Monoprice is the way to go, great sound, great value. Let your ears be the judge, not the reviews of the experts, who have never listened to your system.
I don't know if these are the best but in my experience with my Jolida 502P amplifier Morrow Audio MA2 ICs have been a wonderful pairing. Power cord wise Pangea AC9 power cords if you can wrangle them into place are good. Speaker cable wise I find PNF Audio Symphony cables to be a great pairing as well.
To the OP what do you consider budget for your cables? To some $500 speaker wires are budget. To others $15 Interconnects are budget. Also what tube amp do you have and are trying to pair cables with?
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