Omni 12 or 15

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Votandrums
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Omni 12 or 15

#1 Post by Votandrums » Wed Mar 20, 2019 9:28 pm

I'm looking to build a pa for my cover band. I've already decided on t39's for the subs but I'm stuck on the tops. I'm an experienced woodworker of 15 yrs. I can't decide if I should build a omnitop12 ,15 or dr200. I'll almost 100 percent be using the setup for my cover band. Most crowd sized will be between 100-200 people. I plan on powering the subs with a qsc mx2000a pushing 650w per side and tops with a crown ce1000 pushing about 450w per side. I have plenty of eq and compressors to play with. Any advice would be great. For right now my plan was to run once t39 per side and one top. I'd be building more in the future. I'm a newbie to pa stuff. I'm fairly ok with electronics and have done some studio stuff so I have a grasp on ebay sounds good and what doesn't.

ACUA
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Joined: Sun Sep 25, 2016 6:21 pm

Re: Omni 12 or 15

#2 Post by ACUA » Wed Mar 20, 2019 10:42 pm

My two cents, well buy the cd with all the plans look over the dr series cabinets if you feel good about making those than that is the premium option. If not the otops are still really really good. I would go with the otop12 personally over the 15” and if money and space is s not an issuer I would go otop8 over the 12” version for sure. I went the single otop12 my self and built a single cab at a time as money allowed. I would rather have had otop8s for lower freq extension and narrower foot print and if I had a killer wood working shop and all the right tools the dr series is where it’s at.
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Tom Smit
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Re: Omni 12 or 15

#3 Post by Tom Smit » Wed Mar 20, 2019 10:53 pm

Hi, and welcome to the forum!

Skip the Omnitop15, and go the OTop12 or DR200, whichever you feel more comfortable with building. Since you have woodworking experience you should be able to have what is needed to build the DR200...it just takes a little longer to build.

The subs (any sub) should be placed beside each other, at a wall, or better yet, in a corner. Do not use them as a mount for the tops.

Besides the amps, you will need a DSP unit so that you can hard-limit the subs (EQ, delay, crossover, etc as well) . This is a must since one cannot hear when the subs are distorting, and thus can blow the driver.
TomS

Votandrums
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Re: Omni 12 or 15

#4 Post by Votandrums » Wed Mar 20, 2019 11:40 pm

Gotcha. I was a little worried about lower mid range response with the dr200 that's why I was considering the ot15. I know we have at least 2 shows booked 2mo out that'll be outdoors. With that said do you think that one top per side will be adequate for the size crowd that I mentioned. Up til this point I've only worked with direct radiating speakers so Itll ve a learning experience. I agree I have some gear still to acquire to safely run a rig. Any recommendations on a dsp unit for what I'm going to run? Thanks for everyone's replies

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Chris_Allen
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Re: Omni 12 or 15

#5 Post by Chris_Allen » Thu Mar 21, 2019 4:35 am

I always like to run two DR's per side as it flattens response. It also gives you the advantage of crossfiring and flat piezo arrays if you are going that route.

One DR has the same output of two OT12's but the OT12's are so much easier to stack, two DR's per side has to get you thinking, especially if you are setting of in a space where the audience get close to the cabs - it's not a problem, you just need to think about the solution.
Built:
6xDR200, 2xT39, 2xT48, 2xJack110, 1xOmni10.5, 1xAutotuba, 1xT18, 1xSLA Pro, 1xW8, 1xW10

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Bill Fitzmaurice
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Re: Omni 12 or 15

#6 Post by Bill Fitzmaurice » Thu Mar 21, 2019 6:50 am


Bruce Weldy
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Location: New Braunfels, TX

Re: Omni 12 or 15

#7 Post by Bruce Weldy » Thu Mar 21, 2019 9:42 am

Votandrums wrote:
Wed Mar 20, 2019 11:40 pm
Gotcha. I was a little worried about lower mid range response with the dr200 that's why I was considering the ot15. I know we have at least 2 shows booked 2mo out that'll be outdoors. With that said do you think that one top per side will be adequate for the size crowd that I mentioned. Up til this point I've only worked with direct radiating speakers so Itll ve a learning experience. I agree I have some gear still to acquire to safely run a rig. Any recommendations on a dsp unit for what I'm going to run? Thanks for everyone's replies
When I first built my system, I was running 2 OT12s and 2 T39s with a V-plate for outside gigs. You aren't going to blow their hair back, but it will handle that size crowd. But, if you have the time and money - build 4 OTops - while they sound good by themselves, they sound great when you stack two on a side. They just get warmer and you won't find a better vocal box. I highpass my tops at 125hz and low pass the subs around 118hz....... Been running OT12 and T39s for about 10 years now.....absolutely no complaints.

You will definitely need a dbx driverack for limiting on the subs - a standalone compressor won't do it. If you do it right, you'll never blow a driver. I haven't lost one yet.

However, I must warn you.....your system will continue to grow. You won't be able to help yourself. :mrgreen:

6 - T39 4-25" 2-22" 3012LF
4 - OT12 2512 Melded/NSD2005
1 - T24
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."

Bruce Weldy
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Re: Omni 12 or 15

#8 Post by Bruce Weldy » Thu Mar 21, 2019 9:51 am

Just for grins.......here's my setup when the system was small. 2 OT12s and 2 T39s......and then with 4 and 4.......and now with 4 and 6 - all at the same venue.
Attachments
071510 CITP3.JPG
CITP Unit 57 2013 005.jpg
CITP Setup 2.jpg

6 - T39 4-25" 2-22" 3012LF
4 - OT12 2512 Melded/NSD2005
1 - T24
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."

ACUA
Posts: 354
Joined: Sun Sep 25, 2016 6:21 pm

Re: Omni 12 or 15

#9 Post by ACUA » Thu Mar 21, 2019 2:29 pm

Great pics I appreciate them.
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rfauske
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Re: Omni 12 or 15

#10 Post by rfauske » Thu Mar 21, 2019 5:27 pm

Why are you not holding the subs together ?

Bruce Weldy
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Location: New Braunfels, TX

Re: Omni 12 or 15

#11 Post by Bruce Weldy » Thu Mar 21, 2019 5:41 pm

rfauske wrote:
Thu Mar 21, 2019 5:27 pm
Why are you not holding the subs together ?
Didn't have enough glue.... :mrgreen: :mrgreen:


The stacks are far enough apart to split 'em with only a very tiny null at one spot in the audience. Plus, there are steps in front of the stage. In this case, stacking 'em makes sense and works fine.

Typically, I'll always put the subs together in the front of the stage. I'm never in venues small enough to wall load.....

6 - T39 4-25" 2-22" 3012LF
4 - OT12 2512 Melded/NSD2005
1 - T24
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."

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Chris_Allen
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Re: Omni 12 or 15

#12 Post by Chris_Allen » Fri Mar 22, 2019 2:24 am

Fortunately, Bruce, you have space for six more T39's.....
Built:
6xDR200, 2xT39, 2xT48, 2xJack110, 1xOmni10.5, 1xAutotuba, 1xT18, 1xSLA Pro, 1xW8, 1xW10

Bruce Weldy
Posts: 7208
Joined: Fri Nov 27, 2009 11:37 am
Location: New Braunfels, TX

Re: Omni 12 or 15

#13 Post by Bruce Weldy » Fri Mar 22, 2019 10:14 am

Chris_Allen wrote:
Fri Mar 22, 2019 2:24 am
Fortunately, Bruce, you have space for six more T39's.....
At the outside venues? Yes..... in my trailer? No....

My rig will get no bigger than it is. I have no desire to compete with the big boys. I fill a niche that very few folks live in. Either they are small or really big.

The little guys can't handle the size of these events and the big boys cost more. Although the one guy in town that can compete in my size range is George Strait's production manager....spent a couple of decades running sound for him, then took over the whole stage. Now that George isn't out much, Paul's doing a bunch of shows at a venue here in town.

6 - T39 4-25" 2-22" 3012LF
4 - OT12 2512 Melded/NSD2005
1 - T24
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."

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