I’d like to know your opinion regarding PA for gigs with a loud rock and roll band. I’ve read the FAQ (thanks!) and all the posts I've found. stil, I l have some questions regarding my particular case.
Details:
I’m playing my Nord Electro 5D through a Fender Super Reverb amp( I’m actually a guitar player discovering enjoying playing keyboards). I like my Farfisas and Hammonds through a slightly overdriven tube amp.
Now, I’m playing more acoustic pianos (simple r&r stuff) and these sound terrible, flabby and lack of definition. For most of our gigs the PA is just for vocals, maybe a mic or two for drums, so I was thinking about a Roland amp but after reading the FAQ I'm looking a mono PA that could be use as a personal monitor inbigger gigs, so I don’t depend on the venue monitor mix only.
So, I'm looking for:
-A good reliable mono PA (not much van space) with enough power for small gigs with two guitar players and a loud drummer.
-Not too heavy or too big.
-Good sound and bass extension for hammond and rock pianos (so 12 better than 10”, isn’t it?)
-Two channels and thru connection for a DI box, etc
. -Budget: not too expensive bot too cheap

Questions: Which one of those or do you think another brand or model will suit me better?
Yamaha DBR12
QSC CP12
Alto TS 412
Other brand or model?
Now I’m losing my tube overdriven sound so should I get a Vent 2 or Mini Vent with or without Tall and Fat for the organs? The Nord emulation but I don't think is great alone.
Thanks in advance.