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I know this has been discussed (many times) before, but my situation may bring some new specifics to light. I've tried a few combinations, but I'm not satisfied. My goals are: detailed, tonally accurate, 'magic' midrange, warm-to-neutral, ZERO brightness, zero fatigue.This is partnered with:
Jolida jd-100 cdp (EH tubes, but willing to change)
B&W 602s2 speakers (not for long, but that's another thread)Attempts and observations:
Chinese EL34's: lacking detail and midrange quality, slightly bright
SED KT88's: great speed and detail, still a little bright, weak midrange
SED EL34's: Best power tube I've tried yet. Good midrange good detail.EH 12ax7's and 12at7's: very good detail, tolerable midrange, but bright.
Mullard 12ax7's and 12at7's: amazing midrange, zero brightness, zero fatigue, but lacking in detail and speed.I'm currently using SED EL34's and Mullard 12ax7's and 12at7's. Midrange and tone are perfect, the is zero brightness, zero fatigue. However, this combo is too smooth. I'm looking to add detail and speed without adding brightness and fatigue.
I have to work with:
Chinese EL34's
SED EL34's (big 'S', not winged 'C')
SED KT88's
EH 12ax7's and 12at7's
Mullard 12ax7's and 12at7's
Budget: About $300I'm happy to replace any or all tubes, working with the stock I have. Any suggestions would be much appreciated.
Thanks.
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Topic - Jolida 302b tube rolling - twisty 14:56:53 08/28/04 (11)
- Re: Jolida 302b tube rolling - kbuzz 09:24:27 08/31/04 (0)
- Re: Jolida 302b tube rolling - danlaudionut 12:42:09 08/29/04 (2)
- I hope it's the speakers! - twisty 15:56:33 08/29/04 (1)
- Re: I hope it's the speakers! - danlaudionut 22:34:53 08/29/04 (0)
- Try mixing the signal tubes (Mullard with EH/both combos)... - DeKay 16:31:20 08/28/04 (5)
- Tried it. - twisty 18:17:02 08/28/04 (3)
- Describe the Mullards you are using. If they are the mid 80's... - DeKay 23:23:03 08/28/04 (2)
- Re: Describe the Mullards you are using. If they are the mid 80's... - twisty 23:51:56 08/28/04 (1)
- Those are probably nice 12ax7's (I use similar/like ones... - DeKay 09:29:49 08/29/04 (0)
- SED=Svetlana Electron Devices. Same tubes. nt - twisty 18:01:06 08/28/04 (0)
- Re: Jolida 302b tube rolling - Eclectic 15:33:42 08/28/04 (0)