EL34s -- your picks for best?


I recently replaced my JJ El34's with a set of NOS Siemens. Amazing difference.

To summarize, the differences were clarity in the upper frequencies, also presentation of the upper frequencies, general clarity, mid-range smoothness, bass speed and punch, and many improvements in the soundstage. For example, the depth and width improvements were obvious from the moment I put the Siemens tubes in. Also, timbre and air improved. I guess my conclusion is that everything improved substantially.

I keep the JJ's for casual listening, like when I listen to cd's while doing housework. But when I want to really listen, I put the Siemens tubes in and spin a record.

My system: VPI Mark IV, Alphason HRS-100, Alpha Genesis 1000 (I am saving for having my Koetsu Black re-done), Micromega Stage 3 cd, Fisher 400c or Dynaco Pas-3x (modified), Dynaco ST70 (modified), 1960's Sherwood FM tuner, Kef 102 Reference speakers (I am saving for a pair of Quad ESL-63's), Kimber 4TC bi-wired speaker cables, various interconnects, including 0.5m Krell Silver from amp to pre-amp. The cartridge is wired directly to the pre-amp via Cardas tonearm wire -- I replaced the tonearm wire with it and made it long enough to connect directly to the pre-amp. It is shielded, of course.

I was surprised at how much better the NOS power tubes sounded over the current production ones. Granted, I know that JJ EL34's are cheapies; but this much of a difference?

I am interested in anyone's experiences with EL34's in their system. Either comparing NOS to current production tubes, or with comparing different brands of NOS, or current production tubes amongst each other.

I have been told by a fellow Audiogoner to try the Winged C EL34's because he considers them to be the best sounding current production ones. I trust his judgement; he has a lot of experience, and golden ears, but I would like to also hear about more experiences with EL34's.

I really was (pleasantly) surprised with the differences the Siemens NOS tubes made. I have posted about my observations in the past with the differences between some 12ax7's. I also found the differences startling!

Thanks!
bicycle_man

Showing 4 responses by rodman99999

Hi again Mr B- Siemens and Tele are two different companies, but their presentation is very similar. German manufacture seems to produce a more linear/less colored sound than most others, and some systems will seem too lean/cold with them. That could have something to do with your preference of mixing some warmth(the BBs and 10Ms) with the Siemens outputs you're using.
The Winged 'C'(Svetlana, St Petersberg plant) EL34s are the last I had in my modded ST-70. The performed well enough, that when I could no longer afford/find NOS Phillips ECG or GE output tubes(eight matched) for my current monoblocks, I went with a set of their(SED) 6550Cs. No disappointments what-so-ever! I've been a Siemens small signal tube lover for years. I'm using six of their early sixties CCa's in my CD player. Have you tried any early production(pre '69) Siemens ECC83's? If not- You're in for a treat!
Ah, yes- The Source! Then there are the tubes in the Fisher pre-amp. How old/what brand are those? Replacement there with NOS Amperex could transform your system. In fact- A newer phono stage, or upgrading the caps/resistors in your existing one(are you using the Fisher phono input?) could well be in order.
I've never tried Mundorfs. Lots of DynamiCaps, auriCAP and InfiniCAPs, always observing the outer foil to the lower impedence rule. I'm tempted to try the aura Ts as coupling caps in my Cary monoblocks. I've got a lot of silver cabling, anything but warm tubes and so much system transparency now that I'm afraid things will get too lean though(already borderline with some recordings). Most Teflons do have certain sound of their own too. Then again- there's suffering through the burn-in. Teflon dielectrics take SOOO long! I've been a fan of polypropylene and polystyrene/foil for a long time. Old dog/new tricks dynamic at work. I'm an even bigger fan of power supply modding. I've found some of my greatest accuracy and dynamic range enhancements via BlackGate, Sanyo OS-CON cap and FRED rectifier usage in my systems. Most don't acknowledge how IN your signal path the power supply really is.