Which one will be louder ????

[low_bass_makker 0]

Fi BTL 15 inches VS RE XXX 15 inches

Here is a simulation in winisd...Which clear shows XXX will be louder...

Box specs...5 Cu.ft with a port of 48 sq in and 20 inch length.

[Aaron Clinton 2,372]

WinISD is nice as a tool to get a general idea, but does not represent real world. Result is heavily dependent on the install, and there is no way to know for certain until tested.

[emh9009 199]

x2, if you change the box, it may be the other way around. just have to pick one and test with different boxes to get max, output

[Duran 387]

Modeling it also suggests you seal the BTL. Which is NOT what it's designed for.

[Impious 1,476]

Modeling it also suggests you seal the BTL. Which is NOT what it's designed for.

With an EBP of 157, I don't know any program worth using that would suggest a sealed enclosure. If there is a program that suggests sealed w/ a Qts of .2 and an Fs of 34hz....stop using that program.

[Duran 387]

Modeling it also suggests you seal the BTL. Which is NOT what it's designed for.

With an EBP of 157, I don't know any program worth using that would suggest a sealed enclosure. If there is a program that suggests sealed w/ a Qts of .2 and an Fs of 34hz....stop using that program.

Nick Morgan told me, I don't know which program gave those results either.

[///M5 2,833]

Modeling it also suggests you seal the BTL. Which is NOT what it's designed for.

With an EBP of 157, I don't know any program worth using that would suggest a sealed enclosure. If there is a program that suggests sealed w/ a Qts of .2 and an Fs of 34hz....stop using that program.

Rofl, most definitely.

[low_bass_makker 0]

Not a single concrete answer just guesses !!!!!!!!

[Adrian_D 520]

The reason you only have guesses is that in such situations simulations will only take you so far. Also having them in the same box is not a good idea. Very different specs means very different enclosures.

Finding somebody who tested both is one thing you can do. Or listening to both.

Up to this point I managed to get a single btl 12 as efficient as an old xxx 18 (which reached the limit, couldn't find ways to increase the efficiency).