My personal interest in the honesty of audio amplifier power ratings surfaced in the early 1980's when my Carver M400i Cube - rated at 200wpc - went into thermal shutdown while driving my ADS-L810 speakers during a party with a house full of people and the high-ceiling living room full of dancers. Bob Carver may have designed a lot of interesting and innovative products in his long audio career, but his "Magnetic Field" amplifiers, which lacked a capable and robust power supply, were not among his best ideas. Magnetic Field amps rank right up there with his "Sonic Holography" crap.
Based on my 50+ years of being an "audio hobbyist" I would be very cautious about choosing an amplifier for difficult loads based on the manufacturers published specs. On the positive side, Classe (and probably other old high-end amp makers like Ayre, Audio Research, etc.) appear to still be using the "old standard" RMS power ratings. However, Hypex , and perhaps other current Class D amp makers, appear to be follow in the footsteps of many "power rating" scams that audio marketers used in the past.
Even though I am a retired expat living in Panama on my Social Security pension, I considered purchasing a Hypex NC122MP-based "75wpc@8Ω" amplifier. I looked at the below spec sheet and realized that 75w is the "max" power, and the "continuous power is only 25wpc - and at what impedance is not listed. Is it logical to assume that if the "max power" rating at 4Ω is 125WPC, and the "continuous power" rating is only 25wpc (20% of max), that the 8Ω "max power' rating of 75wpc would correlate to "continuous power" rating of only 15 watts at 8Ω? Also, distortion ratings are at 1/2 of the power ratings.
Although I have not thoroughly researched current amplifier advertising vs reality, I did look at the specs for Classe's class D 2-channel amp offering - the CA-D200 ($2,200 at the Music Room), and they clearly state that output is 200wpc RMS @8Ω. (And to add to the confusion, RMS power output from amplifiers is not the same as RMS voltage measurements .)
I would really like to see Amir compare a "traditional" manufacturer's 200WPC amplifier with a Hypex or IcePower amp to see how measurements would compare. However, I realize that nearby WA owners would have to loan the gear to Amir for such testing to be possible. In the meantime, I suggest that anyone considering an amplifier from a newer company - especially Class D - do their homework, and perhaps discuss the issues here.