Modwright vs odysessy Extreme

Can you please provide more info? Have you actually heard both amps?

The Modwright is definitely worth the extra expenditure. Have heard both numreous times.
The Odyessy is a very good amp, the Modwright is an excellent amp. Both a great bargains in their price ranges.

Ditto to what Magnumpi205 said! The Modwright is cleaner, clearer, more detail and nuance yet very smooth and easy on the ears.

Which Odyssey amp?

I recently had an extended session with the Modwright KWA150SE and Odyssey Khartago Extreme SE stereo. Preamps were the Modwright LS-100 and Odyssey Tempest.

Whatever the combination, I always preferred the Khartago - with the Tempest AND LS-100 preamps.

The Khartago had more slam and transparency, the KWA150SE was a bit more relaxed and veiled ... in comparison, that is.

I felt the Modwright preamp was bloody good, though, and excellent value. Both the Odysseys are cheaper.

Oh, the amps were used to drive Magnepan MG1.6 speakers.

Just my ears, mind you ...

In my experience three is only one way to find out. Listen to both units in your own system pick the winner and sell the loser with minimal or no loss. I do it all the time and it is the ONLY way to make the right call.