Desire to try tubes

So I am new to this have no audio contacts, and low budget it seems based on reading forum. I inherited my brothers Heresy I’s (and LP /CD collection) two years ago and started my journey. First bought a Rega P3 and Rega Fono stage running with existing 20 yo Denon 5.1. Then upgraded the Hereseys from Crites with crossovers and new tweeters (46 yo units). Months later after research and savings bought Stellar GCD and Stellar S 300 amp along with Syzygy SLF 870 sub from Underwoodwally. Nice! Next Marantz 6006 CD as transport and Underwood Emerald Physics and Core Power gold power cords and speaker cables. As able Audio Quest entry connects for all. Each move improved sound. Added a Bluesound node 2i as well only listening to Pandora though. I have no reference to options as I’ve only owned Hereseys and never heard a tube amp in a home and am very curious if a tube pre-amp would be a big plus? If I tried one could muster up to 5k. Just looking for the best sound quality I can afford.
Room is 14.6 x 14.10 x sloped ceiling 8-13’ with 5’ flat section at 13.
Charles, you can always be counted on for providing balanced and thoughtful responses.
skypunk- @millercarbon how much is Raven paying you?

That’s an insult, not an argument.

considering my experience with the Blackhawk must be a lot.

Really. You don’t say. No, I mean literally. You don’t say.

With only 116 posts it only took me a minute to scan them all and see no threads related to the Blackhawk you supposedly own. There are however a whole bunch of times you say how much you love your Raven speakers. So apparently its okay for you to recommend Raven. But not me.

There’s words for when people are so dishonest, assume for themselves rights they would deny others, and insult people for no good reason. It would seem you’ve earned the right to be called all of them.

Unless you are able to show how Raven is paying me, which you can’t, because they aren’t, then this would be a good time for you to apologize for insulting me. Or let the whole world know what a bloody hypocrite you are.

Your choice.
The Supratek was a great addition to my system, there are many good tube preamps and amps. Check the Supratek threads as well as the Don Sachs preamps. Both use 6SN7 output tubes. 
The Hereseys are efficient so you don't need lots of power. I have high efficiency speakers as well, all tubes. Just be careful, even with tubes you can get a bright presentation, especially with Klipsch. 
You might also consider taking a look at Aric Audio for either a tube preamp , or for separates. There are a few threads on Audiogon that you can search on some of the models, and one member - teajay has professionally reviewed some of these. Likewise, based upon my recent interactions with Aric he is fairly easy to reach and engage with about his products if you have an interest
Hi facten,
Thank you for your kind comment.  The OP admits he is new to this endeavor.  I just wanted to assure him that with reading, time and patience he'll realize that 5,000.00 can go pretty far if he's careful and learns more about the high end marketplace. There are a lot of good choices available.