Sorry, but I record concerts. Anyone who thinks microphones are accurate is smoking crack. Even Schoeps CMC-MK4 into a Sonosax preamp by someone who knows what they are doing in setting record levels and gain offer only an approximation of reality and that is recording uncompressed audio at 24-bit/48KHz.
There are simply far too many uncontrolled or unknown variables in a YouTube video of a speaker playing to make any value judgments beyond knowing that the box is making some sort of noise.
While entertaining, buying a speaker based on a YouTube video sound clip is like buying a mail order bride from Russia based on seeing her in a Zoom Meeting call.
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