I see some good recommendations and comparisons in the turntable advice thread, so lets get cartridges there own thread. I have very little experience so far, but look to upgrade my set up in 2016. Most likely a VPI Classic 1, so any advice regarding cartridges and their sound signatures would be greatly appreciated. An Ortofon Red MM cartridge was included with my Project Debut Carbon DC, and I was immediately disappointed by the sound , and sought an upgrade. My Dad told me to give the Red a chance,as they need a chance to settle down. I gave the Red almost 70 hours, and I still didn't like it. More than A few people from various forums recommended an Ortofon Blue stylus be inserted into the Red's body. A nice and easy swap that didn't involve aligning the cartridge. So that's what I did, and I'll give you my thoughts on the two cartridges. RED : Right off the bat it sounded thin, dry, and unforgiving, even after almost 70 hours of use the dryness was still there. It also suffered from a decent amount of inner groove distortion. It reminded me of finger nails on a chalk board. I didn't like anything about this cartridge, it was very fatiguing for me to listen too. BLUE : This cartridge saved the day. It added body and smoothed out the treble. It flat out sounded more musical and engaging. The inner groove distortion was also greatly reduced. It sounds warmer, sweeter, and has a much nicer forgiving flow to the music. Lets hear your experiences with both MM and MC.