http://www.bkelec.com/Modules/bsbp500.htm
Excellent quality amps. Its only 500W rms but probably has more true power than many amps that claim 700W. Nice beefy power supply and a pretty reasonable price tag
Excellent quality amps. Its only 500W rms but probably has more true power than many amps that claim 700W. Nice beefy power supply and a pretty reasonable price tag
Sorry to jump in but i'm also building similair project:
Tony Gee Serious Sub
but i will use PDN.2151
What kind of active crossover do you guys recommend?
Maybe something from Elliott sound products?
Tony Gee Serious Sub
but i will use PDN.2151
What kind of active crossover do you guys recommend?
Maybe something from Elliott sound products?
tinitus said:It has been mentioned that TonyGee use a PD woofer with similar specs
To my limited knowledge about TonyGee I would say that what he consider a very nice bass, many would rate as no bass at all
Please, I dont say he is wrong though, its a matter of personal taste
Sure you got that right that is personal taste and preferences what counts. I think he have good theory and i like what he is done in practice to support it.
Will see, and hear
I agree here tinitus. IMO the main reason to use woofers like this is to achieve extreme SPLs and to be able to use massive amounts of power. After all, thats really what theyre designed for.
In the same sized box they dont achieve anything a smaller woofer couldnt
The only thing I can think of is that they will have a much smaller excursion for a given SPL, which in turn could lead to lower distortion
In the same sized box they dont achieve anything a smaller woofer couldnt
The only thing I can think of is that they will have a much smaller excursion for a given SPL, which in turn could lead to lower distortion
Thank you my friend
I may look like a negative fool, only making trouble, but thats certainly my intention, on the contrary
I myself have actually been very interested in these monster woofers from Precision Devices, and no doubt I would love to own a pair
But in all my calculations done over and over again, just to give it the slightest chance, I was never able to make it do anything that almost any other 18" pro woofer couldnt do, with appropriate specs, and at half the price
Sure, paper and reality is different, but specs doesnt lie either
Any design holds a set of compromises, and its important to find out excactly what they are, to be able to chose the best design fore the purpos
No doubt that such 21" will have exstreme impact in BR, and if thats all one wants, then ok, but fore quality home hifi subbas I believe there must be better options, somewhere
But again, 40hz at 99db surely must sound very impressive, and could be really fun, but its just not what I rate as home hifi subbas
Lately I have become very interested in tapped horns
But the big one, I hope to do in the future, holds an 18" integrated pro woofer in closed box with a bit of EQ...so no, Im no better
I may look like a negative fool, only making trouble, but thats certainly my intention, on the contrary
I myself have actually been very interested in these monster woofers from Precision Devices, and no doubt I would love to own a pair
But in all my calculations done over and over again, just to give it the slightest chance, I was never able to make it do anything that almost any other 18" pro woofer couldnt do, with appropriate specs, and at half the price
Sure, paper and reality is different, but specs doesnt lie either
Any design holds a set of compromises, and its important to find out excactly what they are, to be able to chose the best design fore the purpos
No doubt that such 21" will have exstreme impact in BR, and if thats all one wants, then ok, but fore quality home hifi subbas I believe there must be better options, somewhere
But again, 40hz at 99db surely must sound very impressive, and could be really fun, but its just not what I rate as home hifi subbas
Lately I have become very interested in tapped horns
But the big one, I hope to do in the future, holds an 18" integrated pro woofer in closed box with a bit of EQ...so no, Im no better
These woofers wond do 40Hz in @ 99dB 1W full stop. The 99dB rating is in the upper bass around80-100Hz. In at sealed box Q 0.7 they do 85dB @1W @ 40Hz and I think this illustrates the point perfectly
As you say in an appropriate BR they will do -3dB @ 40Hz (which isnt very low considering the size of the woofer) but this is a kind of EBS alignment and means high group delay which isnt great. It also means you need a 200L box rather than 50L you can use sealed.
So we're back in circles, its the big box that gives the efficiency not the driver size!
As you say in an appropriate BR they will do -3dB @ 40Hz (which isnt very low considering the size of the woofer) but this is a kind of EBS alignment and means high group delay which isnt great. It also means you need a 200L box rather than 50L you can use sealed.
So we're back in circles, its the big box that gives the efficiency not the driver size!
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