Connecting Sub to my preamp

Hello and Happy New Year!

Thank you for the many suggestions and advice regarding my Bookshelf speaker quest. I am currently evaluating two sets of speakers:

Kef 101 Reference Book Shelf
LSA Signature 50

I have found both to be pleasing in similar and also different ways. I have another system at home with Kef 104.2, McCormack DNA 0.5 and Manley Jumbo Shrimp pre. I find the Kef 101 to have a similar warm sound as my 104.2 setup and want to see if adding a sub to both the 101 and LSA 50 setup will make a defining difference for me. 

Question: Can and how should I best implement a sub into this system:
McCormack DNA 0.5 Amp
McCormack ALD 1 Preamp
The ALD 1 connections are pictured below.
 

I have three different Subs I can try:
Klipsch KSW10 - has speaker terminals
JBL CSS11 - no speaker terminals
Vintage MK V-1B - allows both speaker terminal or pre-in connection

Thank you for any advice and or suggestions.

Ray