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Vinyl Asylum Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ. |
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In Reply to: RE: Some test records comparisons posted by Thomas_A on July 11, 2017 at 05:50:57:
This is the response with the stock stylus, but with a reduced FFT size compared to the other one and you can see how flat the response is above 10kHz. However, it suggests nearly a 4dB difference between 1kHz and 10kHz. I am away from my workstation, so can't zoom in for the detail. Shure were obviously trying to achieve something like a "pink" response characteristic. I still prefer the V15TypeV balance although the story goes that it was criticised for sounding too much like CD so they modified the response (Audiophile Curve) to satisfy those who wanted a warmer sound. With the right material I think it is successful, but can sound a little ponderous and bass heavy with some recordings.
Although for my transcriptions I demand a cartridge with the flattest characteristic for the entire passband, for general listening I actually keep the default loading and accept the "flavour" that the manufacturer was aiming for. As you demonstrated, there is always a tradeoff with bandwidth vs uniformity and I like to think the manufacturer/designers knew what they were doing! These days, MM cartridges (and some MCs) appear to be specifically voiced and the manufacturers don't seem to pay so much attention to uniformity of the response. I have a V15TypeV with a SAS and the response is considerably flatter and very extended with a very subtle dip centred around 10.2kHz. This is nicely flattened out with a +1.5dB gain (Q=1.2) at 10.2kHz. I wasn't enamoured with the 12kHz "lump" that JICO introduced for the "audiophile curve" styli and think that the stock stylus was a better balance in comparison!
"To use the pink noise, I export the values from a FFT and then convert to "linear" by adding 3 dB per octave. Formula from 1000 Hz: dBcorrected=dBmeasured+3*ln(fmeasured/1000)/ln2"
Ah, that would have been rather tedious! I thought you were using a plugin! Personally I don't understand why they put Pink noise tests on the test discs in the first place. Most people would be using it to test frequency response uniformity of the cartridge itself and broadband channel separation, I would have thought, rather testing for subjective balance.
Regards Anthony
"Beauty is Truth, Truth Beauty.." Keats
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Follow Ups
- RE: Some test records comparisons - flood2 16:54:37 07/11/17 (0)
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