Tube/Hybrid Tube Preamps Below $2000


I pulled the trigger on a ps audio s300 power amp and the new klh five speakers. I can’t wait to set them up, but I can’t decide on a preamp. I’m new to tubes and separates, and this seems like a good opportunity to add some warmth. At the moment my short list is the rogue audio rp-1 and the van alstine fet valve cf rb. The cfr looks great, but pushes above $2000.
The rp-1 includes a phono stage which is a plus, and rogue seems to have a great reputation. Rogue audio often pairs tubes with class d amps, so it seems pretty safe that it’ll pair with the s300. RA is a PA company which is a plus.
The fet valve seems to have great reviews too, and it uses 4 tubes instead of 2 (this isn’t necessarily an advantage I know). I also like the simplicity and look of the fet valve better than the rp-1.
I was wondering if anyone had experience with either, or even both. Also, any missed options? Is the Doge 7 worth considering? The Doge 8 is just a little too much. I’m not opposed to used, but warranties and return periods are a big advantage. Van Alstine’s in particular seems great
lakeofthewyles
save a little more and get the rogue audio RH 5 headphone amp balanced line stage. an excellent sounding preamp and a value at its $2500 msrp.
sold mine and sorry that i did.  took gobs of $$$ to improve on. 
@lakeofthewyles So far I've only had one formal review of the Unlimited II by Enjoy The Music, however there is a thread on Audiogon where several users have commented on it below:
https://forum.audiogon.com/discussions/aric-audio-systems-unlimited-preamp

Best regards, Aric
@aricaudio I appreciate the response. It’s definitely moved up my short list and I’d probably get the phono stage too. Really happy with the suggestions that have been made. The erhard pre’s look great too.

Am I going to lose some detail and low end with the more pure tube preamps? I’m willing to sacrifice some for the warmth and sound stage that tubes bring, but I don’t want to lose too much punch and clarity. Having a solid state power amp with a tube pre seems like a decent compromise. Like I said, I’m new to tubes, and home hifi in general. I apologize if these are basic questions 


@lakeofthewyles- You're very welcome, and that's much appreciated however I have omitted the phono stage option as I personally found it to be a bit noisier than I would prefer. The reviewer, Paul at ETM stated that he found the phono most enjoyable and did not encounter any noise in his system, but I have found the only way to get it as quiet as I like is a two-chassis phono stage with outboard power supply.

On the line stage section, there is no rolloff at either frequency extreme and the bass remains powerful and taught without any bloat or overhang, the midrange is warm with depth and the high frequencies are extended and sweet. I believe that if any piece of gear rolls off either frequency extreme that it is not Hi-Fi and would have no place in a high end system. I personally listen to music that's all over the map, with the majority of it being rock and dynamic/percussive music and played bass in working bands for over 10 years- so I appreciate the importance of a solid bass foundation.

Best wishes, Aric