XenonMan: All of that functionality and much more is built into Yamaha's sound bars now. Their top of the line 5100 is 8 3/8"high x 3 1/2" deep. While it is a DSP with digital amps, it actually does much more including video upconversion. Its also not cheap at $2200. I assume it wholesales for $1100 to $1500.

I am actually looking for something somethat simpler that would hopefully be more HiFi. Thus my thoughts about pairing with the RR2150. This would give Outlaw a complete solution.

Gonk: I agree that a speaker only sound bar would work. The question is the price point. If money is no question, then a sound bar solution really doesn't make sense. Yamaha's product uses a total of 120w for all 5 of its channels. If the electronics are all outboard, then I would look for this to cost under $500. It could then be paired with the 1070 replacement (if there is one).
_________________________
Living Room 24x18 open 1/2 flight up to a raised dining room/hall 24x12
Outlaw 976 pre-pro running 5.1 system
Outlaw 750 for Artison Masterpiece LCR and 2 NHT SuperZeros rears
Velodyne Servo FX-1200
LG OLED65C8PUA via HDMI2 to/from 976 HDMI ARC
Roku Ultra
Samsung BD-D5500 BluRay
Amazon FireStick 4K to 976 Aux HDMI input for Amazon Music Ultra