Thanks for the kind words. Please make sure you read this part:
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And note also that I ACTUALLY RECOMMEND and like EVERY ONE of these amps
The JSoundLab is a better choice for the CD3000 than the CSP-2, on paper, and from the viewpoint on the sonics of each - but keep in mind I never tried that combination. The CSP-2 is optimized for higher-impedance headphones. It might be OK, even very good sounding, with the CD3000, but at 32 ohms it likely will not be ideal. The transformer coupled JSoundLab will be a better match electrically, and IMHO, would give the CD3000 some needed added warmth.