If you are hearing hum around the unit (NOT through headphones), that could be DC contamination in the AC lines, causing transformer hum with some components. It can vary with time of day, other appliances, etc. I have a PS Audio Humbuster that completely eliminates it. I think iFi has one too. These devices do nothing for ground loop or other issues that show up through the headphones, however.
The amp definitely gained in areas of bass extension, speed, and dynamics. It also improved in spaciousness, transparency, and detail over the stock configuration. When the amp was returned from the modifier it had acquired a very slight 60Hz hum not there before that I could not completely remove. It can only be heard during extremely quiet passages or no music at all, like a slight warmth, which did not bother me but just wanted to be completely forthcoming. I kept the stock ALPS volume control as it had good channel balance throughout the range in which I used it.
The amp definitely gained in areas of bass extension, speed, and dynamics. It also improved in spaciousness, transparency, and detail over the stock configuration. When the amp was returned from the modifier it had acquired a very slight 60Hz hum not there before that I could not completely remove. It can only be heard during extremely quiet passages or no music at all, like a slight warmth, which did not bother me but just wanted to be completely forthcoming. I kept the stock ALPS volume control as it had good channel balance throughout the range in which I used it.
The amp definitely gained in areas of bass extension, speed, and dynamics. It also improved in spaciousness, transparency, and detail over the stock configuration. When the amp was returned from the modifier it had acquired a very slight 60Hz hum not there before that I could not completely remove. It can only be heard during extremely quiet passages or no music at all, like a slight warmth, which did not bother me but just wanted to be completely forthcoming. I kept the stock ALPS volume control as it had good channel balance throughout the range in which I used it.
As a point of reference, I’ve had my Quicksilver for about a year and have never heard an audible hum from the amp or through the headphones. It’s been dead-silent since day 1 no matter what tubes I have in it.
Disclaimer, I’ve only used various 300ohm ZMF’s with my Quicksilver.
As a point of reference, I’ve had my Quicksilver for well over a year and have never heard an audible hum from the amp or through the headphones. It’s been dead-silent since day 1 no matter what tubes I have in it.
Disclaimer, I’ve only used various 300ohm ZMF’s with my Quicksilver.
As a point of reference, I’ve had my Quicksilver for about a year and have never heard an audible hum from the amp or through the headphones. It’s been dead-silent since day 1 no matter what tubes I have in it.
Disclaimer, I’ve only used various 300ohm ZMF’s with my Quicksilver.
I will say that with the output transformer coupled Woo WA6 and Woo WA6SE (both with tube rectification), I have no hum issues. Same thing with the output transformer less Woo WA2 (tube rectification) and Woo WA3 (ss rectification).
I will say that with the output transformer coupled Woo WA6 and Woo WA6SE (both with tube rectification), I have no hum issues. Same thing with the output transformer less Woo WA2 (tube rectification) and Woo WA3 (ss rectification).
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