Trying to connect 6 beolab 1 ,and a beolab 7.2 in a surround setup using my denon avr`s pre out. using mk3 cables for the all beolab1 speakers and mk2 for the 7.2 speaker. the trigger cables are placed with the avr . Problem: a slight noise in the beolab 1 speakers and more noise in the 7.2 . changed the trigger cable for the 7.2 to a type with usb instead of the mini jack that pluges directly into the denon.   that did help alot , but still some noise.   It seems the noise is mostly from the denons trigger output (bought a filter,but did not help) , so my question is : will it be better to run coax rca from pre outs directly to where speakers are placed - in to trigger cable there and then in to speaker.? will connect a smart relay to trigger out on the denon and a smart relay where the trigger cables are. they will then activate when avr is on. will this help with the noise ?