True. How often have you seen a cheap set of computer speakers advertised at 200 watts peak music power (whatever that is) and it's powered by a 12 volt 1 amp wall wart?
"DC RMS to PEAK is ... " is I hope a typo. Should be "DC RMS".
I meant in DC or Direct current circuits. To find the RMS voltage to peak voltage those numbers are used. In AC or Alternating Current it is a little different.