Hahaha facepalm to my self , I totally missed that picture and just went by his verbal description of testing front and rear speakers . I now see your testing for maximum UN-distorted output signal from the head unit , makes sense now.
i"ve never seen or heard of Italia hi-fi car audio products but those amps look business , I own some steg audio components and twister amps made in Italy and they perform beautiful , It looks like you're going all out for sound quality
