Aristaeus is really thick and syrupy in the bass. Sort of like the Leben, but much much better done since this bass behavior doesn't negatively affect the rest of the band - the mids and the treble. The WES has a similar quality in the bass, but not quite to that extent. Compared to the Aristaeus, the WES was kind of dead sounding and less open. Less interesting and less lively than Aristaeus. Aristraeus was probably the most black sounding amp there.
I'd give the nod to the Electra for better micro-detail, micro-dynamics, liveliness. and openness. However as equipped with the 6L6 tubes, the SR009 sounded too midrangy. The EL34 would have fared better with the SR009. I had a set of EL34s lying around, but the volume pot failed. The Electra experienced a severe tracking error between left and right channels during the meet.
