After first run there was audible hum with noise from 10 clock position of volume knob. So I plug power adapter (two poles EU adapter) rotated 180deg . It is kind of alchemy, but it reduces hum a lot. Next I changed interconnects cable to XLO Pro 150. Previous cables (do not remember type - it does not matter) were electrostatic shielded, i.e. shielding soldiered only on source side. XLO PRO 150 have shielding soldiered on both sides. It helped too.
Result : noise is listenable from 12 clock position and IS volume related. Higher volume = higher noise. As I use volume knob at 11 clock position fixed (regulating volume with oppo 103) there is bit of noise - if you want to hear. If you have Yes - Close To The Edge or Pink Floyd DSOTM CD, noise FROM CD is higher from CD as from Vali. Compared with Graham Slee Novo , which is totally silent, noise from CD is bigger through Novo then noise from muted Vali.
Once music is playing it is no issue. I listened Shirley Horn or Roger Waters - Amused To Death. What is interesting, listening Vali (my very first tube component) does not force me to find the noise. And definitelly this is more analog sound I remember from my phono and playing LP. For example I have complete Led Zeppelin LP set and on CD too. I did not listen CDs more than 6 years as compared to original LP (mainly Presence album) was unlistenable from CD. Flat and without life. Now I will play my CD collection with pleasure.
Because Denons are 25 Ohms I was very nervous about hiss, but believe me no issue for me. Last time I heard detonation from 6-th track of Amused To Death (s-it - into - pants detonation, indeed) was from my 4 bridged NAD204 through Boston Acoustics VR30 + Mordaunt Short SUB. Vali did it too without distortion. Also played last track from XLO Test And Burn-in CD - this is track you should play very silent first as it is biggest challenge for any audio system. Vali passed this too.