Lon
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"Love without guts is worthless!" Philip K. Dick
Posts: 28098
Munson Township, OH
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There is a bit of further seasoning happening and the sound is deepening. I've settled on a tube complement:
RCA 5Y3GT: The seller says this is from '43, it IS old and operating flawlessly. Manual says not to substitute another tube type and I haven't. RCA OA3: I've bounced back and forth with a bottle-shaped and a straight-shouldered and the latter works best with the buffer tube I have in now Raytheon 12AX7: I bought these from Mike B. and after a bit they've bloomed into dynamic and very neutral tubes. Quiet as all get out too. I have spent a lot of time matching them up with 12AU7 buffer tubes, which seems to be the "anchor," or "lynchpin" to the sound if I choose these Raytheon 12AX7s in the system. Telefunken 12AU7: I bought this years ago for use in my ZCD and didn't like it there but so far it seems to be the best fit for the other tubes in the complement. Others that are close are a Mullard and the Raytheon that Steve sent with the amp (which may still be the final contender, I have it going in my DEC685 to burn in some more). I have a lot of 12AU7s and will likely roll some more as the amp is more seasoned in.
I'm getting excellent sound now, detailed, dynamic and I'm just drawn in to the music as if by a magnet. Stereo and mono, imaging is clear as a bell and the music breathes. This phono preamp is a real monster.
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HR-1,ZBIT,ZROCK3,SEWE300B,Dynagrid Jr;Rega RP3+all GrooveTracer mods;PSAudio:PST+DSD DAC Mk II,NPC,PowerBases,AC-12 pwr cbls, Reference spkrcbls;Mapleshade SamsonV3;VeraFi Audio cpts VooDoo:Cremona+Amati interconnects;Stack EQ; headphones:Sennheiser HD800S,ZMF Ori
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