My receiver is an Onkyo TX-SR 805. For about the last 8 years, I've been using a 2.1 Logitech system as computer speakers. Loved em! But, blew them up last week. So, I plugged the computer sound card into the Onkyo. It has about 130 watts per channel. Using Sony BD player, I can't turn its volume over 60 (out of 100). Walls will crack, windows shake, wife..................................................never mind what she does! Here is the lame brained question: I assume the actual output from the PC is relatively small. So, I have to turn the Onkyo way up.......95-96-97.......still it isn't "earth shaking"! Am I missing something? Is there such a thing as an amp for this situation? Thanks in advance for your response.