I'm not saying the MA500's are bad, they aren't. They were very good for their price point, however so is your Adcom from what I remember.
If you bi-amp then I suspect you will see an improvement. You should also try bridging a pair of the MA500's and see how that works. I always wanted to, but couldn't afford a second pair of them while I owned them.
Check out the MA700's too... those were also very good and a bit more power than the 500s. I see them show up on here every now and then.
Let us know how you like the 500s!!
If you bi-amp then I suspect you will see an improvement. You should also try bridging a pair of the MA500's and see how that works. I always wanted to, but couldn't afford a second pair of them while I owned them.
Check out the MA700's too... those were also very good and a bit more power than the 500s. I see them show up on here every now and then.
Let us know how you like the 500s!!