I do not think you can go wrone with Acoustic Zen Satori speaker cable. I use it with Maggie 3.6's and it works very well. You may want to use SS with those Maggeies one day (I recommend high powered SS amps with all Maggies); however, the 1.6's are easier to drive (do not demand as much current) than the 3.6's, so tubes may sound pretty darn good with them. Tubes with 3.6's is a pipedream... (short of huge costly 300wpc+ tube monoblocks).
Peace.
Keith
Peace.
Keith