If you want to go down the 'Merican route
(Note the dB levels in the "Noise Levels" section - testing with a sound level meter - 3:45 - 4:50)
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The folks on reddit suggest getting a demo of your candidate machines to aid the decision process.
"Have you gone to a William Sonoma or a Sur La Tab to sample and talk with them about the various options?"
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But that may be easier said than done in Little Rock, AR