Looking for a preamp used under 5k


Hello, I'm new to this hobby.  I'm looking for a preamp to pair with my BAT REX amp.  I have a Dynaudio Contour 5.4s, Oppo Sonica,  Mostly stream from Tidal listening to vocal.  I do have a Oppo 205, which I can use as a preamp, but not sure if I should keep it or sell it to get an preamp.  Any suggestion is greatly appreciated.
128x128ninh1969
Sell the 205! Use funds toward this fantastic preamp...

https://tmraudio.com/components/preamplifiers/allnic-l-3000-mk2-stereo-tube-preamplifier-l3000-mark-...

Or this...

https://hometheaterreview.com/linear-tube-audio-microzotl-preamplifier/

Then use leftover over funds to send your Sonica into Ric Schultz at Electronic Visionary Systems (EVS) to be upgraded. Between these two things your system will be completely transformed!
The recently discontinued Ayre K-5xeMP was the lowest priced Stereohile Class A rated preamp for several years. This is one on Audiogon right now for $2800.
Thank you for all the inputs.  I do you to get the Bat Rex but a little too much money right now.  I do have the Sonica that has been modded by Ric at EVS.  Since I only have a few CDs, I am going to sell the 205 to fund the preamp.  
@ninh1969

Like I said, there pretty much is no reason to get anything more expensive than the Bryston.
ninh1969

You are one of the very few whom own a B.A.T. REX.  I look forward in reading more about your pre-amp purchase.  Happy Listening!