8*T30 30" dual 12" european

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shawn_g
Posts: 420
Joined: Sat Jan 14, 2012 9:00 pm
Location: Logan, OH

Re: 8*T30 30" dual 12" european

#46 Post by shawn_g »

Looks great. I like the design on the mouth braces!

Marflinger
Posts: 107
Joined: Thu Dec 04, 2025 1:20 pm
Location: Germany-Blackforest

Re: 8*T30 30" dual 12" european

#47 Post by Marflinger »

Sadly timing is not on my side, but the exploded workload should slowly ease from now on.

I got the cab finished yesterday, had to think about the connection at first, i think i'll go with that for all of the cabs.
1000043522.jpg
Space sufficient, less cables inside, only one point with importance of airtight...and every connector is flush :)
1000043525.jpg
1000043524.jpg
All sealed
1000043528.jpg
Before the mouthbrace
1000043867.jpg
1000043868.jpg
And done, glue is setting right now.
As the winter returned again, this will take more time as i would like it to; but nothing i can change.
Will do the flanges as soon as i can, and then place some woofers in there to check if the sealing has worked. But i am pretty sure it should be airtight everywhere.
DR250 (2 done, 2 to go)
8 T30 (in building phase)
driverack PA+
Wharfedale DP4065F
Prokustik FP14000

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shawn_g
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Joined: Sat Jan 14, 2012 9:00 pm
Location: Logan, OH

Re: 8*T30 30" dual 12" european

#48 Post by shawn_g »

Looks great! I'll be curious to hear your impression when you get a chance to test it.

Marflinger
Posts: 107
Joined: Thu Dec 04, 2025 1:20 pm
Location: Germany-Blackforest

Re: 8*T30 30" dual 12" european

#49 Post by Marflinger »

Well yeah, nothing on the time side is on my side...
I stole some of the unavailable time, got the flanges and filled the holes...but not yet further -.-
1000044019.jpg
Flanges done, will def do them in one piece the next cabs. For aligning during build, to avoid the build inside chamber now...would be a win even with more wasted wood.
1000044018.jpg
Corrected oopsie, glued replacement and trimmed flush
DR250 (2 done, 2 to go)
8 T30 (in building phase)
driverack PA+
Wharfedale DP4065F
Prokustik FP14000

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Tom Smit
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Joined: Sat Jan 05, 2008 1:24 pm
Location: Sarnia, Ont. Canada

Re: 8*T30 30" dual 12" european

#50 Post by Tom Smit »

"Corrected oopsie, glued replacement and trimmed flush"
Good recovery.
TomS

Marflinger
Posts: 107
Joined: Thu Dec 04, 2025 1:20 pm
Location: Germany-Blackforest

Re: 8*T30 30" dual 12" european

#51 Post by Marflinger »

Tom Smit wrote: Tue Mar 31, 2026 9:31 pm "Corrected oopsie, glued replacement and trimmed flush"
Good recovery.
Had the panel underneath when cutting some bracings with the circular saw...thought the cutline was clear, turned out it was not and the corner got lost^^

But as it was about fixing shorted panels elsewhere, i thought showing the recovery maybe helps someone.
Really not a problem to fix.
DR250 (2 done, 2 to go)
8 T30 (in building phase)
driverack PA+
Wharfedale DP4065F
Prokustik FP14000

Marflinger
Posts: 107
Joined: Thu Dec 04, 2025 1:20 pm
Location: Germany-Blackforest

Re: 8*T30 30" dual 12" european

#52 Post by Marflinger »

Did start burning the drivers in, forgot about that completely.

Shortlinked the amp to my home circuit, it took a few runs until the amp did not trigger the breaker bc of the empty transistors that want to load up immediatly. But now the first 4 are running...will do the next 4 in 12 hours and maybe i get the time to put the first two in the cab to hear it finally :))

I thought about the wheelboard thing again.
I came up with the following thought: As i want to do 8 of the T30 and 4 of the DRs, i could stack tweo T30 and one DR to one carry-on-package, and i would end up with 4 equal bundles i can strap together.

The height of that adds up to around 210cm without the wheelboard, which will be problematic to get out of the door sadly. But this will be the storage-solution, to move them I'd have to take the tops of until the package is out of the door.
Now i just need to think about how to fix that stack to the wheelboard. I thought about having routed in handles in the T30 as well as in the board, board slightly overlapping, and then strapping it around everything. Between the cabs i'd place some of the protection mats, as i want to have them anyway when stacking them to play.
I just do not trust the recommended hatching with butterflys enough, the cab feels sort of too big for the little hatches (and i do not want the hatches on the cab when stacked).

anything i forgot? any problem with strapping?

I would give the wheelboard a frame on three sides, to have the position fixed to the lower cab so there is no movement when rolling around.
As i have to do a stacking solution for the DRs on top of the V-Plate later, i thought re-using the wheelboard for that. The mentioned frame could have additional bars, that would carry the lower DR, and the wheels could get grooves on top of the V-plate (similar to what someone here showed lately, just bigger wheels and covering the angled lower DR directly. viewtopic.php?p=299480#p299480 )
DR250 (2 done, 2 to go)
8 T30 (in building phase)
driverack PA+
Wharfedale DP4065F
Prokustik FP14000

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Seth
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Re: 8*T30 30" dual 12" european

#53 Post by Seth »

So, you're going to do a separate "movers dolly" type of transport solution, if I'm understanding correctly. I like that idea. Sounds like a clean solution, especially considering the cost of putting four casters on each cab!

I wonder if it could be effective to use rubber feet as locators. So when the cabs are stacked on the dolly, they're horizontally secured and not trying to slide off each other... additional stability over just straps alone.
Two 2x6 shorty SLA Pro's
One T39, 16", 3012LF loaded
Tall AutoTuba, 20" wide, 2x 8" MCM 55-2421
TruckTuba, 8½" wide, 2x 8" MCM 55-2421

Marflinger
Posts: 107
Joined: Thu Dec 04, 2025 1:20 pm
Location: Germany-Blackforest

Re: 8*T30 30" dual 12" european

#54 Post by Marflinger »

Yes, basically halving the amount of wheels (and solving the dr250 carry problem and the dr250 stacking problem on the same page)

Rubber feet could be an option yeah, will think about this when playing around with the first. Will have to try around esp for the stacking later what works best; will post the results.
I'd reverse this, to have the sunken in counterpart on the cab to have the cab with a flush surface later, and the feet on the board.

I did a first listen now, and i really like it :))
1000044135.jpg
1000044133.jpg
Just fixed the drivers, connected with clamps and shut the door without gasket tape, and then placed in the worst possible way in a room.
And i was not disappointed :D

Here with one dr250:
1000044142.png
Even just one cab throws a lot, oh boy.
No leaks around the path, just the door has a lot of wind (as expected, tape after painting...)
But the combination with the dr sounds super nice, i only can imagine what 8 of these would do :D

I was far away from limiting, stepped outside for a second and even there everything was rattling...in terms of sensitivity really a nice design.
No eq, no measurements, just crossed and moved xo around between 75hz and 110hz...will do proper measurements with the 4stack, but so far i am already impressed :)

We've had whole events running with less quality than already one delivers, so with 8 i will be happy i think :)

I'd share the recording i sure did, but this says nothing...the measurements will be done when i got enough ready and the weather allows me to play outside...and these will be shared then :)

In case anyone in my area, you are welcome to listen.

All removed again, will sand cab a and start cab b next to paint them both in one set then. And then probably in pairs, will see how the space works best
DR250 (2 done, 2 to go)
8 T30 (in building phase)
driverack PA+
Wharfedale DP4065F
Prokustik FP14000

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Tom Smit
Posts: 7679
Joined: Sat Jan 05, 2008 1:24 pm
Location: Sarnia, Ont. Canada

Re: 8*T30 30" dual 12" european

#55 Post by Tom Smit »

Kudos on pushing forward after the listening test. Thanks for the "sound" update. :)
TomS

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