Originally Posted by niterida
Since I can't source cheap JBLs or equivalents here in Oz would it work to run 9 drivers of lesser specs under my 3 seater ?
If so what sort of XMAX and MMS should I aim for to get a good result ?
On a side note did you know that Mr Thiele of Thiele-Small Parameter fame is also an Aussie <img src="https://www.avsforum.com/forum/images/AVSForum/smilies/tango_face_grin.png" border="0" alt="" title="Big Grin" class="inlineimg" />
Hey niterida. That's pretty cool about Mr. Thiele being from Australia! Just read a bit of history about him....quite a bio and background.
The baseline BOSS has 3 JBL's on a 4x8 foot platform. For an equivalent BOSS design using different drivers, a target of 6444 g*mm should be the goal.
The 6444 number is simply the JBL MMS of 179g times the 12mm Xmax equals 2148. Since there's 3 drivers, multiply that number times 3 drivers equals 6444.
So if you can fit 9 drivers, just divide the 6444 by 9 and that will be your goal for 1 alternate driver.....or 716 g*mm
So, if the alternate driver has an Xmax times MMS of 716 or better, it will deliver a great BOSS experience when using 9 of them.
If you narrow your search down to a few drivers, just let me know what those are. I'll model in WinISD to double check the frequency response and determine how much power each will need for your BOSS platform.
With 9 drivers, just make sure your platform is very rigid with that many holes cut into it. As always, for the BOSS platform to deliver a great experience, it needs to be very rigid so it moves as one piece and doesn't bend and take energy away from your butt 🙂