Glockenklang
I couldn't agree more with my friend Jim. If weight and size isn't the main consideration Glockenklang is TOP quality equipment and sounds incredible with the DB.
I am seeing the UL502 pop up quite a bit in this thread and while it is quality, I didn't find it to work well with the DB for me. I owned the head for about 4 years....
That all being said the AI Focus is a great quality head for DB and also fits the convenience criteria. I don't think your experience with the tonal quality of the combo carries to the Focus paired with a good cabinet. I think you are already aware of the short comings many feel the Focus has with Electric bass..
My experience was that EA heads were a good compromise but not great at either, I owned a IAMP 350 for a few years.....
I know you didn't want opinions but...If I was starting from scratch and had a budget and weight considerations in mind I'd probably be thinking Focus with 2 12" boxes or a 2x10 cabinet and a sansamp for EB gigs, especially if you think you might want to run a mic in the future.
If you don't care so much about weight and running a mic I'd go Glockenklang Soul or Heartrock, with Berg AE112s which make for a very nice pairing...