They're great basses. I've got a five string Chaos Core and they're great for metal, punk, rock and well...almost anything really. Like a Stingray on steroids. I don't think I'd ever use any other basses now, I'm perfectly happy with the sound of my Traben basses. The Chaos bridge is a lot nicer looking that the ugly slab of metal bridges on the other model - oh and its true, the sound from these is huge. The Rockfield pre-amp to me sounds better than the Aguilar pre-amp for live work, although the Aguilar does sound nice when recorded.
Have a bump for a great bass.