by Ty_Bower » Fri Dec 19, 2008 4:00 pm
The Poseidon board is an all triode front end, but the power tubes are shown in the manual as wired for ultralinear operation. You could still rewire the outputs for triode operation if you wanted, but that isn't explicitly spelled out in the manual.
"It's a different experience; the noise occlusion, crisp, clear sound, and defined powerful bass. Strong bass does not corrupt the higher frequencies, giving a very different overall feel of the sound, one that is, in my opinion, quite unique."