Which mini-speaker annoys the neighbors most?

The Soundmatters foxL mini speaker. (Credit:Soundmatters) The mission is simple: gather three brands of popular mini-speakers and see which is powerful enough to annoy a grumpy building superintendent. The briefing: I reside in a quiet, courtyard complex in Studio City, Calif. On most Sundays, the residents gather around the pool for a casual barbecue. Such …