Originally Posted by pfar54
Thanks everyone. I will update soon.
I have a suggestion for you to look into. It seems as though you are after a lot of mid bass slam and punch. Most deep bass focused subwoofers out there are just that....deep bass focused. They use high excursion, low efficiency drivers to produce very high levels of low bass. There is always a trade off, which is going to be less optimal mid and upper bass performance. Manufacturers strike different balances with their designs, some strive for equivalent low bass and mid/upper bass, some tilt towards the lower stuff, some tilt towards the upper bass. But the fact is, almost any sub designed to produce very strong output below 20 Hz is not going to be completely optimal for mid and upper bass, compared to the other extreme end of the spectrum which would be a very light weight, pro audio style driver.
I have experienced this first hand. I've had dual subs(high excursion low frequency drivers) that, on paper, had more mid and upper bass SPL capability than I could use. Removing one of the low frequency drivers and replacing it with an inexpensive, high sensitivity pro audio driver made a DRASTIC difference in mid and upper bass slam. HUGE difference. With music, the difference was incredible.
So here is the suggestion:https://www.avsforum.com/forum/155-d...gn-thread.html
A pair of these, added to your PB4000, will increase your low bass output capability almost as much as adding another PB4000, while quadrupling your mid and upper bass impact and output capability. Lots of guys running 2,4, even 8 18" subs who add a couple of these for a DRAMATIC improvement in mid bass slam.
I would take a hard look at this extremely inexpensive option, and if you aren't 100% thrilled with the low end, add another PB4000 someday. But I almost guarantee you will be blown away by the results two of these would get you for maybe $600 total.