Okay, hopefully someone can clearly explain this. I plan to run powered pa speakers (Yamaha DBR15) off a battery and inverter setup for use in remote locations (ie: no electricity, I don't want a generator running). I would like to calculate battery and inverter size and playing life. The pair of powered speakers I purchased are advertised as 1000W each and do put out some powerful sound. I understand that the RMS value is a fraction of that and that manufactures commonly over rate their products, however when I measure the current draw on the 115 volt supply, it is less than 1 amp. How is it possible this can be called 1000 watt output? Thanks - Doops.
No announcement yet.
power requirements vs rated output for powered pa speakers