Modwright Preamp Owners.

Thanks for the clarification.  Any other previous or current LS100 owner care to chime in?  For what this devices has to offer, I am surprised there aren't more stand alone reviews.

I started with a LS 36.5 (single box) which replaced an ARC LS26. The Modwright performed better than the ARC in my system, but the sound quality was close--both sounded pretty neutral, with the Modwright being a little more dynamically adept and detailed. At the suggestion of a friend I sold the LS 36.5 and replaced it with the LS100. The LS100 had significantly more "tube" characteristics, was warmer in tone and a little more spacious. However, I found it noisier than the LS36.5 (or the ARC LS26). Dan patiently worked with me to bring the noise level down but ultimately I decided to sell the LS100 in favor of a Herron VTSP-3A RO2 (which has since been upgraded to RO3 status). While more money than any of my prior linestages, in my system the Herron far outperformed the Modwright or ARC components. It is dead quiet, more musically natural sounding, has better timing (PRaT) and has more useful features. And as everyone here will acknowledge, Keith Herron is a joy to work with (no dis on Dan Wright who is also one of the true "good guys" in audio). Yes, the Herron is significantly more money. However, in my system it is clearly superior to any other linestage I have owned or auditioned. 

Anybody have any idea how the herron VTSP-3A R03 preamp stacks up against today's top flight preamps like the audio research ref6 or the levinson 52 , ayre kxr twenty or luxman c900u?

My LS-100 replaced a Consonance Cyber 222 mkii, which replaced a Wright Sound WLA12A. As you can see, I'm a fan of the 6SN7.   :-)   The LS-100 has been terrific in my system, especially after procuring some Sophia 6SN7s and a Synergy HiFi 5AR4. I've had it for 4 years now, longer than any previous preamp, and I've no desire to upgrade.

I have had a full weekend with my newly acquired used LS-100 and am finding it quite nice. It came with Sophia Electric 6SN7s and Mullard GZ34 tubes and I had some extra 12AU7 NOS Mullards around for the phono section. Sound is noticeably more detailed and soundstage improved over my Conrad Johnson LS17. My amplifier (DNA-1) has a lot of gain so I don’t need the higher gain phono tubes. The preamp is more impressive in person that in photos...its big and nicely built. Had to fine tune my DACs output to get the volume correct, one negative on the LS-100 is the volume dial isn’t as precise but that’s nit picking a bit....its lush and dynamic. I’ll be keeping this for a while and selling my current setup soon. Also got positive girlfriend feedback on the upgrade...always a bonus.