The tests you are doing now with the op amps and PCM1702 I did more than 15 years ago. Together with friends, we tested over 20 op amps for IV stage and then we concluded that a tube is always better than an average op amp. I'm sorry that I don't have any more pictures from that era.
Along with AD811 and ADA4625, I forgot to add AD797.
And let me not forget, along with the op amp, the regulators, power supply ,decoupling.... also play and for each op amp they give a different sound impression.
Along with AD811 and ADA4625, I forgot to add AD797.
And let me not forget, along with the op amp, the regulators, power supply ,decoupling.... also play and for each op amp they give a different sound impression.
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