Tonight I've been playing around with my gear. I seem to always use my Ampeg SVPII, into my QSC PLX 3102, which is great. But tonight I swapped back to my Aguilar pre and the difference has stunned me.
The sound seemed to be three dimensional, air, heft and projection.
This was going into a Tech Soundsystems 6x10".
I would urge anyone with a chance of buying the DB680 to do so.