I just finished building a Nutube B1 and a ICE Power 500ASP + 500A module. I noticed an increasing high pitched noise coming from the 500ASP though, the 500A seems fine and Im not sure what can it be. Im using star ground at power supply and connections seems as 500ASP user manual
Any tips on where to start debugging?
An externally hosted image should be here but it was not working when we last tested it.
Any tips on where to start debugging?
Have you looked into the ringing or harmonics that can happen with the Nu Tube? Mine is isolated fairly well but it sometimes rings when the input selector switch is moved. Check out the Nu tube build thread for solutions.
Each time I heard ringing from the tube it was on both speakers. A light tap made it ring more. You seem to have a different problem. Are both preamp and amp new builds?
If so troubleshooting to figure out which is making the noise will get you started towards a solution.
If so troubleshooting to figure out which is making the noise will get you started towards a solution.