Without pregidous, buffers are usfull if there's an impedence mismatch.
It may appear your pre is outclassed by the rest of your system, you could beg or borrow other species of preamps perhaps Pass or even Moon which may give you synergy or ARC or Vac on the other side to find the forgiveness with resolution you seek.
Adding more components like a buffer is oportunity to introduce more colouration and distotion not to mention the added cost of another cable.
Shorest signal paths, quality parts well implemented . The devil is in the detail.
I'm sure there are other valid opinions, but I would prefer to weed out the offensive component than to upholster over it.
All The Best.
It may appear your pre is outclassed by the rest of your system, you could beg or borrow other species of preamps perhaps Pass or even Moon which may give you synergy or ARC or Vac on the other side to find the forgiveness with resolution you seek.
Adding more components like a buffer is oportunity to introduce more colouration and distotion not to mention the added cost of another cable.
Shorest signal paths, quality parts well implemented . The devil is in the detail.
I'm sure there are other valid opinions, but I would prefer to weed out the offensive component than to upholster over it.
All The Best.