Hi, You might reach your SPL goal if you push this suggestion or a similar size = 7x7x3 cu.feet FLH( Recycling your 2 Eminence 15" drivers) towards your room corner:
b🙂
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Try a 70Litre sealed enclosure fiiled with a couple of pounds of C4 or Semtex.
You should reach 140dB easily AND frequency wise flat down to DC. (+/- 3dB).
Let me know when you run it and I'll make a point of staying away....
You should reach 140dB easily AND frequency wise flat down to DC. (+/- 3dB).
Let me know when you run it and I'll make a point of staying away....
I am under the impression that the highest attainable SPL corresponds to a level ofsomewhere in the 190's limited by the negative pressure side reaching zero absolute pressure.
With that much space you can choose any cabinet that floats your boat... including the one you currently have. Just lay them on their side mouths together in your corner. You can use kappa pro 15lf2's to keep the cost down. (since 3015lf's are expensive these days)
Build as many as you think you need. Personally I would go for just short of your goal, and build 4 additional for a total of 6.
http://www.diyaudio.com/forums/subwoofers/185836-3015lf-th-35-40hz-but-only-20-deep-help-3.html Although 8 should fit in the space you have.
This is just an up/back TH. start at 4"x16" go up to 6"x16" and back at 12"x16"...
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If you want deep bass....some 2 od these should be enough....if not than 4.....you can build some clones. There is a lot of plans arround. I have 16 of them and it is enough to cover some 3-5000 people gig.
But you will need a lot of power and I doubt that yours domestic mains .....
Regards, Taj
EAW: SB1000z
But you will need a lot of power and I doubt that yours domestic mains .....
Regards, Taj
EAW: SB1000z
This system (large woofers with updated 3 way satellites) will give you around 130 dB with about 200-500 watts. I can't imagine doing that in a house. Do you realize what you are asking for or is this just something you think you want? 140dB knocks the feathers out of a chicken.
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I think he's seen "The Italian Job" remake where the guy wants a stereo powerfull enough to blow a woman's clothes off. A worthy goal, I think.
Doc
Doc
Yeah (well, pretty much - 184dB), but the positive side can still pass 2 atmospheres. It'd have to go a very long way past 2 atmospheres to get 300+dB
i seriously want to get as close to 140+ db as possible.. i listen often with my current levels where its normally 120-125db around the house and its just not enough bass.. I am pretty much tapped on power with my current setup just from a wiring setup though as my circuit breaker would trip if I added more power.. so realistically it has to be as close as I can get to 140+ with just using my QSC2450..
and I guess the top of it being distortion 😱
maybe even more distortion will get you to 140db 😀
in a house I reckon 140db of clean bass will be impossible
and it will probably go wrong long before that
but a nice violent booom might be possible
fore simulating an earthquake maybe
but music ? I doubt it
but even so, probably wasted
your ears brain will turn down your hearing sensitivity
and you wont hear half of it anyway
no worries I have a pair of NHT 3.3's in my theatre room with adcom 555 amplifier for when i want to listen to nice music.. yes i want violent wall shaking stupid ridiculous bass in my main level living room
If you have a big screen TV in the room to play movies and are willing to give up that kind of space for a subwoofer, (I estimated an internal enclosure volume of 112.7 cubic feet deducting for 1.5 inch enclosure walls and also 10% for bracing and vents), then I think you are making a mistake stopping at only 40 Hz or even 30 Hz.
As long as you are going to go this big, you should be able to get outrageous output down to 16 Hz and yes-you will feel the difference. There's a whole sonic world down there below 40 Hz-and most commercial subwoofers are too small to really access it.
Lots of post here about 140dB making you deaf but this is frequency dependent, at 20Hz 140dB is the kind of power you want: A-weighting - Wikipedia, the free encyclopedia
If I had 110dB @ 20Hz at the listening position I would be happy.
I suspect that 110dB spec is not far away from 120 to 130dB @ 1m @ 35Hz.
Looks like he only wants an extra 10dB.
I suspect that 110dB spec is not far away from 120 to 130dB @ 1m @ 35Hz.
Looks like he only wants an extra 10dB.
so currently for build options i am seeing 6 of my Th's or the othorn thing .. anyone else have any designs for boxes ?? that work within the given space.. I kind of would be interested in the down to 30hz option if someone has a box for that .. and i could do down to 30hz at say 130db .. that should make some people sick literally ha
Surface area,Surface area,Surface area, is your best bet.
I am not trying to push dipoles by any means but you can get alot of displacement in a much smaller area then the box method and you should have a much lower THD figure as well for a much cleaner BOOM !
Just a few things to consider as it all depends on what your requirements are besides just being loud. he,he
jer 🙂
I am not trying to push dipoles by any means but you can get alot of displacement in a much smaller area then the box method and you should have a much lower THD figure as well for a much cleaner BOOM !
Just a few things to consider as it all depends on what your requirements are besides just being loud. he,he
jer 🙂
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