Need help finding a new phono stage.


I just purchased the Marantz tt-15s1.
It has a dynavector 10x5 installed on it.
I have a Cambridge audio cp1, and it sounds great. Which I'm not fully understanding because I thought that stage was for mm only? Can someone help explain this?
My amp is set 3/4 the way up for the volume level I like.. but even at full tilt it doesnt sound distorted or anything!
I guess my main question, and my next step is what is a good phono stage to upgrade to??
For now though I am happy. 
Thanks in advance.
128x128kevdubbya
In your budget the Ifi Iphono2 is very flexible and sound quality punches way above its price point. I used one for a short time before i got the Gold Note PH10. its surprisingly good google it.  Mike Fremer analoge plannet gave it a very good review. does MM, MC and has multiple settings for almost any cart. even has different curves for older records. 
My local dealer recommended a musical fidelity v90-LPs.
Going to bring home to try it out. Only a cost of $100 dollars after trading in my CP1
I had Jasmine LP2.O for a year.  Read the reviews, but easily below $600 if you can find it. I really enjoyed the flexibility and musicality of thos.phono pre-amp. Phillip Holmes tweaks the $639 Jasmine LP2.0 SE phono preamp - Dagogo https://www.dagogo.com/phillip-holmes-tweaks-the-639-jasmine-lp2-0-se-phono-preamp/

PS I had this until I found something significantly more musical - the Manley Labs Chinook phono pre amp.
Dynavector p75; trichord Dino; Graham slee jazz. A better phono stage massively lifts ur system. Whilst ur current stage keeps you happy stick with it. Save up to 1000usd and u get a much better choice both new and second hand.