AKG N40 | Headphone Reviews and Discussion - Head-Fi.org
Earphone With Mic AKG N40 - Silver | Back Market
AKG n40 in ear Monitor - Reviews | Headphone Reviews and Discussion - Head-Fi.org
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