I have not heard the Delos, but, I am a big fan of Lyra cartridges (I own a Titan). They are invariably built to a high standard and last a very long time. The Delos has a reputation for being a touch warmer and more relaxed sounding than the Titan, which is probably compatible with your choice of speaker and amplfication.
I also have an Orpheus L, which is a terrific cartridge too. It is a little more prominent in the upper midrange than the Titan, and perhaps a little less open and extended at the very top compared with the Titan. I have heard the cheaper Transfiguration cartridge, the Phoenix, in a friend's system. That is a very good sounding cartridge for a lot less money. It is quite lively sounding and I particularly enjoyed it playing both cool and hard bop jazz.
I also have an Orpheus L, which is a terrific cartridge too. It is a little more prominent in the upper midrange than the Titan, and perhaps a little less open and extended at the very top compared with the Titan. I have heard the cheaper Transfiguration cartridge, the Phoenix, in a friend's system. That is a very good sounding cartridge for a lot less money. It is quite lively sounding and I particularly enjoyed it playing both cool and hard bop jazz.