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Practicality of reversing frequency response curve of phono cartridge / stylus

Burning question regarding phono cartridges and wondering how much this has been explored: 

How practical would it be to measure a phono cartridge's frequency response with a test record and then correct it with a digital signal processor to be ruler-flat, much like Genelec's GLM system does with a room? Does anyone offer a product that would do this? It seems that rather than spend thousands on a fancy cartridge, one could get by with an average cartridge and correct it with some rather simple processing (?)

My future plans are to use a CEDAR Cambridge processing system to archive the best examples I can find of early jazz music, and I'm forced by the nature of the records and the cartridges available to use a Shure V-15 VX with aftermarket 78-specific stylii, so I'm thinking it might be possible to correct for some of the imperfections of the cartridge if I have a baseline.

 

mke246

Showing 1 response by solypsa

solypsa's avatar
solypsa
462 posts
 

You could use DSP for your record curve ( which you need to adjust to a number of settings for old mono and 78 anyway ) and then tweak eq to suit yourself based on some test record recording passes. 

 

Get a good mic preamp that you can load at 47k -100k with say 30-50db gain into ADC into DAW with EQ and hit record :)

 

Seems like there could be better MM that could be fitted with a 78 stylus.

 

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