di ba china amps are overrated in wattage?
Well I think almost all are china amps
- even your branded ones for sure!
The difference is that branded ones have to cut so much corners to compete in their niche.
The generic ones tend to over-rate their products, but some do survive abnormal use - since some of them are truly equipped (say for example Konzert 502A that has 4 transistor per channel against branded AVR - plus the power tranny). Abuse them in the speaker department is not a cause of worry for this amp!
Even if Jerix say is true, your branded AVR should not be destroyed at all because it has protective circuitry. If truly generic amps has no clipping protection, then you should be more afraid of busting your speakers while your amp is still alive & kicking (clip-wise)
So your beautiful sports car with much horsepower (very expensive) should not be used to climb a rocky mountain (karaoke abuse) unless you get a serious amplifier not just masquerading as powerful but has the guts for the job.
But branded AVR has the finesse in its right place (just like the sports car) than utility amp like konzert 502A. The konzert (I cease to use china amp - or else am talking of both branded and generic) do not care for the finesse since the singers wont have that anyway!
But don't get me wrong, Konzert 502A is a serious amp - and being electronic at that, it is has solid performance (sound quality wise) as your expensive branded AVR gear - just tweak their tone control.
So much for the debate ... good generic amp are dirt cheap, why risk your expensive "finesse" amp!
Got my 2nd 502A at 2k - no brainer in fact! It can swallow even below 4 ohms total speaker impedance with no complaint!