Audio Matiere Equilibre in wonderful condition. Audio Matiere was designed and owner by Jean Jacque Van Leeuween a former designer at Jadis. During his time at Audio Matiere he designed some of the best tube gear to hit the US in Mid 90s. I am the original owner of this glorious piece of audio history. I recently returned this preamp to Marigo Audio labs fo a complete check up and tune up. All new tubes three months ago NOS 6550c power tubes with the Audio Matiere logo on them, Mullard EL34s and Tungsol 6SN7s. The Unit functions perfectly and gives you a taste of the Jadis glorious sound at a fraction of the cost. The only reason I hesitantly sell this piece is I'm moving to a large Sound Lab Electrostatic speaker and believe I'll need more power. I have the original wood crate and packing materials for safe shipping. This unit in in nearly perfect condition.. definitely collector worthy. I also have the matching Paraphrase preamp if someone wanted both. Very nice. Will consider trades as well.