Here is my experience so far....

Posted by full nine on March 9, 2006 at 22:16:30

In Reply to: Re: A quick question about pre-amp tubes....maybe a survey. posted by dean_martin on March 9, 2006 at 21:01:20:

....the stock Tube Box tubes are apparently Electro Harmonix that are relabeled "Pro-Ject" and I used those for the first couple of months. I was mightily impressed by the Tube Box as it made my previous solid state phono stage sound...well, solid state.

My local dealer carries Pearl cryo'd tubes so I decided to try a pair of Sovtek 12ax7lps. The Pearl tubes are burned in for 100 hours ( to eliminate potential "infant mortals"...thier words, not mine!) tested for noise and microphonics and then cryo'd. The Sovteks were immediately more transparent and lively, with leaner bass and actually a more "solid state" sound, but not in a bad way. Of course the differences were much more subtle than switching from SS to tubes or vice versa, but apparent nonetheless.

I recently installed an unlabeled pair of JJ Tesla ECC-83s which were identified by an "inmate" (thanks TubeMonger). These have been the best so far...sounding smoother all around and with better extension in both directions, especially the treble. Once again, these differences subtle.

Anywhoo...that's about her for my experience with tubes and tube gear, but I'm sure any future upgrades will involve glass enclosed vaccums!!

Chris

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Follow Ups Full Thread

Topic - A quick question about pre-amp tubes....maybe a survey. - full nine 19:41:32 03/09/06 (16)

Re: A quick question about pre-amp tubes....maybe a survey. - maxhifi 13:54:10 03/10/06 (0)

Re: A quick question about pre-amp tubes....maybe a survey. - ancient tones 07:31:53 03/10/06 (3)

thanks...maybe you can answer a quick question for me.... - full nine 10:09:09 03/10/06 (2)

Re: thanks...maybe you can answer a quick question for me.... - ancient tones 12:22:53 03/10/06 (1)

thanks.....nt - full nine 12:39:15 03/10/06 (0)

Re: A quick question about pre-amp tubes....maybe a survey. - astralpen 07:24:28 03/10/06 (0)

There is little doubt as to the best - Russ57 04:55:24 03/10/06 (0)

Re: A quick question about pre-amp tubes....maybe a survey. - vrogers3 21:04:45 03/09/06 (1)

that's great!! thanks for the detailed response! (nt) - full nine 22:19:28 03/09/06 (0)

Re: A quick question about pre-amp tubes....maybe a survey. - dean_martin 21:01:20 03/09/06 (4)

Re: A quick question about pre-amp tubes....maybe a survey. - Ken Perkins 09:53:05 03/10/06 (2)

Bellari and 7025 - dean_martin 14:19:30 03/13/06 (1)

Re: Bellari and 7025 - dean_martin 14:29:23 03/13/06 (0)

Here is my experience so far.... - full nine 22:16:30 03/09/06 (0)

Re: A quick question about pre-amp tubes....maybe a survey. - Jeff Day 19:51:42 03/09/06 (1)

thanks.....nt - full nine 20:42:46 03/09/06 (0)

Follow Ups

Here is my experience so far.... - full nine 22:16:30 03/09/06 (0)

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