Fundamentally, it is an EL84-driven 20-watter. Without the preamp module, the front panel looks a little like a VHS player with no cassette in it.

The SYN-50 has space for two preamp modules, the SYN-20IR one. But the latter is Synergy’s first to be equipped with IRs. Fundamentally, it is an EL84-driven 20-watter. Without the preamp module, the ...