Intrigued by the AliExpress products I decided to buy a Preamplifier by Zerozone and here is a review on how it performs. This is part 2 where I did some tube changes and more burn in time.
I used NOS CCA Siemens E88cc some vintage Mullards and Telefunken suppose to be one of the best will see how they do.

Please subscribe and click the notifications bell button to help the Chanel

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.

My diy reference speakers GS11
   • My Best DIY high end Speakers Part 2....  

My diy I2s Streamer
   • How to build your Own Amazing Dac Str...  

My latest ongoing project Dac and streamer Gabster D11
   • Part 1  Building the Gabster D11 Ultr...