Originally Posted by burnrubber
but the more i give it the closer i get to the max and the closer i get to that the quicker i wear it out and fry it. the rule of thumb is to supply a sub with atleast 70-80% of it rms the closer you get to its rms the better it will sound. I currently have one sub with 170rms amp
Where did you get that rule of thumb from?
The only way you are giving it max power is if you set the gain correctly and have it on MAX volume ALL THE TIME. Otherwise, it isnt even getting close to 150 watts.