SE 18 is an integrated amp, so not sure if it has pre-outs. Hmmm.... Let me see if I can find anything.
EDIT: After looking at the specs (can't find a pic of the back), there are no pre-outs listed. Maybe someone here who has one can illuminate.
The ACA 2B is a tube pre-amplifier. Maybe that would serve your needs better if you want a pre-amp?