In the beggining I thought music sounded better on the M60s without the sub. Now I've changed my mind a bit. After tuning the sub the way it should be, music sounds great with it.
I've done some experimenting and I prefer 90% of the music with the sub. Even more so with properly recorded material where the bass isn't boomy. I've listened to some rock music where the LFE output was so high and I've also listned to some raggae/hip hop where the bass is just right with the sub. Ironic.
For classical with low tones a sub is a great compliment. This is with a VTF-2
