You have a relative humidity of 25%?!?!
Way too dry.
40% to 50% should be a your target.
So Weird- No Stylus Contact Woofer Pumping with Hana ML and Elac PPA-2
I observed the weirdest thing I have ever seen in audio. With the cartridge positioned above the record, tone arm locked up and platter spinning, the woofers were pumping on my system. I googled every permutation of query I could think of but came back with no hits. That’s when I decided to video the problem- link below:
I could type out all the details but the video pretty much covers everything. I thought ya’ll might be interested in this.
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your statement: Wiring for the tonearm to the preamp was as follows:
is very very confusing. This tonearm is for custom mono cartridge? For stereo cartridges, 4 color coded pins (same four pins from arm) are: positive 1 negative 1 positive 2 negative 2 There is no ground pin for cartridge.
My experience is that ground loop hum/electro-magnetic noise has nothing to do with RCA or XLR plugs if ground wire was connected properly.
remember, Tesla proved a long long time ago that electro-magnetic energy could be transform from source (turn table/cartridge) to receiver (phono stage inputs) if no ground shelling to short the energy. |
@byang12 The pin 1 ground to tonearm is the only missing piece of the puzzle, however since the tonearm is already grounded to the phono preamp via the external ground wire, I felt that sending the tonearm ground down the left cable, the right cable and the external wire was not a great idea. My assumption at the time was that the tonearm ground lug was most likely connected at the same circuit point as the two pin 1 connections. We'll find out latter this week. Just to clarify one point, the TT is grounded to the preamp. The question being is it the correct point? |
@nrenter I will be addressing the static issue as well, later this week. |
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