The REGA Turntable can be elevated by upgrades through GROOVETRACER.com, highly recommended. The Dynavector 10X5 is a incredibly good sounding cartridge and new versions go for $750! The fact that you have this 10X5 mounted on a REGA tonearm shows you know what your doing as this is a very synergistic combo! THE key to awesome vinyl sound is the phono pre amp, I would try a Musical Surroundings NOVA , or phonomena ll. To spend more money just makes things more sensitive and takes some of the fun factor away IMO.
Matt M