Turned on my sp404 and the volume for every pad is nearly inaudible. I checked the cable, and I'm having the same problem from the headphone jack. Also I checked the internal processing level and thats not the issue either. I tried battery power, plugging into the wall. Honestly I'm stumped.

any way you can put the sd card into the computer and check the samples there? Thats the only other thing i could suggest to see if its the samples and not the box. Would suck if it were the box.
Good luck with that.

I can hear the samples ever so slightly through my mixer and if i put an overdrive on a sample I can hear it better. So I know that the samples are there and all the functions on the 404 seem to be working properly, except the output is so weak. It seems like there is a component somewhere that could be fixed???

Wrong forum?

try increasing the output gain (func+pad12)

yea definetely wrong section

Woops, yea I guess this was the wrong section. Anyway, if anyone was wondering, I took the 404 to a pro and he said it had something to do with having jostled something out of place inside the output circuit. Shits lost on me, but I got it fixed on the cheap!