Dunavin’s OTop 8 build
Dunavin’s OTop 8 build
Start of a very slow build…
No beauty contest here, but will be functional.
No beauty contest here, but will be functional.
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
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- Posts: 8317
- Joined: Fri Nov 27, 2009 11:37 am
- Location: New Braunfels, TX
Re: Dunavin’s OTop 8 build
Looks nice.
6 - T39 3012LF
4 - OT12 2512
1 - T24
1 - SLA Pro
2 - XF210
"A system with a few knobs set up by someone who knows what they are doing is always better than one with a lot of knobs set up by someone who doesn't."
Re: Dunavin’s OTop 8 build
Thanks Bruce!
I’ve got it wired up to the ASDs and Betas for testing.
It makes music
I’ve got it wired up to the ASDs and Betas for testing.
It makes music
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
Re: Dunavin’s OTop 8 build
Sweet. Congrats on kicking off the new project
How many tops are you making this time around?
How many tops are you making this time around?
Build in process - 2 WH6, one Alpha 6a loaded, one PRV Audio 6MB250-NDY loaded
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
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
Re: Dunavin’s OTop 8 build
Not as many as I’d like
This will be a very small, very mobile, rig. Two tops and two MAYBE four T39s
I loved my six DR six Tuba set up, but never had a chance to use it all together. Just took up too much room.
This will be a very small, very mobile, rig. Two tops and two MAYBE four T39s
I loved my six DR six Tuba set up, but never had a chance to use it all together. Just took up too much room.
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
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- Posts: 89
- Joined: Tue Aug 03, 2021 3:10 pm
Re: Dunavin’s OTop 8 build
Good luck with the build.
Re: Dunavin’s OTop 8 build
Looks great, I'm about to build crossovers for my DR200's dragging my feet as it'll be no beauty contest winner either!
Re: Dunavin’s OTop 8 build
Here's a few pictures, hard to find any time these days, though Spring is around the corner
Here i drew a line a line on my cross cut sled, to help me line up a stop block for cutting the CD horn pieces. I also made my original cuts bigger than necessary, so that i could cut up to the line.
Test fit
Drawing out the OT8 speaker mounting plate
AND the mail man was nice to me today! worth the wait! Now i wish i would have ordered four...
Here i drew a line a line on my cross cut sled, to help me line up a stop block for cutting the CD horn pieces. I also made my original cuts bigger than necessary, so that i could cut up to the line.
Test fit
Drawing out the OT8 speaker mounting plate
AND the mail man was nice to me today! worth the wait! Now i wish i would have ordered four...
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
Re: Dunavin’s OTop 8 build
That pool table will make a nice flat surface to build on. I'm not a pool player so it would work for me anyway lol
DR200 x2
T24 16" x2
T39 20" x2
DCX2496
DEQ2496 x2
FBQ2496
Mackie DL1608
T24 16" x2
T39 20" x2
DCX2496
DEQ2496 x2
FBQ2496
Mackie DL1608
Re: Dunavin’s OTop 8 build
Ha! Indeed it would make for a great build table.
I do play and once in awhile convince the wife to play a few rounds. Somehow she mistakes it for a laundry table
I do play and once in awhile convince the wife to play a few rounds. Somehow she mistakes it for a laundry table
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
Re: Dunavin’s OTop 8 build
The OT8 plans call for a phase plug extension, these are flat disc. Would there be any advantage to making them similar to the throat filter called out in the DR plans?
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
- Bill Fitzmaurice
- Site Admin
- Posts: 28645
- Joined: Tue May 02, 2006 5:59 pm
Re: Dunavin’s OTop 8 build
I tested various configurations, what's in the plans is what worked best.
Re: Dunavin’s OTop 8 build
Will do then, thank you Bill!
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
Re: Dunavin’s OTop 8 build
Working on the CD horn.
I tried to glue everything as straight as i could, but ended up with some unevenness.
Nothing a sanding block can't knock down.
I tried to glue everything as straight as i could, but ended up with some unevenness.
Nothing a sanding block can't knock down.
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
Re: Dunavin’s OTop 8 build
Kicking into full build mode now, as i have a gig on the 22md and 23rd
I'd love to get my T39s done as well, but if i can just get the OT8s done, it'll me a miracle. Which actually, for this gig, will be fine if there are no subs.
Going to try and grab as many pictures as i can along the way.
Just a blank for the CD driver, I did draw out the outline, center hole and mounting holes in QCad and then just used a pic to make the center holes.
Cutting out the holes for the driver baffle. I know ... way too much extra work here, but i've gone the extra mile and am routering an 1/8th deep slot for the panels to fit into. No weight penalty and will make for a stronger cabinet. ( yes i made the appropriate panels 1/4 longer to accommodate )
I'd love to get my T39s done as well, but if i can just get the OT8s done, it'll me a miracle. Which actually, for this gig, will be fine if there are no subs.
Going to try and grab as many pictures as i can along the way.
Just a blank for the CD driver, I did draw out the outline, center hole and mounting holes in QCad and then just used a pic to make the center holes.
Cutting out the holes for the driver baffle. I know ... way too much extra work here, but i've gone the extra mile and am routering an 1/8th deep slot for the panels to fit into. No weight penalty and will make for a stronger cabinet. ( yes i made the appropriate panels 1/4 longer to accommodate )
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba