JABEN - AKG N40 features a hybrid driver system that includes a Knowles balanced armature and dynamic driver. The carefully selected combination of both drivers allows you to enjoy High-Resolution audio content
AKG N40 | Headphone Reviews and Discussion - Head-Fi.org
Product review: AKG N40 - Richer Sounds Blog | Richer Sounds Blog
Stereowise Plus: AKG N40 2-way Hybrid In Ear Monitor Review
AKG Audio cable with remote for N40 | Audio cable
AKG - Personalize the way you listen to your favorite music. #AKG #N40 deliver ultra-premium sound + 3 interchangeable filters, so you can completely customize your listening experience. Thank you, Stereo Electronics