I'll make one observation, in case no one else answers this thread. I have not heard either of the preamps in question. However, the PLD 2000 is a John Curl design, as is the JC-2. It therefore will most likely have most of the benefits of his design work, which include discrete Class A circuitry, short signal paths and careful attention to using good parts and a well-designed power supply. It was designed to a price point, so that some of the parts may not be of quite the same quality as in the current design (and some parts have gotten better in the past few years), but the basic engineering is sound and that should get you a long way to having a similar sound quality to the higher-priced new model. You likely will not get quite the resolution or refinement of the new model, and the work of John's other collaborators for the JC-2 (including the late Bob Crump) added a level of refinement that the PLD will not be able to match, but I would be surprised if it was a "total failure".
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