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On 12 Feb 2005 14:07:05 -0800, wrote:
We were kicking around the concept that the phono section should be at
the turntable instead of the preamp, indeed, if you have a stereo amp
with volume control you shouldn't need a preamp, but also because the
phono section should be close, very close, to the cartridge, as with a
tube or FET condenser mic.
Excellent idea. I own a Revox B791 turntable that -- required in my
system setup -- is located about 15 ft. away from my preamp. I built
a SS preamp into the TT base, powered by the TT power supply.
Originally, I used a phono preamp board taken out of a Creek OBH-8.
This works for years with pretty god results. I recently reassembled
the OBH-8 and replaced it with a Bugle board. I also revamped the
power supply section that feeds the preamp. On initial tests, it
sounded better than the OBH-8 -- more detailed and more analytical
(that some people make hate but I like). I then got bogged down with
other projects and havn't finished this one yet....
-- Ron
What are some good solid state phono section designs? Should they
treat the cartridge as a balanced source (four wire) or not and should
plus and minus DC rails be needed or should a monopolar supply be used?
What have you readers out there built and liked?
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