Recently acquired a CD100B which emits what sounds much like a gunshot when the amplifier powers on. Unnervingly loud and I'm guessing it can't be "normal". There's a slight "thump" as the amp powers off, however it pales in comparison to the god awful "crack" when it powers up.
Internal speakers only and the remote wiring, etc. appears to be at factory defaults although there is some evidence of it having been used at one time. There is some noticeable distortion in the right channel while playing and the overload indicator does flicker briefly on the right channel but only during the initial power on/firearm salute. I can't tell for sure whether the pop is occurring in both channels or only the right. Upon closer inspection of the amp I discovered mismatched 10A and 14A fuses in the right driver board which I replaced with the correct 8A ones. Somewhat to my surprise they have yet to blow, so whatever was once overloading the amp must no longer present. The large caps look to be okay visually.
In reading the posts here I'm compiling a list several known issues (cold solder joints, crossover issues, etc.) to check for on this unit, however I'm hoping these distinct symptoms passing through the right pair of knowledgeable eyes here might help to point me in a particular direction.
Thanks much!
Internal speakers only and the remote wiring, etc. appears to be at factory defaults although there is some evidence of it having been used at one time. There is some noticeable distortion in the right channel while playing and the overload indicator does flicker briefly on the right channel but only during the initial power on/firearm salute. I can't tell for sure whether the pop is occurring in both channels or only the right. Upon closer inspection of the amp I discovered mismatched 10A and 14A fuses in the right driver board which I replaced with the correct 8A ones. Somewhat to my surprise they have yet to blow, so whatever was once overloading the amp must no longer present. The large caps look to be okay visually.
In reading the posts here I'm compiling a list several known issues (cold solder joints, crossover issues, etc.) to check for on this unit, however I'm hoping these distinct symptoms passing through the right pair of knowledgeable eyes here might help to point me in a particular direction.
Thanks much!