I am talking about thunder in the movies or on tv that causes this popping sound. I will have to conclude that this speaker is popping because of too much power, going balls deep. Pretty sure, I noticed I had my amp turned to "LARGE" for center channel. I changed it to small and haven't hearn any popping so far.

The center channel is a Eposome brand. A friend gave it to me and said it was really high quality. I cant find the Ohm rating on it! The back just has connectors and thats it. Can you identify this speakers brand and independence? Here is a picture.







My Setup Includes...

- Yamaha HTR-5140 Receiver
- Cerwin Vega VS12 series floor speakers
- Eposome? Unknown Center speaker

The green circle is what I currently have my receiver switched to. The Cerwin Vegas are 4Ohm Each. Is this correct? What would happen if I put it on the other switch?

Thanks for helping me identify that speaker and answering all my questions.