I cannot comment on the combo with Omega speakers, but I did use a Maggie console rescue for 10 years with some OB speakers I built. I'd love to have tried it with the Omega's I once borrowed, but at that time didn't have the amp.
Great sound. Stupendous for the $, even after investing in retubing with Jim McShane.
I really liked the SEP sound of that EL84 amp.
No explosions to speak of, other than my mind at times!