ddHifi Memory AL4.4 Retro Planar IEM

Crafted from lightweight aviation-grade aluminum alloy,it offers a stress-free fit that minimizes ear fatigue. The Memory 4.4 features a revolutionary 13mm ultra-linear,full-range annular planar unit. Crafted from premium microfiber leather and equipped with YKK zippers,the interior features dedicated compartments to keep the left and right metal earpieces separated.. The ddHiFi Memory AL4.4 are in-ear monitors featuring planar magnetic drivers, designed to reproduce sound with precision and stability. They incorporate a driver developed in collaboration with Moondrop, featuring a dual suspension system and a four-pole magnetic circuit to better control the movement of the diaphragm, thereby improving sensitivity whilst minimising distortion. They combine an aluminium alloy housing, whose rigidity minimises unwanted resonance, with a shielded cable that protects the signal from electromagnetic interference. This design ensures consistent sound reproduction, free from any colouration caused by the chassis or the signal transmission. Driver Configuration 13mm Planar Driver Plug 4.4mm Effective Frequency Response Range 20Hz-20kHz Impedance 16Ω±15% (@1kHz) Sensitivity 121dB/Vrms(@1kHz) THD ≤0.1%(@1kHz) Housing CNC AL6063 aerospace aluminum Cable Gray Braided 5N OCC Cable Weight Approx. 25g Length 120cm