I have a Backert Rhumba preamp. I haven't done much comparison with other preamps in my system, but I'm very content with this one. To my ears the sound is neutral, transparent, and lively but always with a pleasing balance of virtues. Many listeners seem to describe their impressions of this preamp in similar terms, saying that it gets out of the way so that you're listening to the music not the gear. I'd say that is a good way of putting it.
The people at the company are easy to get hold of if you have questions, and very willing to help. In my case, for example, I asked about a mono switch and they got back to me offering to convert the mute switch (which I didn't particularly need) to a mono switch. So that's what I have now.
There's another thread going on at the moment about the Backert preamps (search under "Rhumba 1.1") if you haven't seen it.
The people at the company are easy to get hold of if you have questions, and very willing to help. In my case, for example, I asked about a mono switch and they got back to me offering to convert the mute switch (which I didn't particularly need) to a mono switch. So that's what I have now.
There's another thread going on at the moment about the Backert preamps (search under "Rhumba 1.1") if you haven't seen it.