Originally Posted by WiSounds
I will, once I settle on a design. That has been the plan all along. Find a driver and alignment that provides as much output from 20-80 and replicate like rabbits. I have tried FLH, Sealed, and Ported thus far. I'm getting the inclination that sealed my be it, a TH has always been in the back of my mind, but Ricci mentioning 4th order....
I have made the mistake of building alot of something trusting that it will do what it says, now I build one or 2 and find their limits to assess their value. The SoloX in the ported cabinet is the best performing single cabinet so far.
I wonder if the Sundown might be a good driver for tapped horn, considering the highish fs and extreme excursion. The problem with a 20 Hz FLH is that often you see excursion controlled only to about 25 Hz. It will handle itself better than a TH for sub 20 Hz content without a HPF, but if you compare a TH of the same size, you will likely see the TH controls excursion all the way down to 20 Hz. So if you are happy with that being near the limit of extension, then you put a HPF around 20 Hz and end up with more output, you might get in-room to about 15 Hz with some gain and you are using excursion more efficiently. The FLH will be limited by the loss of excursion control below 25 Hz, so for max SPL you will have to put your HPF around there. Another pest about FLH is that it's generally very difficult to monitor excursion because the driver is buried. With a TH you can test your setup and check the driver is protected.
If you really want to move some serious air, I'm thinking a tapped horn with dual opposed 18" subs like this. The format I used in my T20 works nicely and due to using light formply (cheap) and dual opposed mounting the thing doesn't vibrate and two people can lift it without issue. For my first use I managed to get it from workshop to cinema room on my own. Probably not so easy for a bigger version with 18" drivers. And if one isn't enough, then what about four?! I'm thinking of a name for this beast ...... how about ........ the LEVITATOR?