You're confusing power with gain. It's possible to have an amp with a high power output that has a low gain, and doesn't get that loud in a particular set-up. You'd have extensive hearing damage if you put 2100 mW through them while on your head, as you'd get a output of about 145 dB." I'm running 2100mw and they can take it if your ears can lol.
Fiio K9 Pro is such a great match for them."
What a SILLY CLAIM!
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