a Power vs Volume Question


Hell,

I just replaced my old 200w power amplifier with a new 300w amp. by my surprise, with all things left the same, including the volume setting, the output read by my spl meter was the same between the two amps. isn't the 300w amp supposed to be louder at the same volume setting?

please post your thoughts.
thank you
maab
I also read somewhere that you lose 3 dbs output going from a 8 ohm load to a 4 ohm load with the same wattage.
Does adding a powered sub to the mix free up the amp to play at louder volumes,ie: will the amp seem to play louder with the sub in line?
AOLmrd1241,

Yes of course - a tweeter never needs more than 50 watts....if you remove the ultra LF load from the amp then it will play cleaner louder...
Shadorne;

If the "gain-sensitivity" on the amp has not changed with the addition of a sub, how than, can the amp play louder at any given volume? I understand, all things being equal, that the bass impact will be enhanced with the powered sub in line but how does that increase the "gain-sensitivity", and hence, the output of the main stereo amp? Thanks...