Dear @dducat : I see two options as an up grade your system.
One is to change the phono stage for a better one and stay with the Delos ( byw, this cartridge is not " compressed " as you say, this characteristic could be happening in other link of your system. ) and the other could be to buy this AT MC cartridge:
https://www.audio-technica.com/en-us/at-art9xa
Regards and enjoy the MUSIC NOT DISTORTIONS,
R.
One is to change the phono stage for a better one and stay with the Delos ( byw, this cartridge is not " compressed " as you say, this characteristic could be happening in other link of your system. ) and the other could be to buy this AT MC cartridge:
https://www.audio-technica.com/en-us/at-art9xa
Regards and enjoy the MUSIC NOT DISTORTIONS,
R.