I am enjoying my analog system, but what can I do to improve?

Small ESLs work fine in a small room, so long as you don't expect deep and thunderous bass notes.  The M545 is medium size, as Sound Lab speakers go. And really, what does the amplifier have to do with it, except where one might say that a very powerful amplifier is not needed?  Yes, it may not be needed, but it is not THE problem.

Dear @chungjh : " I still don’t understand. Wouldn’t decreasing the gain on the Kitsune do the same degradation? "

Certainly you don’t understand the whole issue and why you are connecting the phono stage Kisune to your Allnic L7000 preamp .

Btw, normally and in general sense as lower gain we need to achieve the desired SPL ( volume ) in our system as lower degradation will be developed.

The sound degradation I talked about is generated/developed inside the L7000 preamp due that it’s a a designed preamp coupled through transformers and it’s inside those transformers where the cartridge signal coming from the Kisune " seen " incremented that signal degradation and that’s why I told you that a good " move " could be to change the L7000 for the Pass X22 or X12.

In the other side:  "" is there a way to quantify/measure the room deficiency? "" please let me know how you did it your room treatment . Only through your ears?

R.

As Lewm mentioned, the Quad 57’s are a small electrostatic speaker that might work but it doesn’t provide a lot of low end.
Also, those jokes about electrostatic speakers being for audiophile masochists…. I just had my amp tech over today to clean my output relays and found that my right Quad was arcing and making a popping noises. So back to my speaker tech to replace a panel or two.

Synergistic Research has a new and expensive record mat. Anybody used or heard one of these compared to a Herbies or Funk Firm?

@chungjh for all I know the system /room are working fine but as noted above not the usual space for a dipole. If you are happy with how its working I would stand by my first post. Controlled directivity,   and corner or rear wall boundary speakers would seem more suited if you want to think about a speaker change. I happen to be scheduled to test, and if that goes well represent, a new and very interesting speaker for rear wall boundary placement, and of course there are vintage horn speakers that fit these requirements too...

Move to good quality digital. You will get less noise and at least another 12 - 15 db of dynamic headroom 😉

You will also get punchier bass, more precise treble and crackle free mids.