6h30 is too strong for preamplifier. Try to avoid this tube in preamplifier if you value harmonic sound.
6h30 works well in power amplifier.
Ref 10 is a exception as they use 4pcs each channel and independent tube rectified for each channel.
Showing 4 responses by runwell
Agree with @ghdprentice You are better to choose tube amplifier instead. Used Audio research Ref 75 might be a good choice with your price range. A lot of people choose SS power amplifier, and I try to remind several times, if they replace with tube amplifier, the result will be big different. I always use tube amplifier, This is 100% for me. and for the pre, most of time I love SS pre. I always think the tube power amplifier is the right way to go.
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This is a very interesting thread, and in fact, this thread hind a big question mark for us all. It is the pre we ask for. For example, Audio research Ref 5se, some one try to swap it out and some one call it world class pre. So who is right? What content inside the pre? What we ask for the pre? I am here to send my 2 cents: There are 2 most important fact of the pre. Go small or go large! Go small, means go detail There are a lot of sparkles on the recordings, with right pre you can hear very clearly, with another one, you almost can NOT hear it. Some one value this point, I am the one who value small, you can call small sound. Go Large, meaning very big 3D imagine, very spacious, The sound is very open, and sound becomes big. The new one might be surprised and call it is the one who ask. Audio Research Ref 5 se is go large definitely. Does the pre can go small and go large both???? Seldom!!!!! So who is who? Different people emphasis on different things. They both right, they are searching the different kinds of things. From this point of view, you will not convince the other people to choose what you choose. People are just different.
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