Originally Posted by rolldog
I bought some new speakers a couple months ago, all Klipsch Reference Premier speakers for a 7.2.4 setup, and I've not been happy at all with my bass. The subs I'm currently using are Klipsch SW-112, which don't even sound as good as my old Mirage subwoofer with 2 10" drivers in an isobaric enclosure.
So, I started looking at subs, and I read a lot of good things about the PB-13 Ultra. I asked for some advice in another thread, and everyone had a different opinion and would recommend a different brand saying that I could get more for my money with a PSA or HSU, etc, but after spending another few days researching these other brands, I still decided to go with the PB-13 Ultra in piano black. Since every sub I looked at was quite large, I wanted to at least get something with a nice finish since it's obviously going to be difficult to hide.
I hope I made the right decision, and I hope the PB-13 Ultra will give me the deep rumbling bass you can not only hear but feel as well. One thing that sucks is that I'm also stuck with these 2 other subs. They're not horrible, they just don't produce the deep bass that I'm used to, which leads me into my question.
When I get my PB-13 Ultra, can I hook it up to one of my sub outs on my receiver and keep these other 2 hooked up to my other sub out with a Y splitter or should I only use the PB-13 Ultra? Even though I'm not really satisfied with these 2 subs, I don't have the original boxes they came in, which would make it difficult for me to sell, and even though I'm not happy with them, I think they would probably sound better with the PB-13 Ultra since the PB-13 will give me the lower bass and power I'm missing. These subs would probably help produce more bass, but it would probably be in the 40/50Hz to 100Hz range. Could I hook all of them up together or should I just rely on the PB-13 and get rid of these other 2?
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Outstanding! Out of a sense of fairness, I was one of the people advising you to look at other subs before deciding, but I'm glad that you went with the PB-13. Looks matter to me too, and I think that the Ultra in piano black, with the metal grille, is a winner. And I definitely do think it will give you the deep bass that you can both hear and feel.
That's the good news. The bad news is that you should probably just get rid of the Klipsch subs, original boxes or not. Perhaps you can find someone in your community who wants them (Craigslist, maybe) and avoid shipping. If not, there are places where you can get large boxes.
If you combine the weaker subs with your much
more powerful Ultra, you will either hold back the Ultra, or risk distorting/damaging the Klipsch subs, or both. Audyssey, for instance, will only set filters to the F3 point of the lesser sub, and then will EQ the subs as one, even with XT-32 and two sub inputs. So, if the Ultra has an in-room F3 of 10 or 11Hz, which is very possible with one port plugged, and the Klipsch subs have an in-room F3 of about 25Hz, then there will be a large gap of more than an octave where you have no EQ at all. And then when you try to crank up your subs, particularly with something like DEQ engaged, you will risk distorting the sound, or damaging the Klipsch subs, as they are unable to keep up. People do use lesser subs in conjunction with more powerful ones, but it takes some effort (with measurements and something like a miniDSP) to make it work well.
I would just enjoy the Ultra, and depending on how things work out, look forward to the time when I could add a second one.