The Taurus was EBS' first combo, a 240W 2x10 which preceded the 150W 1x12 Drome and the 350W 2x12 Gorm. It's a bit unique in two regards: It apparently contained an active crossover for connecting an external power amp/subwoofer, and it integrated chorus and sub-octave effects, in addition to the excellent compressor and EQ that all EBS amps have featured. I've never played one, but as it's the cousin to my Drome, I would guess it's got a solid, transparent, "hi fi" sound. If you want something tubey, look elsewhere, but EBS are superb amps for everything from metal to jazz. Dromes are going for about $500 used these days. Tauruses are older and heavier (the Drome is a *fantastic* combo for a one-handed carry), but have more features and power, so I'd say if you can get it for under $500, it's a good deal. What are they asking? Have you been able to put it through its paces?
One thing that's come up with the older EBS combos, including my Drome and the Taurus of some other TBer, is that after 5-10 years, the switching jacks (headphones, effects loops) need to be cleaned to keep them from causing scary audio cut-outs. Some folks have gotten amazing deals buying older EBSes that I think had gone intermittent like this, and the owners unloaded them cheap rather than figure out that it wasn't a major repair.
'berger XL-2 => EBS HD350 => EBS Neo212
Steinberger Club #0013, Pedulla Club #147, Pre-EB MM Club #44 , Epiphone #90, EBS #34