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In Reply to: RE: Korg DS-DAC-10R posted by flood2 on January 15, 2017 at 18:03:34
After reading you explanation, I'm sure there will be a difference. I suppose it depends on individual preference like everything else in vinyl reproduction. I've heard digital equalization of vinyl and it sounded okay to me, but it sounded slightly different that what I'm used to. Therefore, when I record vinyl, I attempt to accurately reproduce the sound of my analog system, which includes the sound of its analog RIAA filter.
Thanks again for your explanation!
John Elison
Follow Ups:
I take your point and it is certainly a concern of mine too since there is precious little information about the filter design (not surprisingly!). Surprisingly though, I couldn't find any specification on input capacitance which is not terribly useful given that it is designed ONLY for MM cartridges and the input "impedance" shifts from 47k when configured for Line IN to 50k for phono. I have emailed Korg, but am not hopeful of getting that level of detail so will probably have to work it out for myself.
Where were you able to get the digital EQ? Was it the Apple specific vinyl recording software (with a name that escapes me now!). I think the differences you hear will likely be down to the design of the digital filter simulating the time constants required and the effect on group delay. Linear phase is achieved with a finite impulse response FIR filter which is a feed forward design. This is why you get pre-ringing which is commonly attributed to the "non-analogue" characteristic of digital.
Regards Anthony
"Beauty is Truth, Truth Beauty.." Keats
One of the people at Muzikmike's Ribfest had a digital phono stage. I don't know what brand it was but he was emphasizing to us that it applied RIAA equalization in the digital domain. I thought it sounded a bit different than most analog phono stages. It's been several years ago and I don't actually remember too much about it. I just recall my reaction at the time was that it sounded good but somewhat different.Best regards,
John Elison
Edits: 01/15/17
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