Rosetree, I only got to hear the HK Nano once and it sounded pretty good, but didn't provide the clarity or coverage the Bose L1 provided so I stuck with the L1, then later went to a L1 Compact, and for larger jobs a pair of compacts.
Don Mason will be switching to the HK Lucas Nano soon, so he can probably provide you with more detailed information.
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)