2nd line out on audigy 2 seems to be quieter than 1st line out

I have my main line out on the sound card connected to my 2.1 speakers and the line out 2 connected to my hi-fi. To get the same level of sound on my hi-fi as the 2.1 speakers, I have to turn the hi-fi up quite loud(on everything else, the hi-fi is fine so it is not that which is the prob).

Anyone know if there is a seperate volume control for this line out(I have it in stereo mode at the moment so both line outs in theory should be same volume).