I have the Teo pre amp and running a loom of Teo IC’s. I removed the pre amp to hear how much influence it was having on the over all SQ of the system. Running the Bricasti M1 SE into the BSG QOL signal completion stage input and output to my Manger S1 active speakers the sound was glorious but I could hear the old digital haze, smear and harshness in the music. The Teo pre amp went quickly back in the system and there I heard the sound of the glorious 300B amp ( thrax Spartacus like) and the analog sound of a TT. Any component that can do that is SOTA in my opinion. It’s a passive unit and I would value it at at least $15k. to $20K.
Teo Audio, the hidden gem of audio reproduction.