Check you manula or call Krell tech support to ask if you can do it thorugh the MAT process. "The most unique feature of this amplifier is Multiple Amplifier Throughput (MAT), which sends the same musical signal to all amplifier channels using only one of the balanced or single-ended connections, thereby reducing installation complexity with multiple amplifier systems. Individual channels can be bridged as well."
If not, then you can use this adapters. http://www.audiogear.com/MonsterCableAdapters.html or something similar of better quality.
If not, then you can use this adapters. http://www.audiogear.com/MonsterCableAdapters.html or something similar of better quality.