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Your tubes aren;t broke, the differences in distortion are the whole reason why people like the better tubes.

Tarekith wrote:Your tubes aren;t broke, the differences in distortion are the whole reason why people like the better tubes.

yes but on the demo of the stoc tubes, Mine distorts at a much earlier stage, that's why I was wondering why they may be broke...

I see, hard to say, tubes od wear out over time, how old is your unit? Mine's only a few weeks old.

Tarekith wrote:I see, hard to say, tubes od wear out over time, how old is your unit? Mine's only a few weeks old.

that could be a valid point, as I've had mine for some 4 years soon, but the distortion was there when I got it too. I bought mine used, so that's why maybe, I remember e-mailing the seller telling him that the tubes distort, but he replied "that's what the tubes do man.." , so I've just kept the tubes all the way down, always. (ESX, not EMX btw)

will definately consider getting new tubes if the difference is audiable

The specific spot where the tubes distorts depends on many things.

1) The tubes themselves. How old are they, how hard have they been driven, and what type of tubes.
2) The amount of gain being applied to them and the signal. The amount of gain is controlled by the gain knob, AND by the calibration settings during the diagnostics mode.

As far as I can make out, the diagnostics mode calibration controls the range of voltages applied to the tubes between the lowest and highest setting on the control. I'm not 100% sure exactly how it works, but depending on the value that you calibrate at, the distortion seems to kick in a different places.

I found this on tubedepot...really expensive...wonder how the EMX could sound on this



http://www.tubedepot.com/nos-12ax7-telesp.html

That's crazy expensive!

I think that the difference in sound between these and the JJ's ECC83 S is not as big as the almost $140 in price...