thanks jdsomoothie for the reply,
at the amplifier manuel saids:
Power/Channel (RMS, 2 channels driven into 4 Ohms) 45 Watts @ 1kHz
So for example if im connecting 2 speakers of 8 ohm for right channel, and my receiver sends a 1 khz tone i should have 45/2=22.5W for each speaker. I know that a song has many frequencies at different amplitudes but in this particular case if my speaker sensibility is 89DB/1W/1m, my calculus (as far as i think i´m right) is:
So, at logarithmic scale if im standing 1m straight o the speaker i with sound meter i should have:
13.5+89 = 102.5dB
Considering this calculus for only 1 right channel speaker i think its a really decent volume for a terrace right?
so why you state:
Although you will get some volume, as the mfr indicated, you won't be able to get a "good intensity audio level."
i think 102.5db it´s really good for backgroud music, that´s why i don´t understand why the tech support of the amplifier told me that. YOU NEED AT LEAST A 100W AMPLIFIER FOR THIS KIND OF APPLICATION.
thank you for advance for the help.