Looking for small active STEREO speakers I can throw in a carry on bag and travel with

Not going to lie, you’re probably best with a decent pair of headphones and small headphone dac/amp. No small active speakers will get you the same quality, full-range sound as a decent headphone setup. Headphones will also be smaller and lighter to carry around.

That said, I have a pair of Audioengine HD3 speakers ($350) on a computer at work that are surprisingly good for their size. Audioengine A2+ are a bit cheaper and well reviewed also. I wouldn’t bother worrying about roon ready or wireless on the speaker since you can just run them connected through the laptop. If your budget allows ($999 via accessories4less.com) Kef LSX are probably better, but they’re also a bit bigger and a bit heavier for your bag. Anything beyond that I wouldn’t want in a carry-on. 

If you have space to the front wall the Audience 1 + 1 is good (owned it). There is a Magnaoan desktop speaker that is also good and needs similar space up front.

The Audioengine A2+ is not that great but easy to move. I have this in the house but not plugged in anymore.

I doubt any small speaker will sound as good as the RAAL SR1a headphones. I have about 20K of gear to play these headphones, but you can also use the following $800 amp.

Schiit Audio: Audio Products Designed and Built in California

When I switch from my 2-channel to the RAAL late at night I do not feel as if it is a step down. Another compliment I can make is that they do not sound like headphones. I am not a fan of the sound of traditional headphones.

2 JBL Charge 4's play stereo with the free app.