Should I trade-up from my Krell KAV 300?


My system is a Krell KAV 300, Meridian G08, and Thiel 2.3 speakers. My interconnects are Creative Cable (Music Direct used to sell them for $375). My speaker cables are Synergistic Research (about) $500. My room is small and I listen at relatively low levels, mostly classical piano, some symphonies.
Should I invest in a used Krell KAV 400 or instead invest in better interconnects or speaker cables?
Thanks for your help.
runfast
On paper, 400xi may look more attractive, I agree. But if you put them side by side - S-300i is much bigger, much heavier, the power transformer itself is bigger in size. I wouldn't be surprised if the S-300i turned out to be the one with greater current capabilities. Not to mention it is much more advanced in terms of features.
Thank you. What you say makes sense. I appreciate your pointing me in a better direction.
Never heard your amp so I can't help.
I'm curious how small your room is and how the Thiels work there?
Completely from memory, I believe the toroid in the 400xi is very slightly larger than the S300i (800va vs 750va or something like that.) I don't believe either should be used to drive current hungy speakers. I'm honestly surprised the OP has had luck with the old 300i and Thiels....
Hi Timrhu, my listening space is about 12 by 20 with the speakers on the long wall. The Thiel 2.3's work great - no problem. Good soundstage and good depth particulary since I upgraded to the Meridian G08.