I also have a JACKERY 500 power pack that will run my korg 1000 plus 2 bose compacts for well over 6 hours with no problem. Super unit and small.
MEL
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KORG PA1000, KORG PA900, 2 BOSE S1 PROS, 2 BOSE L1 COMPACTS, YAMAHA STAGEPAS 500, ROLAND VP7