January 15, 200917 yr I am looking for some matched pair of 12au7, which I may want to put in my new source/cdp, but not sure which one to choose, so, I need your advice please. Any other options are welcome. First are Telefunkens Smooth Plate, but I am not sure what ever they are fake or not, looks real to me, but what you think Another pair are TUNG SOL's Black Glas
January 17, 200917 yr RCA Cleartops or Amperex Bugle Boys I am thinking of trying these two in my new Odyssey Candela preamp, and the Candela Heads think these two sound very good for the money.
January 17, 200917 yr You can read all about 12au7/ecc82 tubes on Audio Ayslum. I personally use: cbs 7318 cbs 5814a black plate square getter amperex 7316pq telefunken 12au7 smooth plate Biggie.
January 17, 200917 yr Mullard These look nice. 1 pair $130) 11.1/11.5 1984 and 11.6/11.7 1983 Tubeworld
January 19, 200917 yr Author I am more interested in Tung Sols Black glass, which are quite rare, like 6SU7 Brown based with Black glass as well. The last one I own and really like in my EAR, so I thought I am going to give it a shut to these 12AU7, but was wonder if anybody could say some more about them... Amperex, Telefunkens smooth/ribbed, Mullards all kind, Sylvania 5814a gold pins are all known and if I cant get cheap these Tung sols I may buy some Telefunkens Smooth plates one... THX
January 19, 200917 yr I am more interested in Tung Sols Black glass, which are quite rare, like 6SU7 Brown based with Black glass as well. The last one I own and really like in my EAR, so I thought I am going to give it a shut to these 12AU7, but was wonder if anybody could say some more about them... Amperex, Telefunkens smooth/ribbed, Mullards all kind, Sylvania 5814a gold pins are all known and if I cant get cheap these Tung sols I may buy some Telefunkens Smooth plates one... THX Looks like a nice shopping list!
January 21, 200917 yr Author Have got a good deal on ECC82 Mullards CV4003 tubes, so I took it, will be interesting to hear the differences, if any will appear...
January 22, 200917 yr Have got a good deal on ECC82 Mullards CV4003 tubes, so I took it, will be interesting to hear the differences, if any will appear... Those are the box plated yes? If so I would like to see what you think of them compared to the smooth telefunken.
February 4, 200917 yr Author Already tried & sold Mullards CV4003, they were nice, but not wat I am looking for. Wait for a new pair of TUNG SOL Black Glass, pic above, will update later...
February 10, 200917 yr Have got Tung Sols Black Glass, great tubes, recommended. What do they sound like compared the other tubes you mention above?
February 10, 200917 yr Author I can only compare to NATIONAL's 5814A (re-branded Sylvania 5814A) and Mullards CV4003, cos I never tried any Tele's in my new source... National's sounds quite nice, not to warm or analytical either, but miss authority, which means everything there, but on midclass level. They doesnt support or would I say their limitations are absorbing the quality, like when you are trying to say something from the text, but the text isnt full enough to express the last point... Mullards are very nice, but their lushness kills the detail and the velvety low end isnt the way I would like to walk, to round. They were great with some ROCK, but for critical listening, where every single thing are important, their veil is to obvious. Tung Sols are just right there in the gold middle, having great detail and extention without be to analytical or harsh, reproducing of bass with brilliant detail and tightness I was missing and soundstage which isnt artificial. All by all quite natural and very musical sound.
February 10, 200917 yr Smooth Plate Telefunken's will give you the nice bass of the Mullard but they have nice detailed highs and big sound stage, kinda 701ish but nothing harsh. I did install some Sylvania gold pin drivers to smooth out the Tele a bit and that is a real good pairing as apposed to the Tele and the Tungsols.
March 15, 200917 yr Author I bought them after all, TELES Smooth plated diamond bottom and glad I am. They offer the richness of TS, but with smooth, silky touch without hamper the whole at all, truly balanced tubes
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