The DR is a great amp - but did you test it at *gig volume*? Because a DR has very low headroom compared to other Fender amps and an average Les Paul hits the preamp pretty hard, even with the volume at 3 or 4 - which is generally where they start to break up. Typically, for a clean jazz tone in anything but very , very small clubs a DR is not going to remain clean enough for you. If you play with a small combo - just bass and drums - in bar-type situations it might work for you, but you'd probably ned to upgrade the speaker to something that would hold up more. Also have the amp - even a new one - tweaked by a good amp tech, with different preamp tubes and fairly cold biased power tubes. Again, it might work just fine - but unless you tested one at gig volume - preferably in context with band - I kind of doubt it.