Levinson 23.5 can be found used for a touch over 2K. I can't imagine ever needing much more. Bi-amping or bridging with another Odyssey is also a good idea that's very cost-effective. The Dynaudios are fantastic speakers that deserve to be "fed" before thinking about swapping them out. Even if you did, the Odyssey would probably be the (forgive me) weakest link in your system. That's not to say that it isn't an excellent amplifier. It's just not quite up to the same level as your associated equipment.
Kindly,
Dan
Kindly,
Dan