Audio Amplification advice IPOD Dock Line out

[Guest mitchjs]

hello all,

 

i need some advice, im not a "analog" guy, i did a ipod interface to Sony Car audio system which is all digital

i take the analog ipod dock line out, and it feeds a analog in on the sony XES p1, and inside turns into digitial and get processed

 

the design of their input, is a buffer amp, to a opamp (njm082) then to a AK5339 A-D-C

 

what is happening is the IPODs level is much lower then the CD (direct optical)

and i want to raise the level up, i dont want to mod the XES p1 , so i figured if i boost the line

level, id get more input, therefore more to the A-D-C

 

the imput impeadance is much higher then any headphones, > 10k

 

can i still use one of these "cmoy" opamp designes to feed this?

 

i would use something like the OPA2227

my design would not be battery powered, but 12vdc

so i need something to get my rails, i could use a DC/DC converter

get +/- 9 dc

 

any thoughts, can anyone point me to the right design...

thanks all

mitch