The Polk Audio SDA 2B speakers use an interconnect cable to connect the SDA effect speakers to reduce cross talk and help expand the sound stage and imaging of the speakers by connecting the negative terminals of both speakers together. An effect similar to the Sonic Holography from Carver. Polk warns not to use amps that do not have a common ground, meaning the Wyred4Sound amp that I have that uses a balanced, dual-monoblock design, is not suitable for use and could damage the amp or speakers. I am assuming that your monoblocks would not have a problem running these speakers when the SDA interconnect that connects the negative terminals of both speakers is used.