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12sb30 let me finish :p lol |
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Mark James 
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Joined: 15 January 2006 Location: rig side Status: Offline Points: 5306 |
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 Topic: 12sb30 let me finish :p lolPosted: 28 September 2010 at 8:44pm |
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just did a sim using the inputs for horn resp[onse posted I believe by bitzo on the data base thread.
basicaly take the 1850 horn inputs.....
divide by 3 and times by two on everything [we are planning on using the 12" sb30 just for horn response modeling purposes]
errrrr and now sim a stack of six [ie times all inputs except lengths by 6 and set driver arrangement to 2 in series and 3 parralel]
now sim this in 2pi with the sb30 12" by pd..........
errrrrrr am i missing something? 65ish hz< say 180hz seems prety impressive for 6 drivers costin say £85 each and needing say 3 channels of 1kw at 4ohm amping.....
have I missed something? or have I stumbled upon an idea for smaller [ie large small/medium small ish rig] type systems where 3 channels of 1kw at 4ohm 60<160ish hz with say a pair of 15/18 reflex to cover that last octave and say a pair of x10 could be nice for a small multi purpose system?
sory that graph looks far toooooo good for how much itd cost to build :P
any one else? [even if no one has any input but sees what I just saw.. Im sure if its as goos as I see someone would have done it allready...]
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bitzo
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Posted: 29 September 2010 at 8:49am |
not by me, I only copy the HR input's screenshot from kpippen. Hr now have the offset arrangement so should be better modify the input in that way. |
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Mark James
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Posted: 29 September 2010 at 9:10am |
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yeah Im using horn response v28
still trying to work out how to use the offset a rrangement, I always thought the horn length was more liuke 1.5/1.6 meters than 2.1 as well.
but serously tho the result looks ni ce :P
how would you go about modding the inputs to suite the offset arrangement?
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bitzo
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Posted: 29 September 2010 at 10:44am |
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now I can't fell confortable using HR. Akabak is really better to resize/tuning cab, you have to make a dynamic model of cab and akabak model the horn for you. something like my cubo12 script.
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Mark James
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Posted: 29 September 2010 at 11:24am |
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yeah ill get into aj horn and akabak once i got my head round horn response lol
so any idea if this idea is worth taking further?
four cabs on top of 2 x1s according to my crap sims cud be dangerouse for what it is :p
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LjudLahger
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Joined: 31 July 2008 Location: Sweden Status: Offline Points: 837 |
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Posted: 29 September 2010 at 2:33pm |
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Are you using that crap plots for a straight horn? I did once, but with my own measurements form the plan, it looked like hell, if using one cab.
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Mark James
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Posted: 29 September 2010 at 3:14pm |
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errrrrrrrrrr think so thats why im asking :p altho maybey I can still fold what I have into a sensible box to use this driver??? just pondering to be honest but might be a good idea
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Mark James
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Posted: 29 September 2010 at 3:16pm |
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and i was simming with 4/6 cabs lol semed pretty flat 65<220hz so prob useable say 70 <180 ish on some kind of bp6 sub or something for a smaller system |
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LjudLahger
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Posted: 29 September 2010 at 4:45pm |
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I didn't mean to be rude or anything :)
Here is my hornresp numbers for 1850 and maybe if you scale it down you could get more accurate curves S1=660.00 S2=1044.00 Con=41.40 S2=1044.00 S3=1770.00 Con=64.30 S3=1770.00 S4=2760.00 Con=27.40 S4=2760.00 S5=4614.00 Con=23.00 Vrc=40.00 Lrc=27.00 Fr=0.00 Tal=0.00 Vtc=23000.00 Atc=1800.00 I think that it sounds like a cool idea to use 12" in those! Good luck! |
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Mark James wrote: