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Re: MSB Link DAC meets OPA2604

195.99.125.202

Hi there,

>Given the the OPA2604 is, if venerable, still rather highly
>thought of as an audio opamp,

Not by me, most certainly not.

>Any thoughts?

Yes. The OPA2604 may be better than the NE5532 (well, basically a wet piece of string is, so no points there), but in the general scheme of things it is unsuited for a "flat" Amplification stage. It operates well in an active RIAA EQ, where it operates basically as 50Hz lowpass, for anything more involved or with HF it is rather ill prepared.

>Do they need more time to burn it?

No, they are just not very goiod sounding Op-Amp's.

>There is certainly room for improvement here for the Link

Not as long as the PCM1716 (or similar) is used. It is a pretty poor sounding DAC Chip. The one thing it has going for it is that you don't really need an analogue Stage. A simple passive LC Filter and DC Blocking Cap sounds best to my ears (even though the sound is still pretty dire).

Later T


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