Upgrade from Quad 11L?


My current setup:

Music Hall cd25.2
Music Hall a25.2
Quad 11L
Onkyo T-9 tuner
Audioquest Alpha-Snake interconnects
No-name 12-gauge speaker wire

The 11Ls just replaced Paradigm Mini Mk3s. A big improvement: I love the Quad's detail, clarity, and pace. So much that I'm contemplating an upgrade to Quad 12Ls (if I can find the old version) or Quad 12L Actives (which I know I can get; the MH a25.2 would serve as a preamp).

My sense is that the system as it stands is well-balanced, and I'm actually very satisfied with what I hear. So I'm trying to decide whether this is an itch I should scratch. My suspicion is that I should stand pat and think about long-range upgrades rather than tinker now, but input would be helpful. I listen to all kinds of music, but Wilco and Radiohead are playing most often. Thanks.
afranta
I'm intrigued by the idea of adding a sub (there is a sub out on my MH a25.2). What would I need to consider?

Tubes are interesting, too, but maybe down the line ...

Thanks for the feedback!
Agree with Bob about working with the room, especially placement. Have to disagree about cables, at least until you have basic good quality throughout, and this does not need to coast an arm or a leg if you investigate my suggestions above.
Unfortunately, I'm limited in what I can do with the room. I don't have room for stands, so the speakers are on the same media console as the electronics (and tv). But it is a rigid metal stand, and, while it's not ideal, I don't think it's too bad at my normal listening levels.
Try putting a dot of Bluetack under each corner of your speakers where they sit on the stand to provide a bit of isolation from you electronics.
Have had a sub hooked up to 12Ls and found them easy to set up.
Have a MH25 cd player tubed by Dan Wright, great sound.
Missed the speaker cables issue. Would try:
Kimber 8tc
PNF Symphony
Audio Art 5s
Could add a substantial improvement in sound for a reasonable price. Match with Kimber Hero or PNF interconnects for more improvement.
Audio Advisor has great sound panels for under $100.
"Get better Sound" by Jim Smith should help work you through this, also.