March 16, 2020
Sound Ground Unveils DUNU LUNA Pure Beryllium Flagship in-ear Earphones for 198,000 Yen in Japan
Sound Ground Japan today announced the launch of premium earphones DUNU LUNA in Japan. The flagship model is equipped with a 10mm dynamic driver of pure beryllium diaphragm. Pure Beryllium when compared with aluminum weighs 25% less, is 4 times stiff and has 3 times more response speed. To increase the acoustic properties and rigidity of the cavity housing, sound tube, the connector to housing is made of pure titanium. Connector has a separate designed so as not to affect the acoustic properties of the inner housing.The connector uses a unique detachable inflatable MMCX connector.
The wire of the supplied cable adopt a “custom single-crystal copper / DHC sterling silver mixing line” made Furutekku. External noise is suppressed by placing a single crystal copper silver coating shield layer. Using the switching connector, it is also possible to replace the 2.5mm balance /3.5mmPRO/3.5mm unbalanced /4.4mm balance. Reproduction frequency is 5Hz – at 40kHz, sensitivity of 110dB @ 1kHz, impedance is 16Ω.
DUNA LUNA weighs 10.3 g and the cable length is approximately 1.2 m. The kit includes two types of leather case, hand strap; a total of five types of ear tips (custom SpinFit × 2 / silicon ear tips / medical grade silicon ear tip / Comply) are included. Sound Ground flagship earphones DUNA LUNA will be available in Japan from April 16th for approximately 198,000 yen ($1690) including tax.