Apple iPod touch Second Gen (8 GB, MB528LL/A) Digital Media Player "fix blown headphone jack" Questions

...plugged in all the way. My original set of headphones work but they got blown out somehow and i have then used about 4 sets of headphones and the voice is still low...Please tell me how to fix

...fix this problem myself? There is most likely some sort of debris inside of the headphone jack leading to that problem. The speakers sound like they are blown. Try holding the home button for 10 ...