Originally Posted by: werdnarolyati know that R.M.S stands for root mean square but what does it actually tell you about the amp?

[font=trebuchet ms]That usually means continuous output power. Stereo sales-types used to be notorious for quoting inflated, meaningless things like 'music power' in order to make gear seem better than it really was. Even a spec for RMS output power is kinda meaningless unless it's accompanied by a value for distortion at that power level.[/font]