[🎶SG] MAESTRAUDIO MA910SR Japanese-made Monitoring Grade In-ear Monitors

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MAESTRAUDIO MA910SR 
Japanese-made Monitoring Grade In-ear Monitors 

> Re-cableable with Pentaconn ear connector
> Aluminum face plate
> Small, lightweight and wide sound stage
> "RST" is a passive ceramic-coated tweeter born from a new concept
> Hybrid cable and original earpieces
> Assembled domestically to provide high quality products

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Descriptions:

> Masterful craftsmanship, masterful sound
> The brand's third product equipped with unique ceramic audio technology
Pentaconn ear connector Re-cable compatible and aluminum faceplate

> MA910SR Development Background
> Maestraudio's first model, the MA910S, incorporates head-related transfer functions into its design and is equipped with an original passive ceramic tweeter, the RST, aiming to achieve a natural sound with a wide sound stage across the entire range. It has been well received by many users as a high-performance IEM that does not tire the ears of many users. However, at the same time, we have received many requests for a re-cabled model from users who are looking for a more personalized sound. Therefore, we have repeatedly researched and prototyped the MA910SR, which is the first Maestraudio model that is compatible with re-cabling and is a symbol of the brand, while maintaining the wide sound stage of the MA910S, which is the best in its class.

> Re-cableable with Pentaconn ear connector
> The MA910SR uses the Pentaconn ear connector, which is well-known for its low contact resistance, as the connector for re-cabling. Not only does this connector have stable mechanical reliability when connecting and disconnecting, but it also reduces the contact resistance to less than 1/10 of that of the MMCX, a common connector for re-cabling. In a re-cabling model that allows you to enjoy a variety of sound quality, reducing contact resistance is an important design requirement for enjoying the characteristics of various cables. The MA910SR is an IEM that allows you to enjoy the changes in sound and quality of upstream sources such as audio players and music sources, as well as cables.

> Aluminum face plate
> In Maestraudio's IEM development, the characteristics of the various components that make up the IEM are important parameters. In particular, the selection of the components for the housing is carefully analyzed using our own FEM (finite element method). The sound emitted from the back of the dynamic driver directly hits the faceplate on the back, causing small vibrations. We focused on the fact that this vibration can be transmitted to the entire housing more quickly, resulting in a sound with a lot of information. Therefore, in the MA910SR, we adopted an "aluminum faceplate" with a hairline on the faceplate part of the housing. This means that the amount of sound information transmitted from the faceplate to the inside of the housing is overwhelmingly greater in the MA910SR than with a plastic faceplate. As a result, the MA910SR has succeeded in achieving a sound with more information and higher resolution while maintaining the width of the sound stage.

> Small, lightweight and wide sound stage
> The MA910S series is equipped with a single newly developed graphene-coated dynamic driver that was developed and tuned exclusively for Maestraudio brand products. In tuning, we focused on the head-related transfer function and optimized the frequency characteristics to give the listener a sense of realism. By combining it with a passive ceramic-coated tweeter, we have achieved natural reproduction with minimal distortion from low to high frequencies. At the same time, by installing the high-performance acoustic correction device "HDSS", we have achieved a wide sound stage that was difficult to achieve with a small plastic housing. 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.

> "RST" is a passive ceramic-coated tweeter born from a new concept
> Ceramic sound technology using piezoelectric ceramics cultivated by Maestraudio. The MA910S series is equipped with the "RST" (Reactive Sympathetic Tweeter), a passive ceramic coated tweeter developed with a new concept. The laminated piezoelectric ceramic tweeter "VST" (Vertical Support Tweeter), which can be said to be the core technology of ceramic audio technology, has a very high linearity in high tones above 20kHz, so it was necessary to make the unit coaxial. In the development of the MA910S series, a ceramic tweeter that can efficiently transmit high tones forward even if it is not on the coaxial axis was required for use in a universal IEM type housing. This is where the "RST" was born, which has a split vibration like a cymbal or music box. The principle is to irradiate the diaphragm with sound waves from the dynamic driver to induce vibration. This product uses a diaphragm based on red copper, which is often used in wind instruments, and a unique special ceramic coating is applied to the surface to obtain high tones with good grain. This is a new type of passive ceramic coated tweeter that allows sound quality to be controlled by the dimensions, material, and support method of the diaphragm.

> Hybrid cable and original earpieces
> The cable is a hybrid cable of silver-coated OFC and OFC, which improves the sense of separation of the sound and provides excellent positioning. The connector is Pentaconn ear, and the "protrusion on the right connector side" makes it easier to distinguish between left and right even in the dark. In addition, the earpieces come standard with four sizes (S/MS/M/L) of original earpieces "iSep01" that realize an excellent fit with less strain even when used for long periods of time by slightly reducing the softness of the silicone rubber. Other accessories include a genuine leather cord reel and a carrying pouch.

> Assembled domestically to provide high quality products
> Maestraudio is committed to making all of its products in Japan, incorporating Japanese "craftsmanship" at a high level of quality, such as molding techniques by master craftsmen in Gunma and surface processing by a factory in Tsubame-Sanjo. All products are assembled in Japan, providing high quality products.

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Specifications:

> Product Name: Maestraudio MA910SR
> Colors：Light Blue, Dark Blue
> Driver: Hybrid type
> 10mm diameter graphene-coated dynamic driver x 1
> 9mm diameter RST (Reactive Sympathetic Tweeter) x 1
> Impedance: 16Ω
> Sensitivity: 100dB
> Frequency response: 20Hz to 40KHz
> Cable: 1.2m (3.5mm 3-pole L-shaped plug) with Pentaconn Ear (OFC) connector
> Country of origin: Made In Japan 

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