I had a life-changing situation happen to me this week.
I've been using DR Hi-Beams strings for 3 years on my 6-string Yamaha TRB6JP. Compared to the original strings and to D'Addario's which were the only other strings that were ever on that bass, I thought DR's had more output, definition and note-to-note balance compared. I decided to try them out because a guy I know in Tampa called Sean Malone raved so much about them. He said that compressed wounds are so much better than regular roundwounds.
I was fairly happy other than the fact that the higher strings had lower output than the lower strings (but most basses I've tried out had that problem, so I figured that's just the way basses are). Also, the B string wasn't as tight as I hoped it would be, but I assumed that's because I had a 34" neck and not a 35 like the newer TRB6's.
Then I saw some Alembic strings on sale at Mars, they were also compressed wounds so I thought, what the hell.
Now the volume is even between the strings. The top end might not be as bright as DR's when they're new (but after a few days of hard playing they lose that brightness anyway). However they were still very clear sounding. The low end on the other hand was much improved - much tighter.
But the ultimate surprise was how tight the B string sounded. I don't think it's just the fact that it is a bit thicker (.128 instead of the DR's .125) but the tonal quality is the same as the E string. On the DR I could hear a difference in the tone compared to all other strings.
DR's might be a bit more balanced sound-wise from string to string but that's about the only thing they have going on against the Alembic, and it's not by much. On every other aspect, the Alembic proved superior. Seriously, the improvement in tone has made me pick up the bass much more often when I'm around the house watching TV or just talking to my roomate.
I'll let you guys know if I still love them as much once they get old (the ultimate test, because I prefer the smooth sound and controlled feel of old strings).