Hi James,

I found the following a good compromise in my situation.
I added 2 x SW1600 to front 5Ks and run in Direct Mode for 2 channel. The first was added and it wasn't until the second was acquired and the 5Ks were set to small that the real improvement was realised.

6Ks would without doubt be the best solution if they pass the partner test and you can find a good 96/24 pair. I personally do not like 7Ks (bass was boomy and slow) when I tried them and you might find the same results as you did with 5200s. However every room is different, and thank god so are listeners.

Room treatment could be an option but it cannot be turned on and off.

I have tried some experiments as others on the forum are currently doing but have not reached a conclusion.

Regards and good luck Hector

AV: Thorens TD160B, SME, ShureV15MK2, 500, 598, 861v4, DSP7200.1, DSP3300HC Samsung UE55, SkyHD.
DINING: MS600, AC200, DSP5200SEUG.
STUDY 504, Roon Nucleus + RevB, 808v6, 5200SE, Mac & PC (Touch Screen), Prime+PS Grado GS1000i
HORIZONTAL: M80, MS200, Red Rose Spirit + Sonus Faber Toys, iPad Mini
A capella to Zydeco