Use the "Left Output-Post Effects/Mono Output-Post Effects" into the PA. You'll get better acoustic sound through the PA than micing your amp, not to mention far fewer feedback problems, which are always a bear with acoustic guitars anyway. Most all pseudo-stereo amps or processors are set up like this, with either the right or left line/FX loop outputs also doubling as the "Mono" output.

When using only your "Left/Mono" output, the two channels will be summed as far as the dry/wet (effects) signal mix, and you'll get everything the speakers get, but through one line out instead of it being separated and fed through separate internal power amps into two speakers for a true pseudo-stereo effect when you're using the chorus.

"Line Level Unbalanced" is (usually) a standard 1/4" phone jack connection with a ground and a hot, used for most instruments and high-impedance microphones. A "Mic-Level Balanced" is always an XLR-type connection, for low impedance microphones and instruments/amplifiers that are equipped with balanced line out connections. A "balanced" connection has a ground, and two signal carrying conductors (one positive, one negative). It offers a much higher degree of noise rejection than an unbalanced (one signal conductor only) setup, by phase cancellation of the noise.

BTW, my first name is John too, so you're off the hook on naming your firstborn after me, LOL! He'll just be "John Jr." But if it's a girl, then please don't name her John on my account................

Thermionic