With this Parasound 2100 you will not be able to properly play LOW output MC cartridges. So, High output MC’s and MM’s will work fine. This means No to the Denon DL103 and Yes to the 2M blue. If it were me, I would go with a Ortofon 2M red $100 best bang for the buck!
(I am assuming your using a typical S shaped tonearm with removable head shell)
Matt M
(I am assuming your using a typical S shaped tonearm with removable head shell)
Matt M