There must be a few tube integrateds that will let you bypass the preamp and go directly to the power amp, but I know only one: the Audio Space AS-3i which I happen to own. Unlikely it will work without the driver tubes though.
But if you have no volume control on your phono stage, why would you want to run it directly into the amp? Are you planning to throw blankets over the speakers when it gets too loud?
But if you have no volume control on your phono stage, why would you want to run it directly into the amp? Are you planning to throw blankets over the speakers when it gets too loud?