Backert Rhumba 1.3 OR Modwright LS 100 ?

I have heard the Rhumba and was very impressed. I own the Rhythm 1.3 and it’s the best preamp I’ve owned to date. Previous preamps I’ve had are: Vinnie Rossi LIO DHT, Audible Illusions Modulus and LTA MicroZOTL Preamp Which I still have in a second system.

I am a huge LTA fan and love my MicroZOTL Preamp. I did recently purchase a Backert Rhythm 1.3 for a second system. The Rhythm is clearly superior to the MZ Pre but at twice the price. I wish I could comment on the Rhumba but I have never heard them side by side. The MZ Pre is no slouch and it’s not going anywhere.

@milpai 

i use NOS 12SN7’s with adapters. This is compatible with the 12AU7 it comes with. The 12SN7’s say Mullard on them and I didn’t know Mullard ever made any 12SN7’s. 

@soix 

The Rhythm 1.3 has a fuller sound stage and an even more refined, realistic image. It really shows you why a good preamp is important and don’t get me wrong because the MZ preamp is a killer pre and same with the MZ2. Don’t forget the Rhythm is in the $10K range.

The LTA pre’s do respond well to tube rolling. I’m using all NOS tubes. Currently Ken Rad 6SN7 and NOS Brimar 12AU7.