Need some Amp help - a little new to properly powering speakers


Hello. 

 I have some polk LSIM707s that I thorough enjoy.

However, at the moment I'm powering them using a Yamaha aventage 3070 receiver which at 150 watts at 8ohms sounds pretty darn good. 

However, since these are rated at 300 watts at 8 Ohms, I assume I will need some more power. I notice at lower volumes a lot of the imaging and clarity disappears. 

I am looking at buying a 300 watt emotiva Amplifier, or a 500 watt emotiva amplifier.

I'm assuming it would be better to purchase the 500 watt per channel emotiva so the speakers won't suck it dry or stress it. 

Am i wrong in this assumption? 
moskaudio

Showing 1 response by twoleftears

@moskaudio What one needs to understand from the get-go, is that the number of watts is only one part, one quite small part, of the story.  For starters, take a look at the current output rating (not all manufacturers publish) and the damping factor.  Generally speaking for both, the higher the better.  Then you get into the jungle of class A vs. AB vs. D, and solid state vs. tube.  So not even two amps with identical measurements on all those parameters will sound the same hooked up to the same set of speakers.