Replace 2M Black or new phono?


Hi,
newbie here 
Less than a year ago I upgraded my old turntable to new Pro-Ject 6 Perspex SB table with Ortofon 2M Black cartridge. Additionally I bought Pro-Ject Tube Box DS2 phono preamp. 
However, after using them for few months, I tried switch from Tube Box to my integrated amp phono section (Yamaha A-S2100) and really it wasn't so much drastic better or worse result. So I sold phono preamp. However, I began to think maybe with additional cash on the hand, I could sell 2M Black and get in MC cartridges category.... 
Because yes, 2M Black is nice cartridge, and it was big improvement and difference in sound quality from my old Audio Technika AT95E cartridge. However, no offence, just 2M Black is not suited for my perception of cheerful sound. It's very detailed, very "scientific" - ideal reviewers cartridge 

So, my dilema is - what to buy first: cartridge or new phono preamp. However, I got dealer which has AudioTechnica / Ortofon / Denon / Grado / Nagaoka and I can get them cheaper, and sometimes even test-drive.
And with phono preamps is harder, my dealer sells only Pro-Ject and Rega (which both I don't like). So I was reading good reviews, and thinking about Primare R32 phono, which I could buy only online and without listening in my system.
However, if my Yamaha A-S2100 MC integrated phono section is capable to drive and give at least 40-50% of cartridges capabilities - I would take that sound experiment. At the moment I would say, that I'm looking for a different sound signature, not absolute quality.

My cartridges shortlist:
- AT33PTG/II 
- AT33EV 
- AT-OC9ML/II 
- DL-103 or DL-103R 
- Quintet Blue

What's your thoughts? Maybe someone made similar moves or have more educated opinion than me?

My system, if matters:
- Yamaha A-S2100 amplifier
- Yamaha CD-S2100 CD/SACD player
- Pro-Ject 6 Perspex SB turntable with carbon 9 cc Evolution tonearm
- Spatial Hologram M4 Turbo S speakers
- QED Xt40 speaker cables / QED Reference Audio 40 RCA & XLR interconnects
manfredas
Definitely a new cartridge, it’s much better to have several cartridges to understand what do you like in your system. If you’re looking for a brand new cart then forget the MC if you’re not willing to spend $1500+ on it and remember that Denon 103 has conical tip (the cheapest profile ever) and your tonearm is not designed for such a low compliance cartridge!

I would advice to check Garrott P77i or higher models from this respected Australian manufacturer, those models comes with advanced profiles (Micro Scanner II and Frits Gyger). However, the prices are not cheap (in Australian Dollars) and on the vintage market you can find better solution, especially if you will look for Audio-Technica AT20SLa, AT-ML170 or 180, Victor X-1 or X-1II or Stanton 881 or 981 (those rare models are superior compared to very expensive MC carts) and the stylus profile is Shibata / Micro Line / Stereohedron. Amazing MM cdartridges in my opinion, and still 3 times cheaper than any good MC. These cartridges will put your 2M Black in the dust.
do you have your speakers set up properly and a listening position that is in relationship to the speakers and the room?  if you are truly new to the 2-channel audio game then you should research this area and begin there,
the reason I ask is that the tube box is a very good phono preamp and can deliver an exceptional, large sound stage that should sound much better than the internal stage on your amplifier.  
the 2M black is an OK cartridge and can be beat by a good MC but I don't believe you have the flexibility in your internal phono preamp to properly load or add the appropriate gain.  you should have kept the tube box.  
 Out of the cartridges that you listed I would go for the OC nine. However as a previous poster has already mentioned I don't believe it will work well with your Tonearm. 
Keep the cart. I'd get the speed control for your table first. Damn fine table but the speed control is mandatory. Your speakers are 93db efficient and with that I'd say go integrated tube amp w/ phono. The Primare btw was way too polite in my system.