I had 4 Bose Compacts ... I connected all 4 and was not doing near the job that my 2 LD5s
I won't get into a pi$$ing contest, but I have to say this:
The extra wide dispersion of the Bose gear actually reduces it's effectiveness when using multiple units. I found that with a pair, if they were too close in proximity, led to cancellation, and a poorer sound then using just one, correctly placed.
Stereo "can be" a wonderful addition to some sounds (I love my vocal harmonies panned hard L/R), but speaker placement, and gain staging is crucial to get the best result. I think the Bose compact has been misunderstood by many, since it's debut. When used as suggested ... it performs beautifully. I can only imaging how much sound you actually LOOSE when using 4 units in the same space. Dropouts are a real concern, and the end result is crippling to your overall coverage.
With that said, I'm glad you're happy with your LD sound. I'm sure it has a lot to do with the sound dispersion, and I'm glad it's working better for you.