I used the outputs of my tube amps to drive the high level input of my active subs for quite a while without issue at all. The sub's amp is completely separate.
Tubes and Subwoofers
Are there any here that run tube integrateds/amps with subwoofers?
My setup, room, preferences incorporates a sub with sealed bookshelves to get that sense of space and bottom end.
My gear has preouts to connect the subwoofer, but am considering switching things up.
Does anyone use speaker level connections from their tube gear to a sub? Any downsides/concerns with impedance loads at the tube side with speaker level connections? Maybe it's gear specific?
TIA