Not sure about the advice about separates.....you do not need to have a separate power amp and preamp to enjoy the benefit of an outboard phono preamp, I have never before heard that kind of advice.
If I were you, I’d keep your Rogue v2, its very nice. However, I would advise you to go with a tubed phono stage, such as a Tavish design or the pro-ject tube box ds2. As far as cartridges, you mention that you are thinking about the 2m bronze. I say go for it! It is a fantastic cartridge and will pair nicely with either of the phono stages aforementioned. I speak from experience of ownership of all the above. Another great choice would be the Hana EL or EH, if you want to dabble in moving coils. You won’t do much better than the 2m bronze or the Hana’s for the money, no way. Someone also mentioned to upgrade your turntable...but I cannot see how that advice is given if you did not mention what turntable you have.
If I were you, I’d keep your Rogue v2, its very nice. However, I would advise you to go with a tubed phono stage, such as a Tavish design or the pro-ject tube box ds2. As far as cartridges, you mention that you are thinking about the 2m bronze. I say go for it! It is a fantastic cartridge and will pair nicely with either of the phono stages aforementioned. I speak from experience of ownership of all the above. Another great choice would be the Hana EL or EH, if you want to dabble in moving coils. You won’t do much better than the 2m bronze or the Hana’s for the money, no way. Someone also mentioned to upgrade your turntable...but I cannot see how that advice is given if you did not mention what turntable you have.