If both subs are connected to the same AV amp can you set it so one sub is on for certain modes (and the other is off) Unless you physically switch one off? Perhaps use a remote controlled power socket?
Klipsch Pro Cinema KPT-904 L/C/R, Pro Cinema KPT-1201-T2 for sides and Heresy II for backs.
SVS PB13-Ultra, PB12-Plus x2, and Velodyne SMS-1 Sub EQ
SC-55 elite and B&K 200.7 S2
JVC RS-45 Projector, and Seymour CS 125” 2.35 screen
Oppo BDP-103 9 ATS Acoustic panels
I have the sb2000 and some bigger PB subs also. I don't know if I would say the Sb is better at music than the PB subs. But my PB subs are also 2 or 4 x as much money. Imo ported subs can sound unnatural at the tuning frequency. But most of the svs subs are tuned down in the low 20s or lower. Most music never gets that low so that's something to keep in mind. I bought the Sb for the size. The room it was going in mattered.
I agree with this. I think ported can sound just as good for music as sealed. In a blind test most would not notice the difference, but visual bias, i.e. knowing that you are listening to a sealed sub that you believe to be superior for music, will make you believe that it is. That being said, Reference head made a good point. The benefit of a sealed sub, if one needs it only for music, is that they will sound just as good as a ported sub, are smaller, and typically also therefore cost less. So they do have their benefits, I just don't think it is an issue of sound quality. As was also pointed out, I think there is a difference in sound around port tune, but this is normally at leasy 20-30 Hz lower than most of the deepest music notes.
If I were buying a sub for the dedicated purpose of music only, especially in a room where asthetics mattered, sealed is likely a better option. But for me, if size is not a constraint, and dual purpose use is intended on a budget, ported is often a superior overall choice.