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#488469 - 02/04/20 11:14 AM
Re: Busking with a keyboard
[Re: montunoman]
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Senior Member
Registered: 12/08/02
Posts: 15576
Loc: Forest Hill, MD USA
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The easiest and most efficient way to do this is to use a deep-cycle marine battery and a pure sine-wave DC/AC inverter, which can be purchased for under $150 online. Most other power systems are square wave, which tend to produce a fair amount of 60 hz hum. The marine battery will last about 7 years if kept charged with an inexpensive trickle charger and the battery will cost you about $150 on average. total outlay for a solid system will be about $300. That battery will be heavy, though, about 55 pounds. Gary 
_________________________
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.)
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#488561 - 02/05/20 02:08 PM
Re: Busking with a keyboard
[Re: montunoman]
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Senior Member
Registered: 12/08/02
Posts: 15576
Loc: Forest Hill, MD USA
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Paul, look at the specs - they only put out up to 1,000 mah, which would not power a keyboard for very long - a few minutes at most. Gary 
_________________________
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.)
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