INFO/ADVICE NEEDED - 6SN7 EH Preamp Vacuum Tube vs stock - Douk Audio T8PRO 7-band EQ

[dreadknot]

i need upgrade an tuning advice for my new Douk Audio T8PRO 7-band EQ
an my pair of Fostex T50RP mk4 Series Headphones an so far so good , the headphones sound much better then before with the pc eq

but the bass is a bit wash an flat with the default eq tho the srills in the treble are gone an the volume output at default setting
is far better then the pc eq with the headphone amp in low gain mode so thats very good

so to my questions

1. are the 6SN7 EH Vacuum Tubes better then stock with tighter an more pronounced bass an worth getting ?
2. with my stated headphones with dan clark audio alpha pads what eq settings with the douk should i set ?

fyi my stax gear is

DROP + Grace Design Standard DAC Balanced
Douk Audio T8 PRO
schiit magnius
all with xlr cables minus the headphone cable that on the way , along with a better stax layout

 

[SIY]

are the 6SN7 EH Vacuum Tubes better then stock with tighter an more pronounced bass an worth getting ?

It's a very good tube but "tighter and more pronounced bass" is not a function of the tube brand.

I'm a bit confused- those tubes in the photo aren't 6SN7, they're more likely 12AU7/ECC82 (a less linear medium mu dual triode).

 

[dreadknot]

the tubes in the pic are the og ones , i just got into reading about tubs and reas an saw in youtube vids the the 6SN7 were a better tube an a good upgrade
an the "tighter and more pronounced bass" was how it was discribed in some review an vids

are the 6SN7 better an how better bass effect ?

 

[SIY]

saw in youtube vids

The worst possible source for accurate information.

the "tighter and more pronounced bass" was how it was discribed in some review an vids

Perfect example of the nonsense you'll find there.

are the 6SN7 better an how better bass effect ?

6SN7 are more linear than ECC82, but "bass effect," no, it's irrelevant. And they are totally different in how they have to be physically wired into the circuit- it isn't plug and play.