Welcome to the world of premium sound with the all-new 408H Skyline - a hybrid in-ear monitor crafted to elevate your audio experience. Inspired by the famed sports car, the 408H resonates with a dynamic fusion of power and precision in sound, offering exceptional potential for cable and eartips customization to match your unique preferences. Drawing from the acclaimed technologies found in the Alpha Ti and the Impulse Ti, the 408H features two 9.7mm dynamic drivers nestled face to face within a proprietary 3D-printed A.C.C. acoustic chamber. This unique chamber structure subtly reduces high-frequency emissions, ensuring a refined sound output. Its six precision balanced armatures, thoughtfully grouped into three bands, effortlessly cover mid, mid-high, and high-frequency ranges. Guided by a C.S.U. crossover network, each group of armatures undergoes precise frequency and phase adjustments, resulting in a harmonious blend of powerful bass, captivating mid-tones, and crystal-clear high-frequency sound.  408H Skyline Features: 3D printed semi-custom UIEM shell 2 custom 9.7mm PET diaphragm dynamic driver units 6 high-precision balanced armature driver units 4 channels C.S.U. (CrossSync Uniphase) crossover network 3D printed A.C.C. bass acoustic chamber 0.78mm brass gold-plated 2 pin sockets Frequency Response: 20Hz to 20KHz Impedance: 8 Ohms @ 1KHz, 0.5Vrms Available in CIEM and UIEM UIEM available in multiple looks Indulge in a sonic journey with the 408H Skyline, meticulously designed to offer unparalleled performance and aesthetics, available in both Custom and Universal designs.