ChemMan

Tube rolling with 12AT7 and 12AX7A on MA252 preamp

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6 minutes ago, Tune said:

IMHO the best solution is to try to "audition" as many options as possible - and to move on the lesser models ASAP for a very slight loss. That way YOU know in YOUR system.

That's pretty much my plan.  I've ear-marked 400 euro for tubes and have spent 150 so far.

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Posted (edited)
5 minutes ago, ChemMan said:

Any recommendations as far as suppliers go?

I can only  comment for the UK ...but Watford Valves take some beating.

Edited by Smokestack

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I finally got my replacement Tesla ECC 803s.  It's hard to say, but it feels like their is a bit more punch, rumble and liveliness with the NOS tubes.  I switched back and forth a couple time just to make sure the gain was the same. (there was a 1% difference on the MA252's volume meter between the two set of tubes)

Certainly not scientific testing and I'm sure it falls within the regions of expectation bias, but A/B is hard when you have to switch between tubes.

To sum up, it sounds a bit like swapping in a new DAC.

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On ‎23‎/‎05‎/‎2019 at 11:09, Smokestack said:

I can only  comment for the UK ...but Watford Valves take some beating.

I've also had some good valves from Langrex.

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