Originally Posted by PonzLL
The difference between my new PC-2000 and my old BIC-F12 was night and day.
What kind of difference would I expect to see from the PC-2000 to the PC-4000?
Considering shipping the 2000 back and getting the big boy now instead as I’ve mentioned previously in here. Just wasn’t sure what kind of difference to expect. Surely it can’t be the same kind of difference but what do I know
I don't know whether I would call the difference between the two SVS subs night-and-day, but I do think that the difference would be extremely noticeable. First, the PC4000 would have more max output at every frequency. You might not notice that, however, unless you are already pushing your PC2000 fairly hard. Where I would really notice the difference is with movies with low-bass content, because the PC 4000 would produce much
more low-bass SPL than the PC2000 is capable of producing. At some frequencies, and really from about 50Hz down, the single PC4000 would be like having two PC2000's.
You can compare the max output characteristics of the two subwoofers on the two tables which follow. You can just use the PB13 in 15Hz port mode from the second table to compare to the PB2000 in the first one. (Use the right hand column in the PB2000 table.)
It takes a while to learn to associate specific frequency ranges with specific content, but most of us really appreciate having good SPL below about 35 or 40Hz for movies. From about 30Hz down, a 5db increase in SPL is perceived as a doubling in loudness. So, increases in SPL at those low-frequencies are especially significant and noticeable for movies. And, that's where I believe you would notice the greatest difference.
Good subwoofers are expensive, and we pay more for the increased SPL and low-frequency extension that we get from them. I can't tell exactly how much difference you will notice, but having had really powerful subwoofers, it would be hard for me to go back to those with less low-frequency output.
Considering your enthusiasm for your new subwoofer, and the fact that you are already thinking of adding another subwoofer, or moving up to a PC4000, I want to go back to what I told you on the last page. I advised you to work toward dual PC4000's, if you can afford to do so, and that advice is still the best advice I can give you. You are a bass enthusiast, and there is no point in fighting it.