LYRA DELOS CARTRIDGE TOO BRIGHT, THIN AND SHRILL SOUNDING

@jeffvegas - 

You are completely correct.  The delos is a terrible cartridge, way to thin and bright.  There's NOTHING wrong with your system.

I'm in a particularly charitable mood.  If you can carefully repackage the cartridge in its original box with all the protection in place and no damage, I'll pay shipping and give you $150 to dispose of that terrible piece of phono cartridge.  I'll even test and verify the cartridge's condition for a couple thousand hours.

What the OP is describing sounds more like a poor setup.  Tracking force too light, VTA way off, arm mass way too light.  

Nothing can fix a poor setup except improving to a good setup.  That's why there are turntable setup specialists.