Many folks seem to believe it could/will happen
They do?
Many folks seem to believe it could/will happen
Yes, they seem to. Within this thread and in others I've read and participated in. It may actually be true, but I don't know why.,They do?
I must’ve missed where that was said.Yes, they seem to. Within this thread and in others I've read and participated in. It may actually be true, but I don't know why.,
Not much effort to do things right.
They could have checked to see if it was the Zoom by using another ADC that was available but chose not to for some strange reason.
I had also advised them to measure a control cartridge--any cartridge--which could have also helped here and would be useful at the end of the experiment to know if the distortion is related to the cartridge or test record.
2) I currently have about $15 in my checking account and my refrigerator is almost empty, therefore I can't just buy better equipment for the experiment, nor have I received any offers from people willing to loan me better equipment;
3) This experiment is being followed by dozens of people on three different forums (Vinyl Engine, Steve Hoffman, and here); we've received hundreds of suggestions for what we should or should not do, what equipment we should or should not use, etc.; we try to incorporate as many suggestions as we can; if we're unable to incorporate a particular suggestion, there is always a good reason why. That doesn't mean we don't care, or that we're not taking this seriously, or that we aren't trying really hard to do something that will benefit the community.
That's fine. I wouldn't want to borrow "thousands of dollars of kit" from someone I don't know, or even someone I do know. If, God forbid, something happened to it, I couldn't afford to replace it.Just not up for lending out thousands of dollars of kit to people I don't know who don't want to make the effort on experiment design.
Very thorough, great job.I've done the imaging of the DUT stylus at T24 (24hr), and as expected can see no wear.
One image I take, but rarely publish, is looking straight down at the tip. This is the same view that is used with the Shure method, but instead of lighting from the side, I use the 45-deg ringlight to illuminate what I call the "contact span", which is the distance across the tip at the lowest point of contact in the groove. I have added this view in projection with the front view.
I have also added a drawing of a typical record groove, with the RIAA max spec (0.25mil radius) for bottom radius. This will give you all an idea of how much space there is between the stylus tip and groove bottom, and as the stylus wears we can all observe the gradual but inevitable groove bottoming.
The stylus will be on its way to @BMRR today for second test point (T48) sequence.
View attachment 301211
I haven't had time to listen to actual music with the Pluto 2, and my original Pluto is currently at my friend's house for him to use while I'm using his Pluto 2.@BMRR does music subjectively sound different between the Pluto 1 and 2? I'd think -2dB and -10dB at 100Hz and 50Hz along with nearly +3dB around 11kHz would be rather apparent.
We have 5 recordings to compare:
1. T0 on DUT with Pluto 1
2. T24 on DUT with Pluto 1
3. T24 on DUT with Pluto 2
4. T0 on REF with Pluto 1
5. T0 on REF with Pluto 2
I'm most interested in comparing #1 vs #2 (to see if 24 hrs of wear has done anything), #2 vs #3 (to see if there are differences between preamps), and #1 vs #4 (to see if there are any differences between styli).