Best return for the money, system upgrade suggestions please.

grm, I can't be sure but since you have Kimber interconnects you might want to try Kimber speaker cables first, unless you feel that you may not like your interconnects.
Besides, very long time ago I tried those Audioquests 4 and they were terrible.

How do you use the cambridge Dacmajic plus. Of your active components it seems to me that it is the weakest link. Does the Cambridge Azure CD player have digital inputs?

Hi and thank you for the response!
The Dacmajic plus is at the heart of my system and feeds my Krell from it's balanced outputs. I feel in terms of features and cost it is a great value and some say a giant killer. I run my CDP through it, my Wadia 171i through it, I stream TIDAL through it from my PC, and lastly having loaded the TIDAL app on my phone, I stream BT with the aptx interface. One more thing, since the unit also has SE outputs and balanced, I run the SE outputs directly to my headphone amp, sounds great. The only thing I feel missing is a remote that would let you select the features of the DAC. I agree this is the weakest link in my audio chain, but what can I get for around 2K with a similar feature set and much better SQ?? Thank you!
grm

I agree you should enjoy what you have, its a fine system.  Buy an Auralex Sub Dude for under the sub..... great accessory that's only $60 and makes a difference....