You may not know but Jorge Gonçalves is the President of EISA.
“The iTube does not use DSP processing and is limited to working the signal in the analog domain, making it passed through RLC passive filters that introduce subtle phase rotations at certain frequencies and help you find the instruments that emit frequency values for low…..the iTube could add a little more emotional involvement at their hearing. Other styles of music where the inclusion of iTube made it very enjoyable musical performance were chamber music and jazz, especially in small groups and in recordings made live…..I did a quick experience of combination of iTube with the headphone amplifier Pioneer U-05-S, getting it again inserted between the CD player and the U-05-S, and using headphones like the Sennheiser HD700. And there is no doubt that the concept of binaural Blumlein works almost perfectly with headphones, even if the original recording was made in a conventional manner and not through binaural technology. The sound as coming out almost completely out of the head, there being suspended around us with greater individualization of each performing positioning within the assembly.”
“Conclusion: With the large attractive of non-introduction of overly evident colorations on the music that we hear, the iTube can introduce a slight ‘ flavouring ‘ on reproduction, which translates into a superior spatiality and which introduces some interesting clues in the exact location of the instruments of percussion.”
Special thanks to Jorge Gonçalves, Audio magazine and SmartAudio (iFi:Portugal)!
3D Holographic sound technical notes including Alan Dower Blumlein, can be found here: http://ifi-audio.com/wp-content/uploads/data/iTubeTechpaper2_3DHolographic.pdf
