Maestraudio / OTAMA910SBGRY

Variations

aestraudio MA910SB is a 4.4mm balanced model of MA910S equipped with ceramic audio technology.

■Compatible with 4.4mm balanced connection and tuning exclusively for balanced connection
・``MA910SB'' is the brand's second product, which has been developed as the brand's first product, the IEM ""MA910S,"" by changing the plug part from the versatile 3.5mm unbalanced plug to a ""4.4mm balanced plug,"" and retuning it for balanced connections, as well as making additional corrections and adjustments. By adopting a 4.4mm balanced plug and tuning for balanced connections, it is possible to further improve expressiveness when combined with high-quality audio players and USB-DAC products that support 4.4mm balanced output.

■Universal IEM aimed at small size, light weight, and wide sound stage
・The MA910S series is equipped with a single newly developed graphene coat dynamic driver developed and tuned exclusively for Maestraudio brand products. When tuning, we focused on the head-related transfer function and optimized the frequency response to give the listener a sense of realism. By combining it with a passive ceramic coated tweeter (described later), we are able to achieve natural reproduction with minimal distortion from low to high frequencies. Additionally, by incorporating HDSS (*), a high-performance acoustic correction device, we have achieved a wide sound stage that was difficult to achieve with a small resin casing.
The MA910S series is a universal IEM that produces comfortable listening-type sounds regardless of genre, while also being suitable for spatial perception and expression such as e-sports and movie watching.
*HDSS is a patented technology of TBI Audio Systems LLC.

■ Passive ceramic coated tweeter ""RST"" born from a new idea
・Ceramic sound technology using piezoelectric ceramics that Maestraudio has cultivated. The MA910S series is equipped with ""RST"" (Reactive Sympathetic Tweeter), a passive ceramic coated tweeter developed with a new idea. The multilayer piezoelectric ceramic tweeter ""VST"" (Vertical Support Tweeter), which can be said to be the core technology in ceramic audio technology, has a very high straightness of high frequencies over 20kHz, so it was necessary to make the unit coaxial. In the development of the MA910S series, we needed a ceramic tweeter that would efficiently transmit high frequencies forward even if it was off-axis for use in a universal IEM type housing. This led to the creation of ""RST,"" which has split vibrations similar to cymbals and music boxes. Its principle is to induce vibration by irradiating the diaphragm with sound waves from a dynamic driver. This product uses a diaphragm made from shakudo, which is often used in wind instruments, and has a unique special ceramic coating applied to its surface to obtain a clearer high-pitched tone. This is a passive ceramic coated tweeter with a new concept that allows you to control the sound quality by changing the dimensions, material, and support method of the diaphragm.

■Hybrid cable and original earpiece
・The cable uses a hybrid cable of silver-coated OFC and OFC, achieving improved sound separation and excellent localization. In addition, the earpiece comes standard with the original earpiece ""iSep01"" in 4 sizes (S/MS/M/L), which achieves an excellent fitting with less strain even when used for long periods of time by slightly lowering the softness of the silicone rubber. Also included are ear hooks, a genuine leather cord reel, and a carrying pouch.

■Domestic assembly providing high quality
・All products are assembled in Japan and provided with high quality.

■Driver: Hybrid type, 10mm diameter graphene coat dynamic driver x 1, 9mm diameter RST (Reactive Sympathetic Tweeter) x 1
■Impedance: 16Ω
■Sensitivity: 102dB
■Frequency characteristics: 20Hz to 40KHz
■Cable length: 1.2m (4.4mm balanced L-shaped plug)
■Accessories: iSep01 earpiece (S/MS/M/L), ear hook, genuine leather cord reel, carrying pouch
■Country of origin: Japan
■Manufacturer's warranty: 1 year from the date of purchase (*)
*Please be sure to keep proof of purchase (with the date of purchase), such as a receipt or purchase history email from an authorized domestic retailer, and the warranty card together. For domestic use only.