Looking for advice on speaker cables for proac d38 and arc ref 150


Just replaced marsh 400 with arc ref 150. My first and hopefully last tube amp. Currently using MIT mh750 bi wire speaker cables.
proac d38
Preamp  arc ls26
moon audio cd3.3
Cd to pre. synergistic research tungsten 
Xlr
pre to amp MIT mi330 shotgun xlr med
i really don't like playing with cables but looking for advice that doesn't cost a fortune 
128x128narunner2
What's wrong with you MIT speaker cables? I used the same cables you have with a ProAc/ARC combo and had no issues.
I've been using OCC copper for the last 20 years (mostly Harmonic Technology mostly with ARC and BAT electronics). Sounds good to me...
i was assuming that what worked well with ss marsh might not be an ideal match do to change in impedance .  
narunner2,

You have a great system. As has been said your MITs are some great cabling but if you find that you'd like to try something new I would recommend WireWorld Eclipse 7 or Equinox 7 interconnects and speaker cable. 

Cheers,

Scott