Try this..... Cheap, simple to build, sound is superior compared to many megabuck preamps. Line level only, gain is about 12-14x, drives 15-22 k loads with ease. Those russian tubes linger around everywhere for a few dollars a piece.... If you need, I have phono (MM) schematic too with the same tubes.
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as a preamp junkie, I can tell you sanyo plus is the best I ever tried
followed by some onkyo integra and nikko, ps audio and some parasound
followed by some onkyo integra and nikko, ps audio and some parasound
The BF862 single ended preamp by Juma sounds fantastic and easy to make.
http://www.diyaudio.com/forums/pass-labs/146310-bf862-preamp-48.html#post4925674
http://www.diyaudio.com/forums/pass-labs/146310-bf862-preamp-48.html#post4925674
How much work are you willing to put in? Something like a Yamaha C-4 is a darn good preamp, but may appreciate addressing age-related woes. Also, the headphone output in this model is less than ideal (very high gain, high output impedance, and temperature compensation looks suspect even for a Class A job).
Both amps are very good.
https://www.hifiengine.com/hfe_downloads/index.php?yamaha/yamaha_c4_schematic.pdf
https://www.hifiengine.com/hfe_downloads/index.php?audiolab/audiolab_8200q_service.pdf
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thanks and what do you think about MUSICAL FIDELITY a3.2 CR compared with the both above ?
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