Perhaps the new synth board some of us have already installed in a K3? Phil W7OX On 5/14/15 3:31 PM, Grant Youngman wrote: > Question .. Part no. is the same, but just to make sure ... > > Is there something new about the KRX3 sub receiver listed with the K3S, or is it the same legacy component I currently have in my K3? > > Thanks > > Grant NQ5T