Hi,
I'm interested in building a phono pre-amp of the cost is no object variety, to use between my Garrard 301 and a Linn Klimax Control preamp (which lacks a phono stage unlike my earlier Linn Kairn).
Low noise is clearly a must and happy to consider a transformer input stage. I prefer solid state over valve for this sort of low noise application having spent years cooling things down to reduce noise (although for power applications I have used both in the past).
I liked the Linn Linto as a preamp and the design in the final chapters of the book by Vogel on low noise RIAA preamps looks interesting, but I don't know of any comments from anyone who has built one.
I also vaguely recollect an interesting design by Douglas Self in the 80s, but can no longer find the original articles.
Any ideas welcome....
Alan
I'm interested in building a phono pre-amp of the cost is no object variety, to use between my Garrard 301 and a Linn Klimax Control preamp (which lacks a phono stage unlike my earlier Linn Kairn).
Low noise is clearly a must and happy to consider a transformer input stage. I prefer solid state over valve for this sort of low noise application having spent years cooling things down to reduce noise (although for power applications I have used both in the past).
I liked the Linn Linto as a preamp and the design in the final chapters of the book by Vogel on low noise RIAA preamps looks interesting, but I don't know of any comments from anyone who has built one.
I also vaguely recollect an interesting design by Douglas Self in the 80s, but can no longer find the original articles.
Any ideas welcome....
Alan
Forum member Polyphase designed a very simple but effective MC pre amp. The Phobos is very quiet because he has chosen low noise input transistors, and its fully balanced. It is optimised for MC and doesn't need any pre-preamps or transformers, neither of which will improve the sound. You don't need to spend lots of money to get top shelf performance.
PHOBOS, a balanced MC phono stage
PHOBOS, a balanced MC phono stage
There's a thread for a build of Doug Self Linear Audio design http://www.diyaudio.com/forums/analog-line-level/280458-doug-self-preamp-linear-audio-5-a.html?highlight=doug+linear+audio which may be of interest
I probably should have said that I lack any kind of phono stage; not just the MC preamp, so that includes the RIAA equalization stage(s). The Douglas Self design I had in mind was not the one in Linear audio; it was Wireless World in December 87 (I found the reference but not the WW issue, my storage system is a bit "ecclectic")
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