who makes custom speakon speaker cables for the Benchmark AHB2?

I tried to respond but Audiogon blocked my post.  Oh well.  

Benchmark will probably make them for you. They are very nice up there.

Try performance audio. They do nice work. 

Blue Jean Cable confirmed that they can make cables with Speakon.  I suspect that BM uses Canare 4S11 cable.  

Figure out which speakON connector you need, buy them here, and re-terminate the amp end of your favorite speaker cables yourself or, purchase from one of the venders already listed.

I had my Audience FrontRow cables terminated with SpeakON. I even had my CODA #8 amp terminated with SpeakON. At that time, I had an AHB2 and #8 amps.

Audience did the termination for me.