I like the Duelund and love the Western Electric NOS wire which the Duelund wire was fashioned after. 10 gauge and can be purchased below. Please note it is sold as a twisted set! Great value. Don’t terminate .... use the bare wire. Same with the Duelund wire. I started off with the Duelund 16ga and finally ended up on the Western Electric 10ga. Personal preference only and system synergy.
http://www.ebay.com/itm/per-foot-Western-Electric-AIW-10ga-STRANDED-cloth-covered-gray-PAIR-/2316636...
It is warmer sounding and more full bodied while the Duelund wire is lively and a tad more open. Two great options.
Both these options are not shielded as you say. This is one reason for their openness. What these cables have in spades is uncanny realism. Less electronic or reproduced sounding and more live. Your music sounds real. It sort of transcends talking about this or that audiophile adjective.