230 watts in >> 1.5 wpc out !
I'll bet it's clean, but don't expect bass slam with a peak of 4 watts per channel.
My N0rh SE-9 drove me crazy with it's "wup" bass. (only on certain material)
Although it did sound mighty sweet and did some soundstage tricks that the KT-90s don't do as well.
I wouldn't go low-power again, however.
I do like the use of toroids.
My next tube amp will have toroids....