It also matters how revealing the associated equipment is. The only thing that I can say with certainty is that the sensitivity to tube rolling varies quite a lot depending upon the design of any given unit. Thanks in advanced.Ĭlick to expand.I have never heard your preamp. I'm interested on the forum members opinions. The same can be said on the third tube used as a "buffer tube" on the EAR 834 Phono preamp, NOS RCA, General Electric, NEC, Toshiba, Matsushita or Hitachi 12AU7 sound the same to my ears than new production Psvane, Gold Lion and a Shuguang 12AU7.Īm I right or are my ears fooling me? On a cathode follower configuration "buffer tubes" is the quality of the tubes used as important as when a tube is used for amplification? On the Yaqin SD-CD3 tube buffer a new production (and a bit expensive, 120 € a pair) 6SN7 Psvane sounds exactely the same as an inexpensive NOS and in their original boxes pair of early 1960's Tung-Sol 6SN7 GTB or a Philips JAN 6SN7 GTA.
#6sn7 cathode follower full
an inexpensive Shuguang or new production Electro Harmonix tube? As I understand, a tube used on a cathode follower configuration is not using the full tube, is it? Then, I have an EAR 934 Phono preamp "clone" which uses three tubes, two 12AX7's for amping and do RIAA de-equalization, and a third 12AX7 tube used as a "buffer tube" that can also be changed for a 12AU7 (not suggested by the designer of this preamp but I like its sound more with a 12AU7), and does the same as explained before, assist the signal coming from the two previous tubes to keep impedance low and have some current to spare so its easier on the preamp or integrated amp is connected to.īut now my question is, if a tube is used on a cathode follower configuration, as long as the tube conforms to specs, does a good and expensive NOS tube really makes a difference Vs. As long as I hear, it doesn't introduce any audible noise. Sound is more full bodied, bass is fatter but not "inflated", mids and highs sound smoother and less agressive and it also seems to get a wider soundstage. I'm using this on an ancient Oppo BDP-93 multiformat player, and it makes a great difference on the 93's sound with or without it. Last year I got a Yaqin SD-CD3 tube buffer which uses two 6SN7 tubes and does the same as the more compact and most modern looking X-10D, it keeps output impedance low and has current to spare so its easy for the preamp or integrated amp to get the most out of the source the SD-CD3 is connected. I sold it back in 2004, howmany times I've regreted doing it. I first used a Musical Fidelity X-10D which is a tube buffer, it basically has a high impedance input and outputs a signal with a low impedance with plenty of current to spare so it's easier on the preamp or integrated preamp the source with the MS X-10D in the middle is connected to. I have used over the years used several devices which used "buffer tubes" on a cathode follower configuration.
0 kommentar(er)
