Backert Labs Rhumba preamp


Hello,
I am thinking of going to an active line stage for sometime now. I have a separate thread for that and people have suggested some good choices. The reason for this thread if that, while I have all along said that  don't want tubes in the system, a few have convinced me that I should try tubes in the system, especially with ProAcs.
With that said, I researched a few tube preamps, that have XLR out and the Backert Labs Rhumba is the one that has only 2 tubes, which makes me comfortable to "deal in tubes".

I would like to hear from Backert Labs Rhumba owners who moved from Solid State preamplification to this preamp. What are the differences you heard? Any improvements?

I read a review on the Stevehoffman forum and the user mentioned that there is a "hum" in this preamp. This bothers me and hence I decided to check on this forum, if anyone has experienced this with the Rhumba in their system. One poster on this forum also confirmed the "hiss":
https://forum.audiogon.com/discussions/backert-preamps-any-users

So I was wondering, if there are any users who have recently purchased this preamp and what is their experience with the hum/hiss issue.

BTW, I blame Ralph of Atma-Sphere, Almarg  and my dealer for making me consider tube amps :-) Can't believe I am creating this thread.

Thanks!
128x128milpai
I have now lived with the Backert Labs Rhumba 1.3 for about 4 months and thought I would give my feedback on this preamp. First I should acknowledge that this is a preamp that has ALL the traits of my TVC (sold off), AND adds dynamics that I only found out after adding this preamp to my system. My ProAcs sounds the "full range" that they are.
My biggest worry was the loss of transparency if I went active. On first listen  thought that I had lost transparency, only to immediately realize that the transparency is still there, but I was not used to the extended low end that this premp produced in my system. The highs are also more airy than the TVC. Contrary to what I feared, this preamp adds "life" to discs that have excellent dynamic range. I say this because the CDs that are a "loudness mess" sounded fine with the TVC, but the well recorded CDs (example Hobo, Sara K) did not sound as impressive as they do with the Rhumba. I can say this NOW, because I have now experienced how these CDs should sound like. I have a feeling that a TVC would sound great with a tube amp and a super sensitive loudspeaker. In my system, it sounded very good, but nothing close to the magic that the Rhumba 1.3 is doing.With the Rhumba 1.3, I am enjoying my music collection as if I purchased them all new again. At my listening position I can actually "feel" the bass that it produces with my ProAc D48. This never happened with the TVC. But again, I should not blame the TVC for that. If anything I have to blame myself, because I was always worried to take the volume past 18 (of the 24 positions) on the TVC, fearing that it would not sound good. My gripe about this preamp is that CDs that have messed up recording (dynamics) are played as-is, without making them sound good. Example is John Mayer Continuum CD. It sounds pretty loud at 9'O clock position and it does not sound as impressive. I always thought of tubes as "thick syrupy" sound. Fortunately this is not true. Some "brittle" sounding CDs still sound bright in the treble range.This preamp comes with the new issue of Mullard tubes. They sound pretty good. But Thanks to @almarg. I have replaced them with Gold Lion tubes for the added midrange magic and extended dynamics at both end of the sound spectrum. Vocals sound so real with these tubes. Of course, with the new preamp, I had to reposition my loudspeakers for the best possible sound. Thought I never missed remote control for the past 9 years that I used the TVC, I love the remote volume control. The remote has only 2 buttons, but the weight is substantial. The tube replacement cover is pretty neat. I used to keep it open while listening to the system, for the first month. But I was told that this premp has the appropriate design to vent out heat and I need not keep the cover open.All in all, I am super happy ( as if you cannot make that out from above) with this preamp. Sorry, if it sounds as if I was advertising this preamp - but no, I am not. I am thrilled with what it has brought in my system and listening experience. Thanks to Ralph, Almarg and my dealer who pushed me to get a tube preamp. And thank you to all the Rhumba users who provided me with their feedback.
Glad I was helpful, Milpai, and thanks for the nice words as well as for the comprehensive update.  But more importantly I'm glad it worked out so well for you.  Enjoy! 

Best regards,
-- Al 
Congrats @milpai 

Welcome to the Backert family, and thanks for wonderfully articulating the sonic benefits that the Rhumba preamp brought to the table for you as it did for us other happy owners!