What MC cartridge is mounted on the Dual?
Many MC cartridges works best with tonearms that has a mid or high mass, but there are also those that works with the low mass arm in the Dual. So name the MC cartridge in use, it may be a great one.
Low output MCs needs special amplification yes. High output MC's works with the same amplification as MM cartridges.
From a technical point of view, it is easier to just add a MC pre-phono amplifier than replacing the cartridge - especially for a newcomer that hasn't replaced a cartridge before. But it can be learned. I could learn it.