Linlai E 6sn7 tubes

@ram18

Chill out, you’ve got 4 new tubes installed which require break-in. True NOS Ken Rads need 50-60 hours and you know about the Linlai’s. You’ve got the tubes in the best positions for now. You'll soon hear the extended bass from the KRs.

"Chill out, you’ve got 4 new tubes installed which require break-in. True NOS Ken Rads need 50-60 hours... ’

                                                              +1

     This is a verbatim quote, from a letter Brent Jessee sends, whenever one buys valves from him:

                   "CARE AND FEEDING OF NEW TUBES: BREAK-IN
     New tubes need a break-in period before they can fully exhibit their true sonic character when used in audio circuits.

     Preamp tubes especially benefit from a good break-in. This period may vary widely, but NOS vintage tubes usually need at least 48 hours of use, sometimes up to 100 hours.

     New current production tubes need 24-48 hours typically.

     Good break-in can be accomplished by either leaving your tube unit turned on in a no-signal condition for 2 days, or you can just enjoy the tubes for several hours each evening and they will be broken in after several weeks.

     New tubes, especially NOS vintage tubes, may sound a bit edgy at first, but after the break-in period will mellow out and sound wonderful."

@ram18 -

"Havent felt the bass depth or slam that is often associated with the KRs."

     Has your system, as it now is configured (talking about components, speakers and room) ever produced the kind of Bass depth and slam, that you are attempting to achieve (or: recapture), with your tube changes?

     If you've already discussed that, elsewhere in the thread: my apologies.

@lowrider57  and @rodman99999  tks for the reassurance. Yes I need to be patient to see through the break in.  Just that when I got the KRs I was expecting at least some change from the onset. Well I will run  the tubes further and see how it goes.

@rodman99999 No worries. Yes I have had pretty good bass depth and slam before  in my system especially in solid state.  Even with prior  tubes,  bass wise (not as good as solid state) but the tightness and depth was somewhat there; not as good as I wanted having been used to my solid state bass production, but pretty decent. Slam was allright too. So naturally, I can feel the difference.

Thursday evening, I put my original pair of Elite 6SN7 back in my preamp. The back up pair has well over 100 hours on them, and I wanted to see if they stack up to the pair that grabbed my attention.  The answer is yes. Both pair add magic to my system.  I’m not saying I will never purchase NOS tubes in the future, but I will probably be a little hesitant.  The Linlai’s just work well in my system.   Highs are detailed but not in my face, mids are addictive, and bass is full and tight. Everything I could ask for.