I had a pair of Studio 100v2 with a Paradigm Servo 15 sub... I would only run the sub when listenning to movies... For 2 channel music, the 100s are very good as is... I would not add a sub if your goal is 2 channel music... Remember, subs are not easy to integrate properly in a system...
On the other hand, for HT, a sub is a "nice to have".
Luc
On the other hand, for HT, a sub is a "nice to have".
Luc