@Serenade
I'm curious what amp and preamp you are using, maybe wire as well. I have the original E-1, and using the TAD M2500 amp and matching C2000 amp, music begins to sing around 30-32 on the volume control. I usually listen at 34-36 and that produces volume levels in the 50-70dB range. This is a very good volume level and I really don't feel the need to go louder, the system is really on song at this level.
I agree that the Sabrinas have to be pushed to come alive. Before I heard the TAD E-1, they were my first or second choice, but after my first audition of the E-1, I just could not unhear that. IMHO, the E-1s are on-another-planet better.