I finally got my hands on a Pro Display XDR and quickly came to the same conclusion — needed/wanted some low-profile Apple-esque external speakers that performed well enough but weren’t an eyesore.
After doing a TON of research, I settled on the Audioengine A2+ speakers. While they don’t satisfy the power brick component of OP’s original criteria (they do, in fact, require one), they meet all the other requirements I was looking for (and the power brick is easily concealed in my desk’s cord management system).
Hope this helps — found this thread early in my research, so figured I’d report back now that I settled on a solution. For less than $300US, it’s the best one I’ve found (so far).
- They are small but still sound decent (6x5x4 inches), and if you lay them on their side the fit perfectly flush on the left and right sides of the display’s stand laying on their side (and still fit when the display is in its lowest position).
- They are free of any branding, and come in a decent amount of colors (I chose black to match the Apple aesthetic).
- They have a bunch of different connection options (Bluetooth, wired via USB, wired via audio cable) easily bringing through systems sounds and media automatically, and allowing multiple other simultaneous connections (I have them wired to my MacBook Pro via headphone jack, and have my iPhone connected via Bluetooth).
Those are a great choice. IIRC they only use microUSB for the 'wired by USB' though. I have heard of people buying a USB-c to microUSB cable to connect them that way though.
For a similar size/price/performance you could also consider the Kanto Ora.