Hi and welcome, seems like you are interested in balanced armatures. Here follows some information for you. Degauss Labs has developed the Noirs. These are In-earphones using both Balanced and Dynamic armatures to create what we think an ultimate sound. That makes the Noirs Hybrid earphones. Using the balanced for the high and mid and Dynamic for the bass.
So first for some information around Balanced earphones. You may have heard some good things about ‘Balanced Headphones’. Audiophile headphone aficionados agree that balanced-drive is the ultimate nirvana of headphone listening, the cat’s meow of cans, the creme de la creme of personal audio, the highest of the ‘high end’.
In essence a ‘balanced-driver’ is a design scheme that delivers ‘balanced’ equivalent and opposing [negative/positive] audio signals to each side of the headphone driver coils. Balanced-drive delivers a significant increase in audio performance due to the doubling of slew rate and voltage swing power, a massive reduction of THD distortion components, and the virtual absence of crosstalk at the headphones due to the elimination of the common ground plane. The end acoustic result lends an extremely expansive, ‘open-toned’ quality to your headphones, as well as very transparent and refined musical detail, tightly textural low bass, and perfectly pronounced mid-ranges. Many music lovers say it´s the closest headphones can come to sounding like a ‘room speaker’ listening experience.
In-ear monitors use one of two driver technologies – balanced armature and dynamic.
In this article, we’ll discuss the technology behind these two designs and the pros and cons of each.
http://musictechreview.com/in-ear-monitors-balanced-armature-drivers-vs-dynamic-drivers/
