P K
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Below is my post from three years ago, when I stop tube rolling.
I am back at it again with great results.
This time I studied the Upscale Audio website:
Upscale offer only one 6V6GT and it is a step up from my Mazda, the Pope 6V6GT, I can confirm the comments of Upscale Audio, this is a special tube, it is exciting to listen to, records become new as more sound and instruments appear.
The same can be said for the Made In Hungry version of the Tungsram 12Au7. Again please visit Upscale Audio and read the comments.
I audio the Brimar 4003 from Upscale, but again the Tungsram was just a better tube.
I will be back in three to four years with more comments.
Peter
FROM ALMOST OUR YEARS AGO:
Smooth and Detailed, I now have a whole new amp (just as Steve D. talks about in describing the Mini Torii).
Brent Jessee convinced me to they a French tube! The Mazda 6V6GT (Grey Glass) for a cost of $99,00 for a matched pair (Brent offers a 30 day return policy).
The Mazda 6V6GT tubes sound great and I will be keeping them.
I should note that the Valve Art 350B tubes also sound great in my system (a tweeter only amp in my System) and the 350b's get you to within 80% to 85% of the sound of the Mazda 6v6’s (and I paid less than $40.00 for a matched pair). They will remain as my back up pair.
I am now listening to the Mazda tubes (after a 18 hour burn in) and the Mazda 6V6GT tubes now blow away the Valve Art 350bB tubes (the Valve Art 350B is a tube I selected after a lot of tube rolling (see my other posts).
The Mazda 6V6GT tubes are Organic, Smooth, Lfelike and provide the most Detail (with a very light touch, not harsh at all, but the amount of new detail is amazing).
Thanks Brent for the recommendation
From Brent Jessee's website:
6V6GT Mazda France made greyglass, military boxes, 1957 dated New Old Stock original box.
A very nice 6V6GT, not often found in the USA. Blackplate and greyglass, Mazda label all with 1957 date codes. These Mazda made tubes are similar to Pope, Amperex and other premium brands.
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