highend64
Super Member
After a little more then a week of waiting for my HSU STF-2 sub to arrived, I was anxious to to test to sub after integration and was very satisfied until today. When I was ready for a listening session, I notice that the sub was not producing sound. The LED light was green but no sound so first thing I check to see if by accident the speaker lead wire disconnected and was connected. Next I check the driver and check out good. I started looking around circuit board and sure enough their is a couple of culprits around the PS caps.
And underneath the PS cap lead
![IMG_20221118_204551139[1].jpg IMG_20221118_204551139[1].jpg](https://audiokarma.org/forums/data/attachments/2591/2591868-68b0f034060300e8b4e819008d2531cc.jpg?hash=aLDwNAYDAO)
And underneath the PS cap lead
![IMG_20221118_204551139[1].jpg IMG_20221118_204551139[1].jpg](https://audiokarma.org/forums/data/attachments/2591/2591868-68b0f034060300e8b4e819008d2531cc.jpg?hash=aLDwNAYDAO)
![IMG_20221118_204551139[1].jpg IMG_20221118_204551139[1].jpg](https://audiokarma.org/forums/data/attachments/2592/2592044-52a695a7ffb5b3624c46818a9f8a3695.jpg?hash=UqaVp_-1s2)