140g is fine.
You might want to try analog recording the SACD DSOTM, unless you can find an earlier CD master.
Recordings of each turntable both without any music playing (but with the motor running), and in a blank groove, are extremely useful.
Measure the tracking force of each cartridge with a scale accurate to 0.1g or so.
Noise rejection of cartridge - How well the stylus profile is able to track the groove in the presence of groove scratches/dust/etc.
I have an old pressing of Aja and the original US and 30th anniv pressings of DSOTM recorded with my 440ML, but alas I just broke the tip on my OC9, so I might be of marginal help with comparing against a higher end system. However, I do have a Stanton 500 at my disposal....
I'm not familiar with any of these turntables so i'm not sure what adjustment they may/may not have.
Using a test signal may be better than comparison with CD...
My main concern is how many plays I can get out of these before having to buy a new one at $40 to $50 a piece. I expect the Crosley to track around 6 grams and who knows how badly the anti-skate is preset.At what point should I expect record wear become problematic for objective sampling?
So, if you start out with the least challenging test and only go on the the next test if if a that test is passed you shouldn't have any problems with wear (I'm still using HFS75, which as the number suggests, was manufactured in 1975). I would be very surprised if any of the decks you're testing come anywhere near the +18dB test or the +16dB one. It'll be interesting to find out though.
Re the wow & flutter test track, I think you may need specialist equipment to produce a result
It looks like my other Dark Side disc is the 20th Anniversary edition. It fits this description exactly. I will recreate the sample tomorrow.On the test LP front, I've narrowed my choices to "The Ultimate Analogue Test LP" and the "Hi-Fi News Analogue Test LP" (HFN002). Both seem to have tests I don't want to miss.On Ultimate, missing on HFN:Wow & Flutter test. I consider this very valuable. I assume you can apply a formula to arrive at the WRMS value based on how often the sample deviates from 3150kHz.On HFN, missing on Ultimate:Three identical anti-skate test tracks at the beginning, middle and end of the albumFull frequency range sweep - 20Hz to 20kHz."Torture track:" 300Hz tone at +18dBTough choice. I'd appreciate some feedback. Heck, I may just get both!
Mistracking will do more damage than tracking weight per se.
Re the wow & flutter test track, I think you may need specialist equipment to produce a result.
Actually I wrote a demodulation app in LabVIEW that I've been raring to play around with. If Knowzy posts the FLACs I will try to post some numbers within some reasonable length of time (but I can't commit to a firm deadline).
Get Ultimate (Analogue Test LP).
Nobody's sure AFAIK how much damage occurs to a record (especially a test record) after a single play with a ceramic.
...you might want to run the test record on the Crosley last.
Even without WRMS or JIS figures, there's surely a good chart to come from this sample. Maybe a narrow-range frequency analysis where you can see the line straying from 3150Hz over time.I don't see anything like this in Audacity. Maybe Wave Repair can create such a graph?