Hi Mtkhl567,
I do have an 808.2 (and used to have the EMM Labs) running directly into a DartZeel amp, driving Vandy 5A's. I'd like to try the PD, but I need something with a variable output (the Vandy's use a balanced line-level high-pass filter that plugs into the amp, so the DartZeel preamp -- which uses a 50 Ohm BNC connection -- won't really work for me).
Something tells me we deal with the same gentleman in the Pacific Northwest.
The Meridian 808 and 808.2 do look the same, but the inside of the case, the power supply, and the circuit-connection scheme have all been changed (or so I've been told), which is why the old units can't be upgraded.
I agree that changing a component can help you make a comparative evaluation, but not an absolute judgment, because of potential colorations elsewhere in the system. But that said, there are certain tell-tale distortions that, once removed, become somewhat obvious. The 808.2 simply sounds less digital to me than the EMM Labs -- less hard, more natural. I once heard the new DCS Puccini on Vandy 5A's and felt it sounded qualitatively a lot like the EMM Labs, but you can never be sure in someone else's system.