Listening in mono

Setup exactly the same as for stereo good mono will float an image in between the speakers that is surprisingly captivating. Not a point, more of a sphere.

As far as preference goes, I think it has more to do with the music than the fact its mono. Some records were originally done mono. So there's a "getting it right" historical aspect to it. There's also mono cartridges, which if you get into it enough to be willing to buy a cartridge just to hear mono better, more power to you.

The cartridge though, that's about it as far as setup goes.

No need for a dedicated mono cartridge! However, a stereo cartridge can in theory still react to any vertical modulation in the mono grooves and add some noise to the playback. I myself have not experienced this, so it may be a moot point!

On a highly resolving system, mono recordings can be outstanding. I love mono records and have a lot of them, mostly jazz recorded prior to 1957.  

There are a couple of things that improve the mono sound. 1. A mono switch on either your line stage or your phono stage. 2. A cartridge that is "mono friendly." The Audio-Technica OC-9 MK-III is a stereo cartridge that plays mono recordings exceptionally well. 

My friend Robert made an observation during one recent listening session. He said that with stereo recordings, "you are there," and with mono recordings ... "they are here." I concur. 

If done right, excellent mono recordings will have you saying ... "who needs stereo?"

Frank