I have bridged the front and rear channels on the amp using y leads as my amp allows this. On the back of my active crossover, Im using the rear channel output. On the amp, because I have bridged it, im using obviuosly front and rear. When i pull out one of the phono leads from the amp, nothing happens. what I mean is, on the front channel, only one of the leads works not the other and the same thing happens on the rear channel. If i just used either front or rear on the amp, then they both work ie if I pull out a lead one at a time, then the left or right cuts out which is normal but is whats happening above normal or have I connected it up wrong or do I need y yeads for the back of the active crossover as well to connect front and rear on the crossover.