Using 2 different brands of interconnects?

you'll get changes from one on vs slightly different changes form the other. it may all be complimentary as total stack of effects and considerations, or it may not be all complimentary.

No harm will be done and it certainly won't stop the tunes from flowing.

And there's not much else to say about it... try it and see kinda thing.

Good? bad? You're the guy with the cable...

no cables were harmed in the making of this comment.

OK, thanks. I’m done if y’all are done.

It's not a problem, especially in your price range, unless you're talking about about mixing within the pair, e.g.: Brand X for the right channel, Brand Z for the left.

There are no problems with using different interconnects on different pieces of gear at all in act in most cases t is preferable.

Please watch out for RCA cables that won’t be good for tube gears but they meant for SS.  It happened to me!  After my guru made a whole bunch of RCA cable for me with good seal of the cable itself and with good plugs it took care of all the interfered noise—gone yesterday...gone. Good luck!