Seperate phono stage v.s. step up transformer


Fellow analog lovers help me with this dilemma. I have a Teres 265 turntable with a Graham 2.2 arm and a Lyra Helikon cartirdge. I just purchased a new preamp that has a terrific phono stage but, its' sensitivity is 2mV @47Kohms and the Lyra cartridge is only 0.22mV.
So I have 3 choices, get a new cartridge, get a seperate phono stage, or a step up transformer.
What would those of you with more experience in these things do? If it is change cartridge, which one? If seperate phono stage, which one? If a step up transformer can be used without sacrificing any detail, dynamics, etc. which one?
Thanks ahead of time to any of you that answer these questions.
agaffer

Showing 2 responses by agaffer

Thank you for your responses. The preamp that I am refering to is the Granite Audio Model 770. Their CD player with the tube output has been the first CD player that I have owned that I can listen to with as much enjoyment as vinyl so, decided to try their pre-amp also. Before I was using a ARC LS 5III with the Phenomena + Battery pack for a phono stage. Not the best phono stage but, I got it as a package deal with a used Clearaudio turntable before the Teres.
The Granite preamp can be returned after 30 days and I could go back to the ARC but, I like the Granite better. Just have to figure out if I should change the cartridge or go with the step up.
Thanks for the responses to my original question. I guess one of the questions I should have asked is if the step up transformer degrades the signal at all, or are the better ones like a good pre amp.
My fear that the transformer may add a unwanted sonic signature to the music made me take the safe route and I purchased a used Tom Evans Groove.
By the way, I can't beleive any of you would let Romy the Cat bait you into a dialog. There is always someone like him in any forum, they go away when ignored. I have several hobbies, audio, surfing, and keeping large (250lbs on up) land tortosies. Even those forums have guys like Romy. Clearly they are jus posers and should be paid no attention to.