@prof Again, if you read my original comment in the other forum, I was QUOTING from an ASR forum which is printed in italics As to the Benchmark L4 versus the CJ pre-amp, one of the comments was The LA4 certainly isn’t "lacking" anything. It’s just transparent. But I could say it does ’lack’ certain things in the sense of comparison to the CJ tube preamp. My following comments refer to my friends and my experience with Benchmark gear and Conrad Johnson gear in general, with my friends having experience with both companies amps and pre-amps and me with Benchmark DACs and many CJ amps and a few pre-amps. It is our experience that Benchmark products lack somewhat in body and warmth but CJ is dark and covered sounding. We were not specifying that we knew anything about the L4 other than what I read and extracted from an ASR forum. My audio equipment manufacturing friend has seen the insides of several Benchmark products and concurs that they use less than optimal audio quality parts which result in less satisfying audio results. I was shown the different parts taken out and replaced in both DACs that were modified.
The fact is you know nothing concerning the interior parts used in either CJ or Benchmark equipment and cannot comment on them until you do. Do you even know the difference between Ultralinear, Triode, Voltage Regulated (some Audio Research gear), Unity Coupled (early McIntosh), etc? I may not be an electrical engineer capable of building equipment but I understand basic circuitry. If you have a Benchmark product, open it up and look up the cost of the capacitors and regulators, then get back to me.