Designing a phono stage part 1

Well, it's one possible approach. There are others. The RIAA EQ could be in a feedback loop. The RIAA EQ could be split and applied as two or three separate filters. Any of those filters could be active or passive. The gain blocks don't have to op-amps - they could be valves or discrete transistors. There are a lot more possibilities than this guy suggests.
 
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