4x Titan 48 36' and driver upsize on 2x Titan 48 24' wide.

[AussieDoof]

Hey all. Jumping over from my other thread "Titan 48 size questions... Outdoor rig".

Um... Basically building a sound rig for outdoor bush parties in Western Australia.

I have bought 6 18sound 15nlw9500's. My goal is to build 4x 36' wide Titans and re-work my 24' wide titans to fit the new 15' drivers. Eventually depending on the output I may just build another 2 36' wides to replace the 24's but at the moment budget is now a thing.

Alot of the beginning will just be pics of the stuff I've done so far.

Built so far:

2x Titan 48 24' wide 12' loaded
1x Titan 48 36' wide 15' loaded

[AussieDoof]

Having removed the front of the first small titan I am wondering whether I need to sink the driver into panel 2 or whether I can just mount the driver into the double 12mm thick ply that was the old anchor and driver cutout... pictures may explain better.... Let me know if people want pics of the original 24' build or just keep it to current build... all up to what people want to see ect.

Peak to Peak excursion is 39mm.... so Xmax is approx 19mm and this is the spec I need to worry about for driver hitting the front pannel braces? Also is this going to increase compression in the begining of the throat and possible blow my driver? I just don't know.

[horizonize]

Sounds like a plan!

I have been looking at the 18 sound 15 inch drivers after two 15NLW9300s became available.

Linear xmax on the NLW9500 is listed at 9mm (for 18mm total travel). I don't think you'd want to be forcing cone much beyond that routinely. Maybe 15 mm clearance between brace and driver (at rest with no signal) would be enough. Limit at 60v would be my guess.

Peak to peak xmas (as I understand it) is the point at which the coil is at risk of moving beyond the voice coil gap and outside the control of the magnet and thereby destroying itself, or alternatively bottoming out and destroying itself.

[sine143]

Bill has stated the 18 sound 9300 at least has 11mm of xmax as per a klippel test. I dont know if the same thing applies to the 9500.

[AussieDoof]

Thanks guys. Yeh I realised that the peak to peak was going to be breaking point but figured if I gave it 19mm of room (which I will never need anyway because I will be breaking the driver) then I could be safe in the assumption that I have allowed adequate space for excursion...

So that just leads me to th question as to whether or not looseing the 12mm that u usually have when u mount the driver into panel 2 will do any damage to the drive due to compression.... I may be barking up the wrong tree but i dont want to blow my driver just because i didnt ask.

Thanks guys.... P.s when I can get my pics from my phone to my computer I'lll upload some pics

[AussieDoof]

Pics of the build so far.

[sine143]

very clean guys! keep it up!

[Grant Bunter]

Looking great J,

Keep on with the good work...

[LelandCrooks]

The 15lw is a killer.

[AussieDoof]

So,
Here's the rig as it stands now...

2 Australian Monitor Double 15's (Quasi bandpass, Double Beyma 15's, + 3' beyma compression horn) 140-20k hz
2 Kosmic Sound Western Australian Single 15' W bins (18sound nlw9500 loaded, approx 3 mt throat) 90-140 hz
2 24' wide + 2 36' wide TiTan 48's (18sound nlw9500 loaded) 35-90 hz

If I need more bass I can always build a couple more 36" Titans... But for now... INCREDIBLE!!!

Thanks so much Bill... the only other rig that mine has been compared to was a T60 rig that was kicking around a few years back

[Bill Fitzmaurice]

2 Australian Monitor Double 15's (Quasi bandpass, Double Beyma 15's, + 3' beyma compression horn) 140-20k hz
2 Kosmic Sound Western Australian Single 15' W bins (18sound nlw9500 loaded, approx 3 mt throat) 90-140 hz

No offense, but that doesn't make any sense at all. I can't see the reason for running one cab from 90-140Hz and another from 140Hz on up. If that 2x15 cab isn't perfectly capable of going to 90Hz there's something seriously wrong with it.

[Ryan Sober]

No offense, but that doesn't make any sense at all. I can't see the reason for running one cab from 90-140Hz and another from 140Hz on up. If that 2x15 cab isn't perfectly capable of going to 90Hz there's something seriously wrong with it.

+1.
Unless you want that range to be +6-12dB louder than the rest, it's pointless.

[AussieDoof]

Thanks for the response If I am doing something wrong please let me know.

The titans are running to 90 hz so that the bass stays non directional (I was told from 100 hz up you can tell where the bass is coming from)

The two Australian Monitor top boxes are capable of running from 45 hz up but that is an awful lot of work for two boxes to be doing, even 90-20k seems a little much.

I felt that there was something missing in the sound when i was just running the AM's over the Titans.

Now that I am running them from 140 it seems to be a much fuller sound in the lower vocals, and yes I do run the W bins (90-140) less hard than the titans and AM's in order to create an even sound....

Have I understood the problem? As I have said I am learning... To my ear (and my customers) It sounds much better now. I could have tuned the EQ hard at low end to get the Kick out of the AM's but then the drivers seemed to be working harder and these top box's are neer on impossible to replace now...

[Bill Fitzmaurice]

I felt that there was something missing in the sound when i was just running the AM's over the Titans.
Now that I am running them from 140 it seems to be a much fuller sound in the lower vocals, and yes I do run the W bins (90-140) less hard than the titans and AM's in order to create an even sound....

Then there's something seriously wrong with the AM cabs. 2x15s incapable of going full tilt to 90Hz are, in a word, defective.

To my ear (and my customers) It sounds much better now. I could have tuned the EQ hard at low end to get the Kick out of the AM's but then the drivers seemed to be working harder and these top box's are neer on impossible to replace now...

They should be replaced ASAP, because their inadequacy forces you to carry a lot more gear than you should have to.

[escapemcp]

You know what's coming next, right??:



or



And with good reason. Admittedly your rig won't look as beefy, but that also means you won't have to lug it! I shock people every time I switch on my rig. When I'm unloading people think I'm a joke - when I turn it on, guess who's laughing then Your skills obviously are up to the task, so sell the tops and w-bins and build 4 DR250s. Job done