Next up, I compared a single BMR with a Jamo C103, a large-ish bookshelf speaker with a 7" woofer mated to a 1" soft dome tweeter in a shallow waveguide. Jamo has made some nice speakers over the years. I've read that they're popular in Europe and perhaps Asia, but I don't think they've ever been a well-known brand in the US & Canada. This model was made after Klipsch bought Jamo, and I think they've been "Klipschified" just a little, in that the high highs are a bit exaggerated and forward (but not annoyingly so, it's pretty subtle).
With their 7" woofer, the Jamos have pretty nice bass, comparable to the Ascends described above.
Compared to the BMR, the Jamos are about 2.5 dB louder, so I adjusted for that with my AVR settings. The Jamos are pretty darn good, but a little forward with mid treble and occasionally a little hot in the treble, sometimes a little forward and too much sizzle. Not harsh, not really bright, no resonances that I detect that make them sound piercing, just a little exaggerated detail.
The BMRs are more spacious, more depth and width to the sound, and all the detail is there without it being forward.
The BMR's bass is slightly better, a touch deeper and with a little more texture and finesse.
The main difference is the spaciousness in the mids and highs on the BMR versus a more constrained but more forward treble on the Jamos.