You have to change a cartridge first of all, m44-7 is extremely high output MM with Bonded Conical tip! The key of this DJ cart is high output and durability, but not sound quality.
Get yourself a proper Hi-Fi cartridge with advanced stylus (nude diamond, not bonded). If you want brand new then look for Audio-Technica with MicroLine stylus.
You have to start from the cartridge, it will be the most noticeable upgrade, after that you will have to rewire your tonearm with Cardas or Discovery (flexible internal wires) and external shielded phono RCA cable.
Get yourself a proper Hi-Fi cartridge with advanced stylus (nude diamond, not bonded). If you want brand new then look for Audio-Technica with MicroLine stylus.
You have to start from the cartridge, it will be the most noticeable upgrade, after that you will have to rewire your tonearm with Cardas or Discovery (flexible internal wires) and external shielded phono RCA cable.