My SP-9 speaker cables came in last night.
I replaced the PAD cables I had and the immediate difference appears to be more clarity and not as dark. They appear to add or take away nothing, at least compared to the PAD cables.
My only complaint is the spade design, it’s nothing like I’ve seen before. I’ll try to describe it: so for one wire, say the + lead, imagine it runs down to a plastic “V” with the two legs each about 1/8” inch wide by about 1/16” thick and about 1/2” long. The wire comes through a barrel of plastic and the end of the “V” where the wire splits into a “V” shape and follows down each leg of the “V”. Then what appears to be a copper tape binds the wire to the leg and acts as the conductor for the signal. So you slip it over the binding post and when you tighten down the post the copper tape is pressed down forming the connection.
In practice I don’t know if this is the best approach, but you have to be a bit careful since the splayed nature of the “V”
geometry means the outer most edges of the “V” could potentially hit the adjacent “V” on the adjacent binding post and cause a short.