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In the Forum: Analog Playback
In the Thread: Optical Cartridge: ground breaking, snake oil, or what?
Post Subject: Can't get my head around thisPosted by rowuk on: 4/24/2021
We know that RIAA preemphasis is applied before the groove is cut. What is in the groove is NOT flat in response. Conventional playback regardless of MM/MC/MI needs to EQ that preemphasis out to get playback flat. The EQ has multiple corner frequencies and getting them "right" is critical.
The reason for the preemphasis was to be able to get bass in the smallest practical groove.
Now supposedly, we can playback without EQ. Where did the preemphasis "go"? How does an LDR accomplish a multi EQed signal? Want to bet that the LED dies before the stylus...Rerurn to Romy the Cat's Site