I'm an idiot: or always check what you have and are already using before buying new..
A story of caution (for me anyway!)
After much procrastinating over which speaker cable to buy, Steve (soundsheavenly) mentioned in a post that he uses QED Classic 79 strand in his system, good enough for him, more than good enough for me.
I order 10 metres and some gold plated banana and spade connectors (my C60's are so old school!).
Measure it all this morning, ended up just cutting into equal lengths, added the connectors and pulled out the old cable.
The cable I had been using was just some that I had in a box, one length or generic white stuff and a longer piece of generic black stuff, or so I thought. Upon checking the black stuff is actually (can you guess yet??) QED Classic 79 strand, oh now I remember buying a load of it when I got all new AV kit a few years, never mind it was only 21 quid delivered for the 10 metres and I guess it's always good to have some spare.
Moral of the story, always check what you have stored away or even in use before you got spending your pennies, you could well have what you need already!
My music room system - Kef C60's, Arcam rDAC, NAD C352 fed by an old Mini ITX PC
My AV system - Dali Zensor 1 5.1 system, Onkyo TNXR636 with Onkyo Dolby Atmos speakers fed by an Nvidia Shield TV