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RE: Replaced AD827 with LM4562NA) my results

In the I/V conversion stage, the stock Cayin CDT-17A uses (4) AD827. For filter/buffer (4)OPA604 for balanced xlr and (2) OPA604 for RCA.

I prefer to listen to listen to the RCA outputs, so this is what I have been modding(caps, wires etc).

First I replace (2) OPA604 with (2) OPA627 in buffer stage. The 627 has far more resolution and refinement IMO. But I still was unhappy with the sound.

Few days later, I replaced the AD827 with LM4562 in I/V stage. The LM is MUCH smoother/musical/transparent/refined. I hope that it stays this way because I like what I'm hearing. Gone is that etched high-speed sound of AD. If you are into speed, then the LM is not for you.

(I have (4) LME49710 on the way to me that I will compare to OPA627 and OPA604)



Edits: 09/15/07

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  • RE: Replaced AD827 with LM4562NA) my results - reb 07:35:19 09/15/07 (1)

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