Introduction

I have to admit, I’m a sucker when it comes to having the latest and greatest toys.  As my wife can attest, I’m always looking for excuses that will allow me to spring for that next upgrade. In recent years, Onkyo has been at the forefront of new A/V receiver technology and features, releasing new models at an almost breakneck pace in order to stay one step ahead of the competition.  The TX-SR607 continues that technological advance as the first product in the world to sport Dolby Pro Logic IIz.  Pro Logic IIz is a new processing algorithm that derives left and right front “height” channels from our current surround soundtracks and music.   Of course, these new height channels require additional speakers, which make a move to Pro Logic IIz a potentially expensive upgrade.   As I was anxious to see if these new “height” channels really added to the listening experience or were just another gimmick, I tore into the 607’s box as soon as it arrived.