Quote:
Originally Posted by James Tanner - Bryston
Hi Cyril,
You may be correct but it would have to be a really huge output impedance on the preamp and I am sure that an experienced reviewer would or should be aware of these types of issues.
james
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You are absolutely correct. I checked the output impedance of the Dartzeel is 50ohms (BNC) and <100ohms (RCA) in single ended config. The input impedance for the 7B SST-2 is stated as 50Kohms in single ended configin your spec sheet (although JA measured it at 7.5Kohms). Either way, there is no issue here. The output impedance in the Dartzeel is 600ohms through balanced config but JA mentions that the balanced connection was not compatible with the 7B SST-2. So that was not used. As you say, these guys have been around the block and would have identified this up front and certainly JA addresses this possibility in his measured performance section and rules it out.