Reservation Tuba 24 Build

Message

zefrenm · #1 Post by **zefrenm** » Wed Mar 20, 2013 12:08 pm

My cousin has finally found a need for small subwoofer for one man gigs He needed something that would be quick to set up, move, and transport. So after looking at the BFM site we choose the tuba 24. After building 6 tuba 60s, 6 onmi tops; with only the last three Omnitops, being square ;I decided to build the tuba 24 with an alternate panel assembly that I learned during the Omnitop 12 Build. What I learn here I I plan to use building or “rebuilding” the tuba 60s.

zefrenm · #2 Post by **zefrenm** » Wed Mar 20, 2013 12:12 pm

Day one - Part II

Bas Gooiker · #3 Post by **Bas Gooiker** » Wed Mar 20, 2013 3:27 pm

No loitering in your life... You must have been building pretty much non stop over the last year.

What will these be loaded with?

zefrenm · #4 Post by **zefrenm** » Thu Mar 21, 2013 10:27 am

What i learned today is that the outermost panels that are most parallel to the outside determine the final Square of the cab, but i'll have to think about that to see if i can prevent that in the TUBA 24 #2 build. overall i'm happy with this build since all of the cuts have lined up with minimal fuss.

zefrenm · #5 Post by **zefrenm** » Thu Mar 21, 2013 10:34 am

Day 2 Pt. II

Gregory East · #6 Post by **Gregory East** » Sat Mar 23, 2013 1:29 am

I wonder if you may have been working off ply that wasn't squarely cut in the factory. It isn't necessary to go to such extreme fuss if your panels are properly square.

zefrenm · #7 Post by **zefrenm** » Sat Mar 23, 2013 6:46 pm

this has been the quickest biuld subjectively to me, all the extra careful measurements seems to make it easier but i dont fell many will do the same as me. I only increased the tolerances because the situation of my garage. A 28 year old Circular saw that my Grandfather owned. a drill about as old as that, a bargain jig saw and an angle girder. The rest are files and assorted handsaws. Only after doing the above and beyond have my cabs stopped giving me surprises and a three day Tuba 24 for me possible.

zefrenm · #8 Post by **zefrenm** » Sat Mar 23, 2013 6:49 pm

continued. Now to start Tuba 24 - 2 while finishing the first one.

zefrenm · #9 Post by **zefrenm** » Sat Mar 23, 2013 6:54 pm

Bas Gooiker wrote:No loitering in your life... You must have been building pretty much non stop over the last year.

What will these be loaded with?

My Cousin went with the Lanzar 10 max pro

2'' Dual Layer High Temperature Kapton Voice Coil
60 + 60 oz. Heavy Double Stacked Magnet Structure
1200 Watts Peak Power
Dual 4 Ohms Nom. Impedance
Fs: 50Hz, Qms: 4.92, Qes: 0.84, Qts: 0.72, SPL: 85(dB), Vas: 4.908(Cuft)

Ryan A · #10 Post by **Ryan A** » Sat Mar 23, 2013 7:47 pm

Looks like a pretty beastly driver from a quick google search; besides being out of spec and missing some specs.

Let us know how it works out.

Radian · #11 Post by **Radian** » Sat Mar 23, 2013 9:50 pm

That's a fine cab you've got there Zef!

zefrenm · #12 Post by **zefrenm** » Sun Mar 24, 2013 10:51 am

Ryan A wrote:Looks like a pretty beastly driver from a quick google search; besides being out of spec and missing some specs.

Let us know how it works out.

It sounds like the Tuba 60 except half the sensitivity.
IMO it takes too much power to make sound and i imagine that the foam surround will blow out after few gigs.
But it's my Cousin's Cab so i had no choice.
SOunds good though.

miked · #13 Post by **miked** » Sun Mar 24, 2013 10:10 pm

Cab looks great. Very solid. This build went VERY fast. I wouldn't be halfway done yet. How'd you come up with the design for the braces? Definitely unique.

byacey · #14 Post by **byacey** » Tue Mar 26, 2013 9:26 am

I really like the braces too; they have a Victorian era look. It's refreshing to see something like that when everything these days is made to look like industrial hardware.

There's no substitute in any sort of building for accurate and square cuts. As soon as one or the other slides, the final outcome of the whole project deteriorates quickly. I know a good table saw is beyond the budget of some, but for building things like this, a well set up saw really simplifies the construction.

BillFitzmaurice.info