Omnitop12, my first
- Bill Fitzmaurice
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Re: Omnitop12, my first
I wouldn't do that unless he replaced all of them.
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Re: Omnitop12, my first
Agreed.....Bill Fitzmaurice wrote: ↑Sun Oct 30, 2022 4:25 pm I wouldn't do that unless he replaced all of them.
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: Omnitop12, my first
With some support I am going to replace all of my Asd-1001 cds with f151m-8 cds. I am running active filters so adjusting to 1.2khz will be pretty easy. I am still going to experiment with dual loading cds per cab so more to follow.
Advanced Concepts Underground Audio
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Re: Omnitop12, my first
Great build thread mate! Glad your alloy horns got the nod and worked out, those things are a pita in ply..
AT8 14", AT10 19", T30 28" LAB12, T48 36" 3015LF, THT 20" LAB15, SLA 4x3"/4x4", CArray 6x4", TLAH, TLAP, J10 FLat, J12 Flat, OT12 Flat, OT15 CD, SLAP 2x6"/4x6", WH8, DR280 Mld'd, XF210. Next J10L
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Re: Omnitop12, my first
Just changing to the F151 will see an increase of 4.5dB in sensitivity from the driver, with minimal fuss, for the same cost as buying 2 ASD's, based on Eminence website current pricing...
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" KL3010LF , 2 x 28" 3012LF.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" KL3010LF , 2 x 28" 3012LF.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...
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- Posts: 8320
- Joined: Fri Nov 27, 2009 11:37 am
- Location: New Braunfels, TX
Re: Omnitop12, my first
Yep, I think 2 F151s per box would outrun the 12. Anyway, it would take a redesign of the horn to fit in there. I guess you could modify one desiged for the Jack....but, I don't think it would be worth it.Grant Bunter wrote: ↑Mon Nov 07, 2022 3:25 amJust changing to the F151 will see an increase of 4.5dB in sensitivity from the driver, with minimal fuss, for the same cost as buying 2 ASD's, based on Eminence website current pricing...
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: Omnitop12, my first
Bill is going to have a cow, but I did this to try out the idea. I am not worried about the highs out running the mids so much as maintaining as much fidelity as I can. Seeing as I have blown some of my high freq drivers I believe I should fortify that some.
Advanced Concepts Underground Audio
Re: Omnitop12, my first
What's your impression of the results? Anything one way or the other?
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
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- Joined: Mon Nov 28, 2011 11:12 am
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Re: Omnitop12, my first
errr, did you change the filters? edit, forget that bit, i saw active management above after a re read.
Did they get wired in series or parallel?
Did they get wired in series or parallel?
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" KL3010LF , 2 x 28" 3012LF.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" KL3010LF , 2 x 28" 3012LF.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...
Re: Omnitop12, my first
I have done some basic testing with this dual driver setup. I am still running the Asd-1001 drivers at the moment. I have them wired in series. Output is about the same, double the displacement and the impedance makes sense to me.
I have been trying different crossover points despite what those drivers should be limited to.
How do they do preform? About the same eq needed as before. I can’t tell that there is any real dramatic negative effects with the dual configured horn. It all sounds the same to me from all angles.
I received my order for my new drivers today. Once I have had a chance to use them I’ll let you know my experience with them.
I have been trying different crossover points despite what those drivers should be limited to.
How do they do preform? About the same eq needed as before. I can’t tell that there is any real dramatic negative effects with the dual configured horn. It all sounds the same to me from all angles.
I received my order for my new drivers today. Once I have had a chance to use them I’ll let you know my experience with them.
Advanced Concepts Underground Audio
Re: Omnitop12, my first
So much for claiming profit on the books this year. Oh well there is always next year.
Advanced Concepts Underground Audio
- Chris_Allen
- Posts: 3355
- Joined: Wed Jul 11, 2007 2:43 pm
- Location: Huddersfield, UK
Re: Omnitop12, my first
I'm not sure the blade on my table saw would cope with those cuts and the PL just wouldn't hold
Built:
6xDR200, 2xT39, 2xT48, 2xJack110, 1xOmni10.5, 1xAutotuba, 1xT18, 1xSLA Pro, 1xW8, 1xW10
6xDR200, 2xT39, 2xT48, 2xJack110, 1xOmni10.5, 1xAutotuba, 1xT18, 1xSLA Pro, 1xW8, 1xW10
Re: Omnitop12, my first
I did a thing! I found a part on aliexpress that is pretty close to the right form factor for the high frequency horn of my otop12 speakers.
https://m.aliexpress.us/item/325680191 ... _shipto=US
They are not perfect but they are close enough that I went ahead and bought a grip of them. The length per unit is 6 5/8” tall for 13 1/4” with two. They are an inch wider than the prescribed horn but they are only about a 1/4” taller. I paid $16 each for 16 units and that includes shipping.
I intend to set them up and do some testing soon after I sort out a way to mount them! I shall report my findings
https://m.aliexpress.us/item/325680191 ... _shipto=US
They are not perfect but they are close enough that I went ahead and bought a grip of them. The length per unit is 6 5/8” tall for 13 1/4” with two. They are an inch wider than the prescribed horn but they are only about a 1/4” taller. I paid $16 each for 16 units and that includes shipping.
I intend to set them up and do some testing soon after I sort out a way to mount them! I shall report my findings
Advanced Concepts Underground Audio
Re: Omnitop12, my first
Interesting. Do you have a way to measure and document the various results. You know me, I love numbers and data.
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: Omnitop12, my first
yeah, I have Room Wizard EQ. I would like to graph a hand full of situations.
-Single alum horn - ASD-1001 2k high pass
-Dual alum horn - ASD-1001 2k high pass
-Dual alum horn - ASD-1001 1.2k high pass
-Dual wood horn - ASD-1001 1.2k high pass
-Single alum horn - F151M-8 1.2k high pass
-Dual alum horn - F151M-8 1.2k high pass
-Dual wood horn - F151M-8 1.2 k high pass
-New plastic dual horn - Asd-1001 2k high pass
-New plastic dual horn - Asd-1001 1.2k high pass
-New plastic dual horn - F151M-8 1.2k high pass
It will take me a few days to coordinate this effort, but I am really curious to see what I get with these different configurations. I will put up a post about it.
-Single alum horn - ASD-1001 2k high pass
-Dual alum horn - ASD-1001 2k high pass
-Dual alum horn - ASD-1001 1.2k high pass
-Dual wood horn - ASD-1001 1.2k high pass
-Single alum horn - F151M-8 1.2k high pass
-Dual alum horn - F151M-8 1.2k high pass
-Dual wood horn - F151M-8 1.2 k high pass
-New plastic dual horn - Asd-1001 2k high pass
-New plastic dual horn - Asd-1001 1.2k high pass
-New plastic dual horn - F151M-8 1.2k high pass
It will take me a few days to coordinate this effort, but I am really curious to see what I get with these different configurations. I will put up a post about it.
Advanced Concepts Underground Audio