Literally "root mean square." A DC voltage that will produce the same heating effect (power output in Watts) as the AC voltage. For a sine wave, the RMS value is equal to 0.707 times the peak value of an AC voltage. Example: divide Peak-to-Peak by 2 (or in half) and multiple by 0.707 = RMS voltage.
If 75w.RMS is not the total power of the system but rather the individual outputs then that should be plenty for the HTS.
I came across a 5.1 Home Theater system mentioning 75 Watts RMS.. what is it supposed to mean in terms of speaker output.
Also could anyone let me know whats the minimum output required for a average Home Theater System