The Orchestra displays stainless steel chassis with tubes mounted on ceramic sockets with golden pins. It has 4 power tubes mounted in pushpull which are driven by 2 ECC83. This unit is the result of a very thorough study undertaken by Jadis with one main objective: to make a product with all the essential qualities of a highend device at a reasonable price. The "REFERENCE" version provides a golden finish for front plate, better transformers' casing with golden top plates. Tone controls can also be added on demand. This is one of those amplifiers that offer fantastic sound no matter what you play. It gives you a perfect sense of space, openness and airiness and a very dynamic sound. You will hear every single note as clearly as possible. When listening to your favorite music with this amp, you truly experience it as if you were witnessing a live performance.