Originally Posted by Smitho22
Thanks mthomas, when i play music at higher than 35hz would you advise using my main speakers MA Plat200 or using/blocking the port/ports to make the PB13U sealed,
would this also give PB13U a similar performance to 1 or two SB13U's?
Or should i just turn the sub/subs off for music?
Originally Posted by AllenA07
I would leave the sub running either in the 20hz or 15hz tune. I would also leave them on during music, they'll definitely help whatever the situation. Ported subs can handle music just fine, and I think you will enjoy the extra output the ported Ultra provides. Again, generally speaking, there is no difference between ported and sealed subs for music.
Personally I run my subs with one port plugged. This gives me the lower port tune as well as the extra output you get from a ported sub. It has always seemed like the best compromise for my theater. This also is one of the real advantages of the ported Ultra, unless you're absolutely convinced that sealed is what you want, the variable tuning gives you a lot of flexibility.
Originally Posted by Smitho22
Never really had a decent sub, my preference is 70/30 movies, and after much reading SVS/various forums the SB13u is fantastic for music and not to shabby with movies either. Just assumed(rightly or wrongly) that the PB13U bunged might improve its performance similar to SB13U, sort of best of both worlds, ported and sealed in one box.
I am currently reading this thread, from about April onwards currently at 23911, it's quite a learning curve and time consuming. Leaning towards buying PB13U at the moment later in the week.
One of the nice things about this hobby is that we never stop learning something new. And I see that even with the real audio professionals on the forum. I would start with the PB13 in the 15Hz port tune mode (one port plugged). That is really where the PB13 was designed to excell, and that is where it will give you the most versatile and dynamic performance. And frankly, switching back and forth between ported and sealed, going from movies to music, would be a pain. I agree with Allen that you will get excellent performance for music with your sub(s) in ported mode.
As for whether you will prefer to run your sub with music, since you already have pretty competent main speakers, that is purely a matter of personal preference. Most people do prefer to bass manage their speakers all the time, and run their subs all the time. Other people switch back and forth sometimes, depending on what they are listening to. With speakers that go down to about 35Hz, I would probably experiment with both an 80Hz crossover and a 60Hz crossover.
Unless you are listening to a lot of bass-heavy synthesized music, the following rule-of-thumb applies mostly to 5.1 movies. But it's generally a good policy to set speaker crossovers about an octave higher than their F3 point, and definitely at least a half octave higher. So, if your speakers go down to about 30-35Hz in-room, it would be a good idea to set at least a 60Hz crossover to protect them during explosions and the like, and to make the subs do the really heavy lifting. (So, 2.0 or 1.5 times the frequency where the speaker is down by 3db.) At the same time, a 60Hz crossover can sometimes augment the mid-bass chest punch (~50Hz to 100Hz) a little better than an 80Hz crossover. So, you can just experiment to find out what works best for your individual speakers and room. I hope you don't mind that additional advice regarding crossovers.