&K 4004.

Nice work on the cabinet, Kornylike!
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Old 15th January 2013, 04:34 AM   #186
epa is offline epa  Netherlands
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Originally Posted by kornnylike View Post
looks like a solid bild.
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Old 9th May 2013, 10:43 AM   #187
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Hi kornnylike,

Did those boxes ever get finished? I never got around to building these. I finished my 2nd set of TH-18s instead. I'd still like a bit lower tuning (for a few tracks ), but I'm a bit hesitant to build these with my 18SW100 drivers as the fs is a little high (35Hz).

epa, have you fiddled with this cab any, to implement cone correction or to raise the efficiency (the 1st dip in the efficiency window)?

Cheers, all!
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Old 9th May 2013, 11:10 AM   #188
epa is offline epa  Netherlands
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hi justin
this mod was made for the 18sound lw1400.
the sw100 works wel to but its more "flat to 38" design.
the eff dip is @5% at 83 hz
eff is~5% from 39hz up
im currently working on a small cab 69wx69hx87d cm ,so you could fit them 3w 3h in a truck.
preview
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Old 9th May 2013, 01:51 PM   #189
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I was directing my post to the TBX box. Sorry for the confusion, Eric!
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Old 9th May 2013, 02:33 PM   #190
epa is offline epa  Netherlands
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ah ic
i don't beleave that one is ever bild.
i have to see if i got the drawing.
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