115dB at 25Hz half space is about 2000cc of displacement. A 12" will need to Xmax 4cm to do that, an 18" 1.6cm. A few of the pro 18's can do it, but their Fs is typically too high and may not work in a box that size.Defo said:Looking for an high efficiency sub driver (93db+) which can do 115db at 25 hz, and a maximum 150 liters enclosure. Around 300 usd per driver / pair.
Any recommendations?
Seems you are wanting a driver that will break Hoffman's Iron Law an do it for small $. Unlikely to happen.
Go look at Illka's subwoofer tests and see what can actually be achieved.
Sub tests.
Re: Re: High efficiency 25hz sub - driver tips?
Hmm....
Ive modelled Eminence kappalite 3012LF in bassbox, and it gets pretty close if the simulations is correct. Ill take a look at that link though!
Brett said:
Hmm....
Ive modelled Eminence kappalite 3012LF in bassbox, and it gets pretty close if the simulations is correct. Ill take a look at that link though!
An externally hosted image should be here but it was not working when we last tested it.
I would look at either PrecisionDevices or RCF
Both have a few with low Fs around 27hz
And tune for 30hz
As I recal they have better Xmax than Eminence
Pro woofers with even more Xmax cost more
Why so loud anyway
Dont you want to keep you hearing for long
I can tell you that damaged hearing can be very painful
Besides, a building could easily be damaged as well
Such SPL are for outdoor use, or at least not small rooms
Both have a few with low Fs around 27hz
And tune for 30hz
As I recal they have better Xmax than Eminence
Pro woofers with even more Xmax cost more
Why so loud anyway
Dont you want to keep you hearing for long
I can tell you that damaged hearing can be very painful
Besides, a building could easily be damaged as well
Such SPL are for outdoor use, or at least not small rooms
JBL 2226H seems to handle my demands. At least according to my simulations.
I allready use a pair in my mains, but they are about to be switched to something smaller, so I might as well use one for sub duty The rising response needs to be equalized ofc. As well as a high pass filter at 26hz to protect the driver from overexcursion at frequenzies below fb.
I allready use a pair in my mains, but they are about to be switched to something smaller, so I might as well use one for sub duty
The rising response needs to be equalized ofc. As well as a high pass filter at 26hz to protect the driver from overexcursion at frequenzies below fb.An externally hosted image should be here but it was not working when we last tested it.
mteinum said:
Why is that? When fb is chosen, then vent size will be calculated accordingly. Whether or not I use one, two or three vents. Allthough the software should show 1, and not 0 even before I have manually specified it. Makes no difference for the simulations though.
An externally hosted image should be here but it was not working when we last tested it.
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