I own an S90 and a Motif ES7. I'm not using a PLG150DX card. I'm considering buying and old rack version of FM synthesis. I'm thinking rack so that the FM synth will be much more portable in that I could gig with either my S90 or ES7 and still have the FM synth with me without having to swap out the PLG150DX card.
My choices so far ar the:
TG77
TX802
TX7 (I know it's more a desktop than a rack)

This is also my priority order thinking the TG77 would be my best choice since it also has a 16 poly AWM sound engine and I understand there are more than just one sine wave to work with in the FM engine. But I'm wondering if maybe the TX802 might have better effects or features that might make me want a TX802 over a TG77.

Does anybody have any advice about these FM rack modules or can anyone offer to through another rack FM synth in the mix?

Thanks in advance.
Bob
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