kpetree

Hey guys, I have two US Amps 3200's and I am wondering if I need a MLT to strap them? From what I understand, they can be strapped. I cannot find any info on the web regarding what and how to strap them. Can someone offer me some insight if they are strappable? If so, how would I go about it? There is no master/slave switch on them, hence why I think I'll need an MLT module. Both of the amps have US Amps/RE stamped on them. They have the grey wire, not the red. Thanks!