Victory at last! My O15TB's are done! A few pictures....

[Pixelmaster]

I'd have to say that this was probably one of the most enjoyable projects I've ever taken on. The project was relatively easy but it does take focus and a well thought out, methodical approach. I made mistakes wiring my crossovers (see comments below) but that was part of the learning process (and partly due to working way too late into the night).

I can't tell you how happy I am with the outcome. The speakers sound fantastic! I'm using these for powering the digital slide presentations I put together (sound tracks built in Garageband). I am a semi-professional photographer. Thanks to the O15TB's the sound tracks are now larger than life!

I'm powering these with a QSC PLX1802 with a DBX DriveRack PA.

Here are a few images from my build...I should tell you that I did take some of David Perry's ideas (putting a corner handle at the top back corner of the cab and adding corner casters). I also extended the front edge of the cabinet sides 1/2" in case I ever want to add a metal speaker grille. The handle and casters are life savers...makes the cabinets much easier to transport.

Thanks to everyone that helped me trouble shoot this build as it progressed! A special thanks to Leland...I ordered all of the parts for this build from him and it was a HUGE time saver.

P.S. 5/26/08 - I just posted some additional images today - look further in this post if you want to see more images from the build. I hope these pics help you with your construction!












Check out the missing jumper from (-) to (-) and the fact that I mounted both coils in the same axis. I rotated one coil 90 degrees and remounted it to correct this in the end on both the mid-range and tweeter crossovers.



A friend provided me with acoustical grade foam and a pressure pot for applying the Duratex.

Finished! (I built two of these; each is a mirror image of the other so that I can stack them for long throw situations or book them at 90 degrees for a short throw set-up).

[Clint Gale]

The image location is actually

http://lgossphotos.smugmug.com/photos/2 ... RWdW-M.jpg

right click image on page and link to that image location

so use the image tags with that instead of the browsers location



And by the way that is one beautiful cabinet. Great work!

[djwoo]

That´s a great job, very professional congratulations!!

[LelandCrooks]

Those are some sweet cabs.

[Tim A]

Very, very nice! Great job!

One bit of bad news:

You're hooked!

[David Carter]

Great cab, and outstanding photography! It's clear that you take as much pride in your pictures as in the cab itself. Great job on both counts!

[Nordskov]

Now thats a smoothe looking paint job! And very accurate cutting too.
Congrats.

And I see that you have found the optimal use of MDF board...

[Mikey]

Those are REALLY nice. Looks like the control of a pressure pot system makes a big difference with the Duratex.

[LelandCrooks]

Those are REALLY nice. Looks like the control of a pressure pot system makes a big difference with the Duratex.

It sure does, from those pics. I use an airless rig, that will handle elastomerics. Start with fairly high pressure, a 15 tip, you get a nice fine mist. Switch to a 17 or 21 tip, turn down the pressure quite a bit and you get the rough building finish. It appears the pressure pot allows the same thing with hopper gun.

Airless rigs rent for $60-70 a day, which if you have several cabs to do might be worth it. Duratex highly recommends the pressure pot system though.

[Pixelmaster]

As far as the paint job goes the pressure pot sure did work very well. I did brush on an initial coat and then sand that down. Used the Pressure pot after that for the final coat.

And yes, I am hooked. Problem is, the more I learn the more I realize how little I know about sound.

I used the cabinets last night for a show in a ballroom with 300 dinner guests. They worked great.

What I need to do now is learn more about how to control sound in a less than desirable environment. The acoustical pieces I played were crystal clear and powerful. I had some issues with the bass lines in some of the pieces I played being too boomy so I applied a parametric curve with the dbx driverack to minimize the issue but that was certainly a case of me flying by the seat of my pants.

Over all very happy with the enclosures. I also realize that I have a great deal to learn about sound reinforcement. I guess that's part of the fun. If it were too easy it would be boring?

L.

[Greenman]

Great looking workmanship. You should be proud.

[Mark Coward]

Beautiful work. Did you break in the 3015LF's before using them?

I had some issues with the bass lines in some of the pieces I played being too boomy so I applied a parametric curve with the dbx driverack to minimize the issue but that was certainly a case of me flying by the seat of my pants.

I've had similar problems with many recorded tracks, MP3's, etc. If you're mixing your own tracks, it would help to test them through the O15's. I've made backing tracks that sounded fine through headphones, but were extremely bottom heavy through the PA with subs.

[Pixelmaster]

I did not break them in ahead of time as there was no time...

I'd like to break them in but I've seen so many different approaches and I'm not really sure which approach I should utilize.

[Mark Coward]

I did not break them in ahead of time as there was no time...

I'd like to break them in but I've seen so many different approaches and I'm not really sure which approach I should utilize.

It doesn't really matter how you do it, makes no difference in the long run - they will break in with ordinary use. Running a 30hz test tone for several hours just does it faster. They'll have considerably better bass when broken in.

[Sydney]

Your photo work is extremely nice.

Photoshop offers a variety of ways to create that background "pull" effect.
I'm curious how you did yours
( you don't have to say if it's a "secret" )