Integrated Question

I currently have Totem Forest Signatures powered by ModWright KWH 225i. I have rolled a total of three different tubes (stock JJ, Holland, Seimans), and have found the bass to be less impactful than desired. It seems to be all there, just laid back? I am considering a change in integrated.

Looking at Pass INT-250, Luxman 509z, Accuphase E-4000, and Boulder 866. Any one with experience with the above combinations? Am I heading in the right direction?

non-treated room (unable to address at this time)

Ayon S10 II / ModWright KWH 225i / Totem Forest Sig / REL S510 pr / Shunyata D6 - Delta v2 pc’s / Morrow Elite sc-interconnects (auditioning Fractal F1 next week)

Thanks

Scott