This would be about your only bet for sound, you can hook 2 together to get 4000 watts. I've been eying them myself but not for a grow. The Honda's are good but a little louder and you can chain them together. Don't asphyxiate yourself.
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They have multiple models to cover small items, to home essentials to larger systems for whole home or whole business. It is even solar rechargeable and qualifies for some state and federal income tax credits.