AliExpress Preamplifier by Zero zone review Part 1

Intrigued by the AliExpress products I decided to buy a Preamplifier by Zerozone and here is a review on how it performs.
Correction I mention it uses 6sn1 tubes actually they are 6N11 an 12Au7
Tubes I used are Sovtek 6N1P and Tungsol 12Au7 both new issue
Better Nos tubes may improve the sound Quality.

I ordered some NOS Siemens E88cc suppose to be one of the best will see how they do and update with another video

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Preamplifier link
https://www.aliexpress.com/item/10050...
you can ask them for the Schematics but I think they only send them if you buy it not sure.

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