EZ is as EZ does..

The ultimate RIAA EQ solution is an 'LCR'. Unlike cap/resistor networks, it puts nothing in the signal path except high quality chokes. The caps and resistors are to ground so they are mostly out the way. The result is a bigger soundfield, and more dynamic contrast and transparency.

BUT, not so easy to implement as stages around the LCR need to be impedance friendly and layout is critical, noise becomes the problem. An LCR phono stage is one of the more difficult DIY projects.

As explained in a previous blog, two UTS modules set for high gain, in series, with an RIAA network in between makes a dead quiet 36db gain phono stage. (UTS >> RC RIAA >> UTS = 36db phono stage).
Now just remove the RC RIAA and replace with 10k LCR: UTS >> 10k LCR >> UTS = 36+ db phono stage. Everything needed is already there - only a 10k loading resistor needs to be added across the LCR out and ground. = 36+ db because there is an increase in volume level of about 1 or 2 db compared to the RC RIAA.

This recipe is playing now.
There is one more possibility: 600 ohm LCR. The UTS has low enough output impedance to drive it and offers the possibility to direct couple to the driving stage. Over the next few days we will be exploring that possibility as well.

Whichever turns out best will be our UTSphono-Max.

BTW: the picture shows LCR with different labels but they are both 10k.

regards