Upgrade from TAD 150 Signature

Just curious, are you feeling an itch to upgrade or is there something in particular that you feel you're not getting from the TAD-150? I've used this preamp for several years and the only area where I think it could use some help is with respect to the phono stage, which isn't very quiet (at least to my ears). If you have a similar sense of the unit's limitations, you might think about adding an external phono stage.

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I have had this unit just ove 5 years. I have not had anything else to listen to in my current system. I am just curious to see if anyone has upgraded and if the upgrade was indeed an upgrade, a lateral move or a downgrade.

Eagleman

Eagleman'
i think the relaxed sound comes from tube rectification,not really sure.I have plenty of punch!!! About my system McCormack DNA-1 Deluxe power amp,powered through a PS Audio Ultimate Outlet,Raysonic CD-128 cd player,PS Audio Power Plant Premier for power to everything but the amp,Speakers are Magnepan MG-12s with modified crossovers and Mye stands,and dual Velodyne Mini-Vee 8" subs.
I also listen to classic rock,symphonic prog,jazz,fusion classical,well you get the idea.