How many watts??


If I have a 80 watt stereo amp and I normally listen at quarter volume and never play at levels higher than this. Do I really need 80 watts could I use a 15 watt amp at half volume?

My next question if I have speakers that my mfg states needs min 50 watts to really make them sound good with my current amp rated at 80 watts but played at qtr volume does that mean I am not really getting the best from these speakers. If I play at half volume this is too loud, do I need a bigger room. Sorry if I did not explain clearly enough.


ecpninja

Showing 1 response by ajcrocker1

Your volume control is most likely logarithmic so you cannot use that as an indicator.  Go to Home Depot, Lowe’s or Amazon.  Order a volt meter.  Set the meter to AC voltage and measure the voltage across the speaker terminals while playing.  This will tell you how many volts you are using.  Amps or current drive is volts divide by speaker nominal resistance.  Power is amps time volts.  Most modern music is fairly compressed so 6dBs or a gain of 2 and 9dB or a gain of 2.8 will do.  A gain of 10 is 20dB which is way more than you will need.