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Not sure if this helps as I use Ethersound and network links not ACE but I have 80m cables to connect rack and surface together, sometimes quite a bit is left on the drum and never had a problem with interference. Though to be fair I installed two Gigabit network smart switches one withe the mix rack the other with the surface and connect them together using multimode fibre cable. With this I can have up to 550m of cable between the two, this works very well indeed so these days it is my usual method of connecting surface and rack.