REL speakon connection to amp vs speakers

@macg19 you are right and Franks version is awesome.

Frank at Signal Cables makes an aftermarket version of the REL speakon cables, he does not make the cable supplied by REL.

Sorry if I am missing something, but if Signal Cables is using REL cable, how is there a difference between the original or upgraded REL cables (Bassline Blue) and the Signal Cable? 

Are the connectors different?

a number of manufacturers make their own version on the "REL" Cable...

@pbomberg 

Funny you should ask.  I spent some time last weekend making some custom cables for a pair of REL subs I just bought.  The subs are to the outside and just a bit behind my speakers, so it made sense to make a short cable to hook up to my speakers, not the amp.

The result?  Dead silence, no humm, great integration.

And , yes, the manual is very poorly written (or NOT written) for stereo subs!  Good grief REL.  You can do better.

I have never had hum with my REL S 812’s, but have wondered if leaving the Speakon ground unattached to the Audion monoblocs might confer some subtle improvements in addition.