Honest1 your post is testimony to how system dependent tube sound can be. I have been running NOS Mullard 4003's in my highly modded cj PV-12L line stage. The warmth of the Mullards was just the ticket for my system at the time. After a new interconnect from CD Player to preamp and a new cable from preamp to amp, plus a new power cord to my new version 2 PS Audio Power Plant Premier, the Mullard sound had too much warmth obscuring midrange detail. As one of the Mullards became noisy, I reached into my tube stash to pull out a pair of EH gold pin 12AU7's that I had hardly used. Because of the system refinements listed above, the EH tubes were just what my system needed. Their clarity and dynamic resolve with the smoothness of the system, have tunes sounding better than ever. The icing on the cake is that the EH tubes cost a fraction of the NOS Mullards!
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