rel with monoblocks

I would appreciate input of any owners of rel st series 2 owners who have monoblocks. I am considering upgrading to monoblocks of a yet to be determined type, but my rel studio 2 instructions say that to use it with monoblocks, you must use a rel for each channel. To me it seems that as long as the rel cable would reach both amps it should be no different than connecting it to the back of a stereo amp. Any thoughts?