#11
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I'm still doin' pretty good with the stock EH 6922s in my Premier 17. I don't know if they've ever been replaced as I'm the second owner of this fine pre. I do want to get some GL 6922s in to try those out, or maybe some Ediswans.
The CT-5 hasn't been a problem, but I think I'm just now getting somewhere around the 1000 hr mark, and those 6H30/6N30s were specifically designed to be extremely durable, so no issues there.
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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. |
#12
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I have seen this in the ET3 as well as the ET5. In both cases putting in another tube (either JJ 6922 or even better Gold Lion 6922) took care of the problem. As a general rule, avoid EH 6922 that have the 2010 date on them. Tubes is the ET5 should last 3-5 year without a problem. |
#13
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Myles Astor, Senior Editor., Positive-Feedback.com, Goldmund Telos 300 amplifier, Goldmund Mimesis 37S Nextgen preamplifier, Doshi EVO phono and tape stages; Zellaton Plural EVO speakers; VPI Vanquish Turntable, VPI 12-inch Fat Boy gimbal arm and SAT LM-12 arm; Lyra Atlas SL Lambda, Fuuga mk.2, vdh Colibri Master Signature cartridges; Technics 1506/FM heads; Various cables including TA, MIT, Kubala-Sosna, Skogrand, Viero L3 Equilibrio speaker cables, Audience, SRA Craz 3 rack, Isobase and OHIO Class XL+2.1 platforms. |
#14
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#15
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I am sure EH had qality issues in other series tubes as well. Try a Gold Lion and you should have no problems for years to come. Although its the same company the quality control on the GL's is much better.
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#16
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I don't know if it's my bad luck with tubes, the ET-5 being somewhat tough on tubes or what.
In the last few days... the system has been moving to sounding "2D" vs that lush magical almost "3D" sound stage. bass seemed a bit anemic and overall just less pleasing. Just for the heck of it on a whim today, I popped the Ediswan 6922 back in. well right off the deep end was back..and I was back to "seeing the sound in 3D" So then I do my standard micro phonics tube test on the Ediswan. A simple light touch of the tube in question. In this case it causes a monstrous sound in both speakers. This tube has become one of the best microphones I've ever seen. I know some of this is normal with any tube...and some tubes I can slap pretty good with no micro phonics whatsoever. So, at this point, although the EAT 6922 is dead quiet and seems to "work", and the Ediswan works wonderfully, but is micro phonic as all get out. (oh and yea, this is of course a "Platinum" version of the Ediswan.) I'm keeping it in for now and ordering another. I'm not sure what I'll do with the EAT. My first EAT went way noisy, this one started off sounding wonderful, it still works, but sounds terrible. Happy Holidays to everyone!! |
#17
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Happy new year to everyone! Bob |
#18
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my GAT is since a few days equipped with EAT 6922 selected.....it is very probably the end of my adventures on NOS territory,they are absolutely magnificent in all the departments....more to come but but by far they are the best 6922 that I listened with my GAT, I tried Tesla, EH, GL, JJ, Mullard Holland.... remain to verify their reliability in the time
btw I have just had a failure on a new set of NOS Mullard in the 'ignition' and I have fear the worst for my amplifier....
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Philippe l LP12SE,urika phonostage,radikal power supply, dynavector XV-1s,conrad-johnson GAT and LP275M, Sonus Faber Elipsa,yter/naim/Linn cables, vibex, finite elemente |
#19
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Hoping the result is not "the worst," Philippe.
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Jim Bedroom: Aurender N150-->Bryston BDA-3-->EMIA Elmaformer Cu passive line stage-->conrad-johnson MF2500-->Paradigm Studio 20 v.5 Wireworld Eclipse IC and SC Shunyata Delta D6, Alpha XC, Delta NR v.2, Alpha USB; Altaira CG Hub Stillpoints Aperture II; Ultra SS; Ultra Mini GIK Monster; 242 Butcher Block Acoustics Maple Platforms |
#20
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While I've been tempted from time to time to tube-roll in my PR17, I've had such good luck reliability-and-longevity-wise with first the original-equipment Sovteks and more recently EH's that I've decided to leave well enough alone. While that means foregoing a possible bump in performance, I tend to sleep better at night.
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Jim Bedroom: Aurender N150-->Bryston BDA-3-->EMIA Elmaformer Cu passive line stage-->conrad-johnson MF2500-->Paradigm Studio 20 v.5 Wireworld Eclipse IC and SC Shunyata Delta D6, Alpha XC, Delta NR v.2, Alpha USB; Altaira CG Hub Stillpoints Aperture II; Ultra SS; Ultra Mini GIK Monster; 242 Butcher Block Acoustics Maple Platforms |
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