Has any owner of Conrad Johnson Premier 16LS used any NOS Tube in this preamp.What was your result with the sound quality.Do tubes like Seimens have a short tube life with Conrad Johnson products.Thank you for your Reply
I am using Siemen CCA very transparent and dynamic, I have heard the Telefunken CCA is very good too for midrange and high would like to try them myself.
I owned a CJ17LS and used a AudioPrism power cord and NOS Amperex tubes both of which made a huge improvement. I then upgraded to a CJ16 Series 2. The NOS tubes and power cord made very little improvement to the sound. My local CJ dealer heard the same thing as we did this one Sunday at his store. My recommendation would be to send your 16LS to CJ for the upgrade rather than spend $'s on NOS tubes and a good power cord.
I have the 16 Series-2 which came with the stock Sovetek tubes. When I changed over to Siemens, the change was not subtle. Much smoother highs, more pronounced bass but not mushier. I guess more organic sounding overall.
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