Loudspeaker Design
https://billfitzmaurice.info/forum/
They're twice the size of the OTop 12 with less sensitivity. They're called 'full range' because they're just that, meant to stand alone with no sub. If you're running subs then Omni 12 is the wrong tool for the job, a waste of pack space.bitSmasher wrote:What's wrong with the setup of Omnis over T24s, if everythings crossed over and EQd appropriately?
djlivex wrote:Hi DJPhatman I am not trying to dish your point I know where you are coming from with this, this project I have been planning since late 2010. Maybe it's a wrong setup but I am not trying to prove a point as to this setup but it is a pleasure to build Bills designs and when people are on the dance floor enjoying themselves those charts you keep showing just don't mean any anymore. I know this system will be loud especially the amps and other electronics I will be buying in the next month or so. Believe me I know where you are coming from no disrespect maybe my system is all messed up mixing cabs. I have a couple of shows this Fall 2012 and they will be used till the end of the year. There are 3 systems I can have on hand from people I know in the business, I plan to start gathering wood again (BB) for my next project a large 5 way sound system using the T36's (15mm exterior glue/12mm interior) as subs loaded with Faital Pros neo 15's, again it is just a plan and maybe I am doing something out of the norm for this site but I like to experiment, but I know it will be big and sweet sounding, and LOUD!!!!
That chart is 1w/1m sensitivity. More importantly, what is max output of both the O12 and T24?Gregory East wrote:What's the highpass on omni12? Looking at the size of it, and it not being a full on horn, can't be same as T24.
How hard, and how low?Bill Fitzmaurice wrote:Limiting and high passing aren't really necessary, as you'll hear the woofer(s) complain if you push them too hard. Just pulling the EQ below 40Hz down all the way is sufficient
), just hoping to learn from the discussion. It's 2.83v/1m, as are all our charts unless otherwise noted. With a 4 ohm 2x10 that makes it 2 watts.bitSmasher wrote: That chart is 1w/1m sensitivity.
What you will be doing will give less bass, not more. The >100hz output of the O12 is greater than the T24s. Since the O12 will take 3X the power, you are adding T24s for no good reason.djlivex wrote:Hi DJPhatman I am not trying to dish your point I know where you are coming from with this, this project I have been planning since late 2010. Maybe it's a wrong setup but I am not trying to prove a point as to this setup but it is a pleasure to build Bills designs and when people are on the dance floor enjoying themselves those charts you keep showing just don't mean any anymore. I know this system will be loud especially the amps and other electronics I will be buying in the next month or so. Believe me I know where you are coming from no disrespect maybe my system is all messed up mixing cabs. I have a couple of shows this Fall 2012 and they will be used till the end of the year. There are 3 systems I can have on hand from people I know in the business, I plan to start gathering wood again (BB) for my next project a large 5 way sound system using the T36's (15mm exterior glue/12mm interior) as subs loaded with Faital Pros neo 15's, again it is just a plan and maybe I am doing something out of the norm for this site but I like to experiment, but I know it will be big and sweet sounding, and LOUD!!!!
This quote sums up my thoughts so thanks for saving me typing it out.CoronaOperator wrote:Just to be objective, the Omni 12's will lose considerable bass pole mounted or mounted up high as they should be. The 4 dual tuba 24's can take advantage of proper placement and corner loading and 4 duals will have considerable more Vd than the omni's. Having the omni12's by themselves also is a nice full range rig should the need without subwoofers arise.
Its not the rig I would get into as it was mentioned, it is a poor use of packspace and not scaleable but if the OP already has the omni's he may as well use them for now.
Where horns rule is when coupling multiple cabs as djlivex will be doing. (By the way djlivex, nice build pics, lookin' good) I like small pack space and don't need multiple cabs so I chose the Omni subs over a horn. I believe a single Omni sub will give more bass than a single horn sub of the same cab volume.bitSmasher wrote:If it were as simple as the chart suggests, we should all build Omni12 subs not big complex folded horns.
From my experience with my O12 subs (3012LF) response drops like a rock at 50 Hz similar to how my OT12 response drops off at 125 Hz. While the response was way down at 40 Hz vs 50 Hz, I was still able to feed a full 60 volt sine wave at 40 Hz and it wouldn't fart out. Knowing this I never hesitated in boosting 40 Hz to even out the response. I just want to note that this is my experience only and Bill's chart doesn't show this.Gregory East wrote:I know what the chart is. What it doesn't say is where the omni gives up the ghost due to overexcursion, read the question.
Although, my hands are a mixture of regular skin color and darker tan color from the PL embedding itself in my fingerprints and wrinkles. That'll be there for another week or so.I don't think PL fumes are a huge issue. Bondo fumes on the other hand ...Gregory East wrote:Eaten skin could lead to sensitisation, if that isn't already happening, next stop is allergic reaction to all kinds of stuff, if it wasn't for the misery I endured I'd leave it out since the dismissal, the rest others will fill in for you, but I urge you to keep pl off yourself at all costs and ventilate the hell out of your workshop.
