Having just taken delivery of my very nice new MA GR60s , I see that they are triwirable . I already have biwire inplace from my previous configuration, and having checked both the manual and the speaker inputs themselves, I wondered if anyone can advise me of whether there is an optimum congiration for which two of the three inputs to use please? I can use trial and error, but thought I would check with you good knowledgeable people first. Thanks....