I just had the opposite experience. As
@mtemur suggested on the thread discussing “smear”, I was shocked that the ION-001 reduced clarity!
I have been toggling the DS-001 on and off a couple of dozen times while playing back classical and jazz albums. There is an audible slight loss of clarity in the high frequencies — just a ”smidge” of edge lost (~1-2%) on the leading and trailing notes of a trumpet or a violin… It’s not a huge difference by any means; but once you hear it, you cannot ‘unhear‘ it.
For now, I will turn it on only when setting up the record (brushing, centering), then turning it off. I do not have a static problem in the house, even in winter. I have very good steam humidification throughout, so there is no static that I can see or feel.
(In case you are wondering, powering the ION is a linear power supply which is in turn powered by a Shunyata Denali v2. Ground is connected to a Shunyata Altaira Signal Hub. So there’s no issue with dirty power or grounding…)
EDIT: I just read
@TLi ’s post recommending that the green light be off. (“I like to keep the green LED light off because the green LED tends to dim the sound, ie the light will tune down the treble a little. “) My light is on, so perhaps that’s the issue. Unfortunately, it won’t be easy for me to reach the light adjustment dial without removing the TT platter, which is not something I want to do.
EDIT 2: Dimmed the light all the way (doesn’t seem to turn off fully). That was not it. Sound is noticeably better with the ION-001 OFF. Listening to Al Di Meola Friday Night in San Francisco (Impex, 45 rpm) and the difference is not huge, but obvious: each plug of the string is clearer and further extended in the high frequencies. Again, I don’t have a static problem, so it’s not a tradeoff between ’pops’ and this benefit.