My old NAD amp has 2 channels on the back for speaker hookup (left and right). The posts have banana clip holes and also screw down knobs, giving me the option to have 2 left speakers and 2 right. Is there any benefit to this? I'm using kestrel hotrods as my mains, and micca mb42x as the secondaries. I know it is using the same signal, am I halving the signal to the speakers? If so, is that a bad thing, as in, messing up the staging? It is easy enough to unhook the miccas, so no biggie to me. Thing is, my hearing isn't what it used to be and I'm concerned I'm not hearing high frequencies as well as I used to. This was an attempt to add more highs to the sound.