I bought my sc4 today and when i have the radio up, the bass is deep.(all stock) however, when i get into the back seat and listen closely, it only seems like the driver side speaker of the three acoss the back works. im just wonderin if the other two are blown, or disconnected, or what? b/c the thing is, there is not distortion, even at high levels, they dont do anything.
please help, and im sorry to be such a noob

 

That's not a question you can answer over a chat forum. You need to know if the amp is not working properly, or it is the speakers, or it is the head unit, etc.....

Proper diagnosis with a volt meter is needed. Find out if the speaker coil is reading ohms (unplug speaker). Find out by using a small speaker if the amp is putting signal out, etc.........