I just bought this sovereign but haven't received it yet. I assume it is a predecessor to the xs2? does anyone have a good working knowledge of this product? can you tell me if it is BBS TECHNOLOGY? I owned a XS2_A and loved it but I'm wondering if this unit is as good as the xs2? better or worse? if I already had it in my hands I would just look up the model number but it just shipped today and I won't have it until next Wednesday. by the way I gave $350 for it and I wonder if it was a good price? I sold my xs2 for $425 so I'm kind of going off of that. thank you