Originally Posted by datranz
pbc, how would you compare your 1 diy av15 sub to your 1 pb13 sub.
In my room, not that much different from an output perspective (remember, my room is quite small and doesn't need much woof). Definitely much more low end, getting response below 10hz due to the sealed alignment. But a single PB13 was more than enough from 20hz up, and likely from 15hz for that matter as I get tons of room gain down low. I believe the AV drivers and the RMX-5050 amp gives me more headroom and power well beyond 100hz which is important as I now have Paradigm Signature S2 bookshelves crossed at 150hz and I'm not sure the single PB13 could have done as well. I haven't tried to do enough back and forths from an SQ perspective, and honestly don't recall thinking at first "wow that sounds so much better".
Having said that, when I took my PB13 to another AVS'rs (sputter1) place to do some listening to it vs the VTF-15H and another ported subwoofer built by Funky Waves (BillyP's) using the AV12H driver (or was it 15"?), ignoring the output differences (the FW box was much smaller), I do recall thinking that I preferred the sound of the FW box to the VTF and PB13. Not sure if that was because I was used to/accustomed to the sound of the aluminium driver of the AV sub vs paper on the VTF and the glass/cone composite (whatever) driver of the PB13, personal bias, or, heck, how the AV interacted in that particular room vs the other subs (or all of the above). I just recall thinking "hmm .. that sub sounds really sweet" with some of the upper bass passages (mainly recall it with the Open Range gun shut scene).