I have been tempted to go this route for a while now. There is even some backwards compatibility with the Randall and Egnator stuff.
"You can use old modules in the SYN1, SYN2, SYN30 and SYN-50 (basically all Synergy hardware).
You can use Synergy modules in old Randall gear but only one channel of the Synergy module will work (because Randall hardware was based on single channel modules). For those Synergy modules where channel 1 is different than channel 2, we provided a switch on the PCB allowing you to select which channel will engage when used in Randall gear.
You can use Synergy modules in old Egnater gear such as M4 and MOD50 and both channels will work.
Best performance of course will be Synergy modules with Synergy hardware. The new modules have the cathode biasing selection switch circuitry which is not present on any previous hardware units."