Hi Gadios. Nice amp. I have not heard this preamp myself and it does not use the tubes you are looking for, but Herb Reichart wrote a glowing review on the Rougue Audio RP-7. If you did not know, the XA25 has been Herbs reference amplifier for many years now.
https://www.stereophile.com/content/rogue-audio-rp-7-line-preamplifier
https://www.stereophile.com/content/rogue-audio-rp-7-line-preamplifier