SUT vs. Phono preamp

There are so many great SUTs from the past, so it is absolutely no problem to find one and try one (or even a few). 

One of the reason i like Luxman SUT is because i can have 3 different SUTs in one set. Basically two is enough for nearly all cartridges as you can see on that image with 8030 and 8020. However, they made another one (8025 for use with cartridges with impedance from 3 to 40 Ohm). Those SUTs are Silver toroidal type. Instead of changing SUTs user can change inserts in one base. Amazing feature in my opinion. 

I use a homebrew battery ploperstrd tube phono preamp. Undetectable noise floor; twin mono design so no cross talk; and a stepped 4 deck pot with 1% metal film resistors from Vishay I got from Alan online dealer. Sounds awesome. 

It’s a Nelson Pass design using 12AE6 6.3 volt old fashioned car radio tubes. I side a nine volt lithium battery for a power supply;  gives a bit more gain and don’t seem to shorten tube life much, if any. Mine are nine years old and dhow no sings of weakening, at least so far. Really sweet sounding component!

https//hackaday.com/wp-content/uploads/2014/06/portabe_tube_preamp_schematic.jpg Here’s a similar one to what I built:

Dear @fleschler  : That SUT has 3 diferent controls at the front plate and I don't know  but I can't imagine how the designer let the signal totally out of those 3 controls each time you make changes down there.

Anyway, I prefer the straigth one as the AU-1000 and is not so expensive when you find out.

R.