Purifi Class D

On 2/8/2024 at 9:48 PM, watts said:

We would never judge sound quality on looks, of course, but which of these op amps look like they might sound better? 

 

The second one has more potential because the signal and the +V are not close to each other and therefore there is no inductive coupling between them. In most practical applications the first one may sound better because integrated opamps are usually built with tighter tolerances than individual resistors, capacitors etc. The only discrete opamps that actually beats the integrated ones seems to be the Weiss.

As for personal, subjective sonic preferences, I cannot conjecture which one a person I do now know could prefer, provided they can actually hear a difference.

On 6/19/2023 at 3:31 PM, Jud said:

 

As we used to say in law, this argument "proves too much." The inharmonics of percussion instruments and the inharmonic attacks of nearly every musical source including the human voice contain frequencies that are each multiples of 1Hz, but are not integer multiples of *each other*.

They do not even need to be multiples of 1Hz…