Sir/ madam good day,since we gathered all information from all of you there,i have a little question rgdg my stereo amplifier is in trouble rgdg VOLUME and i noticed that the 8 pin ic is not working part number AX358,i already change all posible electronic parts like capacitors,diodes,transistors,and some 2 ic but unfortunately its not working,i cannot make higher volume.since i suspect the ic ax358 was the defective parts although im not so sure but my problem is i cannot find ax358 ic in our area.so my question is,is there any subtitute,replacement or compatible with this kind of ic???pls let me know and what to do this things....thank you in advance for your BIG HELP!!!AND THANK YOU ADMIN,respectfully yours allan