The OP discovered that lamp cord, the rubbery supplied power cord and the rubbery, joined IC's work just fine.
Are power cords and speaker cables dependent?
I am interested in member's experiences with the synergy between audiophile power cords, amps, and speaker cables. Reviews seem to emphasize finding the best power cord for a particular amp, but I don't recall a review that described how a particular cord/amp combination performed better with some speaker cables than others.