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Tubes & Valves Upgrades, Spares & General Comments |
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Thread Tools | Display Modes |
#11
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Thanks.
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George Main: Aurender W20SE music streamer, ARC REF 9SE DAC / CD, Linn LP 12, Koetsu Rosewood SignCartrige, ARC REF 3 Phono Stage, ARC REF 6SE Preamp, ARC 160s amp, Sonus Faber Amati Traditional Speakers,Transparent Ultra IC & SC Library:Aurender N100, Ayre QB9 2020 DAC, Woo WA5-LE amp upgraded tubes, Focal Utopia HP, Sennheiser 800s HP, LCD HP. |
#12
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Quote:
With respect to the 6550s, I would agree. It's not...um, my favorite power tube. Luckily, with C-J's blessing, I was able to substitute the specified 6550's in my LP-70S with Tung-Sol KT120s, which are not only a much better-sounding tube, but more durable as well.
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Lumin P1 streamer/DAC/preamp, Constellation Inspiration integrated TT: Michell Gyro SE MkII, SME V, Koetsu Urushi Vermilion, EAR324. Harbeth 30.2s, REL R-305, Shunyata Alpha V2 ICs, Alpha V2 SPs, Sigma XC, Sigma NRv2, Omega QR-s & Alpha NRv2 PCs, segmented Altaira SG stack w/ Alpha & Omega CGCs, Everest 8000 PD. Remote Server Room: Uptone EtherREGEN, AfterDark Master Clock & LPS, Alita, Battle Angel, (Akasa NUC Roon Core), iFi DC Purifiers (for SMPS used for Alita & router), Shunyata Gemini combo power distributor & Altaira-type CG GP-NR hub, Venom & Alpha CGCs, Shunyata NRv14 power cords for digital components. |
#13
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The 'rule of thumb' for power tubes (EL34, 6550, KT88, etc.) is 2000hr. Power tube life varies depending on the amp, as some are harder on the power tubes than others, being run at higher plate voltage, etc. I owned a pair of Cary monoblock SET amps that used a Russian military tube that would literally break (either the internals or the glass envelope would crack) after ~1000hr. At $150/per, they were expensive to keep running. And, we all hear what we hear. For me, in McIntosh MC275 & MC75s the 'Winged C' 6550 was a terrific sounding tube. Sad they shut down the plant that made all 'Winged C' tubes.
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Glenn... Canton Reference 9 Clearaudio SM Pro Focal Bathys JLA 10" Dominion Kuzma Stabi S w/MC & MM Magnepan 1,7i McIntosh MA8950 & MR88 Oppo 203 Roon Nucleus Rose Hifi RS150B Shunyata Gemini-4 Sony ST-A6B, TA-F6B, ST-J75 & PS-X75 Sorane SA1.2 & TA-1L Stillpoints LP1v2 WW Pt, Au & Ag Last edited by Formerly YB-2; 12-04-2020 at 09:25 AM. |
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