In this short video example Production Expert team member Julian Rodgers compares the results achieved by rotating an XY array of small diaphragm condensor mics through 90 degrees so they are arranged vertically with the conventional horizontal orientation.
Why Rotate The Array?
He explains that this is a technique which he'd heard about but never actually tried. In theory it makes sense. In typical close-miked scenario the stereo array is there to capture some width from the differences in sound coming from different parts of the instrument and, if used close enough, the array might well pick up useful amounts of direct sound from the strings and place them across the stereo panorama. It might also address a tendency for the bass to favour the left hand channel (from the audience's perspective) in a horizontal array because of the contribution of the guitar's body.
Which do you prefer? Is this a technique you have tried before? Share your thoughts in the comments below.