Pearl 3 Burning Amp 2023

[bentconvert]

@bentconvert and all,

Dip # 8 and #6 did the job. #8 Took away nearly all of the whine, but there was still a very high-frequency whine (I mean very high). So I tried various combinations, and #6 took that away and did not affect the sound much...Of course, I read about number #8 for HOMC in the build docs, but did I remember ?noooo.....LOL! So many thanks to @bentconvert and @6L6 ..

The unit sounds significantly better than my older pre and I absolutely love the sound of the Hana! It's a whole new level of audio experience for me.

Glad you got it sorted out!

 

[6L6]

@bpr Your link requires permission to access…

 

[bpr]

I think I fixed that. Should be accessible now to anyone with the link. My apologies - try again.

 

[6L6]

Yes, Can hear it now, thank you.

That’s not the Pearl, it’s noise from something external, try moving the Pearl chassis away from other things (or vice-versa). Also try engaging the input zobel. (DIP switch #8)

Make sure you have electrical connection between all the chassis panels, that’s a very common way for noise to get into the circuit.

The ferrite will also quite likely help once you get it.