Would it be better for music, yes, it will offer more performance. BUT keep in mind that you have to be pushing the Outlaw sub pretty hard to see a real difference there. The ULS-15 probably has twice the headroom of the Outlaw in the music range, which is like 40Hz+. The Outlaw is no slouch though. It may be the the room is boosting the low-end to sound boomy on the Outlaw sub. If you think there is too much low end, try sealing the ports. However, if the case is that you just want to rock harder than the Outlaw allows, then yes, the ULS-15 mk2 will kick your ass. You might think about getting the VTF-3 mk5 as well- that can always be converted to a sealed sub pretty easily.