WPC ratings ,as well as , ratings in Loudspeakers
many Amplifiers may say 150wpc for example but at full 20 hz to 20 kHz , many start distorting way before, as well as suck at low impedance levels, many Highquality amplifiers like Hegel for instance play clearer and with more dynamics then many much higher advertised specs, the power supplies,transformers have a lot to do with it as well as output devises like Mosfets just for example.
with Loudspeakers many may have a so called efficient rating ,and say a 8 ohm rating ,but have crossovers and drivers that are very hard loads way down to even 3 ohms at certain frequencies , and there is no standards as to Bass specification standards ,it may say 35 hz for a book shelf loudspeaker,which should be a red flag it may hit That for a fraction of a second ,Not constant, but still stretch the rated specs ,
do your home work read as many reviews as possible , and listen to it if possible and a home audition period.
many Amplifiers may say 150wpc for example but at full 20 hz to 20 kHz , many start distorting way before, as well as suck at low impedance levels, many Highquality amplifiers like Hegel for instance play clearer and with more dynamics then many much higher advertised specs, the power supplies,transformers have a lot to do with it as well as output devises like Mosfets just for example.
with Loudspeakers many may have a so called efficient rating ,and say a 8 ohm rating ,but have crossovers and drivers that are very hard loads way down to even 3 ohms at certain frequencies , and there is no standards as to Bass specification standards ,it may say 35 hz for a book shelf loudspeaker,which should be a red flag it may hit That for a fraction of a second ,Not constant, but still stretch the rated specs ,
do your home work read as many reviews as possible , and listen to it if possible and a home audition period.