Hi all, Newbie here so please bear with me! My Dad has this ancient Leak Stereo 30 Plus which has worked great up until a little while ago where it started to play one speaker much quieter than the other. Both can vary in volume on their own and both are still very quiet even at their maximum volume. I remember they never used to be like this. I have blasted music out pretty loud before with no problem on much lower volume settings. Does anyone know what the problem might be? Can i fix it myself with (I can solder)? Do you need me to post any pictures? Please help! Thanks so much! Jack