Lampizator Amber 3


I expect to receive my new Amber 3 next week. It is unbalanced and without volume control.  It will have USB, SPIDF and Toslink digital inputs. Lampizator does not seem to offer upgraded tubes as an option so I am wondering what tubes, new or NOS, selected over the stock tubes might improve sound quality. Is it better to focus on the ECC99 or the ECC82? I find ECC82 equivalent code to be 12AU7 and ECC99 to be 6N6P and E182CC.

I will use Wywires Platinum USB cable and Wywires Digital Juice II Silver series power cord.          

I would greatly appreciate any other guidance people may have. 

Thanks


oglefront
What are trying to improve about the sound since you have yet to hear it? In general my experience with Lampizator has been to let it burn in and settle, then form an opinion as to the sound. The easiest and most readily available valves to consider having on hand would be the 12au7’s.
I made an assumption based on an October 15, 2019 post by Audioman58 in which he discussed the Amber 3 and upgrades: "(Amber 3) Very analog sounding with excellent detail in some cases better then vinyl, and you can make it better still, good aftermarket fuse, good power cord, and upgrading the rectifier tube and the 12au7 tube, the ecc99 super tube is very good this makes it better still," ... "I sold my $6k psaudio flagshipdac to buy this dac much more 3D realism !!"  


You’ll love it the way it is. Then after some time get a couple of the tubes mentioned as replacements in for a try. In my Atlantic, even the rectifier tube can yield markedly improved presentation changes. But better heard once you are familiar with the unit.  
Does anyone know if the circuit in the Amber benefits from (or requires) the output tubes with matched dual triodes? I'm assuming it does since it uses two different dual triode tubes for left and right channels.