I'm considering replacing my passive preamp with a tubes. Is it worth it?

An active tube preamp would add timbre and texture to the sonics of your system, since each brand of tube offers a sonic signature. It may give you more flexibility on fine tuning the volume control since it has an active gain stage.

It is most important that the output impedance of the preamp be a good match for the amp. The amp’s input impedance needs to be 10-20X greater than the preamp’s output. That would allow for transients in the lowest and highest frequencies.

t is most important that the output impedance of the preamp be a good match for the amp. 

Tested Stereophile: "Bryston measured just over 33k ohms at the balanced inputs, just over 47k ohms at the unbalanced."
This is a match for any preamp, passive or active so long as they have little or no gain as the Bryston 4b only needs 1.4v for full output, and most sources have over 2v already.

Cheers George

 @amritash what do you feel is missing from the sound coming out of your setup?

Here ya go!
http://www.quicksilveraudio.com/products/line.html

Hello,


I appreciate everyone’s thoughtful feedback. Thiefoflight that is a spot-on question. I had a weird problem happen. I was having trouble with the volume going high enough and it sounded muted  The source of it turned out to be the iPhone from which I was streaming the Tidal to the Bluesound Node. I found out that my sound improved enormously when I replaced the iPhone 6 plus with a 7 plus.on the old phone. Not fathoming it could be the source I assumed it was the passive not providing enough gain. I just so happened to discover this because I smashed the iPhone 6 and needed to get a new one. This had been going on for weeks and just replaced the phone two days ago.


 I never would have thought about getting one had the problem with the phone never occurred. It sounds awesome again now. But since I got the bug in my head about the potential to get it even better I’m still pondering the value of adding the tube preamp.