The Trace Eliot Elf with a 2x8 or 1x10 cab and a Transit B pedal would be a nice setup for this. There are out on the used market at a pretty reasonable price these days
Thanks for the suggestion. That is getting into a bit more than I want to carry and the prices I've seen even used are higher than my original under $300 and the higher prices for what I'm looking at now. I have more about that below in my reply to Bill.
I believe Blackstar makes a bass version of the Fly. We’re talking MUCH smaller and lighter than 12” cube and 15 lbs. Smaller than the lunchbox you brought to grade school. I have no experience with the bass version, but the guitar version has amazed everyone who has tried it. It’s great for practice and sounds good enough and loud enough to do some busking or playing with acoustic instruments.
Bill, tgo
I've done some rethinking and decided I will probably need to up the amount I wish to spend and go up on weight a bit to find a combo with the sound I'm looking for. I've seen some 1x10 combos that come in under 15" cubed and are in the 20 - 25 lb range going for about $450. While I want light weight 5 - 10 pounds more isn't really a major issue since I have around 750 lbs of cargo capacity left in the travel trailer and about 2200 lbs of spare towing capacity in the truck. Physical size is more of my concern as the area where I plan to stow the amp when not in use is a 16" wide strip between the bed platform and trailer wall.
One other thing that came to mind as I was reevaluating what I was looking for was even though I haven't played out in ages and likely won't be I usually have full PA support. These smaller amps would let me setup to use them as a personal monitor and have the extension speaker for the drummer or the people across stage to use as a monitor. I'd let the PA do the heavy lifting rather than my back.
Currently the two that standout to me are the G-K MB110 and the Markbass CMD 101 Micro 60.
The G-K appeals to me a bit more because it has a 4 band tone control which will allow me to roll back the upper and boost the lower mids to scoop the sound better. It is also a little smaller and about 4 pounds lighter. It also has the ability to select pre or post for the DI. A drawback is you can only add powered extension speakers which I don't currently own so this becomes a potential added cost down the line.
The Markbass has a 3 band tone control with separate gain and master which might help with balancing the bass and something on the Aux in. There is a tweeter which I could live with or without. The Markbass also has the advantage of being able to add another passive speaker so with it I can use any one of my current speakers. They both sell for $449 but for the Labor Day holiday one of the larger online retailers has the Markbass for about $70 less. The ability to add another passive speaker and lower price has me leaning to Markbass.
Enough rambling I need to locate the granddaughter as she has gone quiet which usually means she is getting into trouble.