MDREX1000 - Earphones SONY - Free user manual and instructions

USER MANUAL MDREX1000 SONY

Stereo Headphones MDR-EX1000 4-257-842-32(1) Product Information Informations produit Produktinformationen Información del producto Informazioni sul prodotto Informação do produto ©2010 Sony Corporation Printed in Japan2 (GB) Introduction Over many years, Sony has joined together with people who work in professional production studios, and using their feedback has crafted superior headphones that meet their high expectations. One of the most important elements among those expectations is accurate sound. In order to allow the wearer to enjoy that sound in an outdoor environment, these headphones have passed through a development stage that pursued perfection in functionality and performance. To provide accurate sound and a fit designed for outdoor usage and portability without compromise, they are packed with technology that Sony has accumulated to date as well as Sony’s own cutting edge technology. This pamphlet explains these technological components.3 (GB)

1. For high sound quality

Rich bass and expansive treble: Large caliber 16 mm diameter dynamic-type driver unit In the closed-body-type in-ear headphones, a large caliber dynamic driver unit that is the largest in the industry at 16 mm diameter was used. It enables a wide dynamic range available only with a dynamic driver unit and playback of a broad range of sound, providing a clear and accurate sound with incredible balance from the bass to treble range. Driver unit size comparison 9 mm driver unit 13.5 mm driver unit 16 mm driver unit4 (GB) Suppressing unwanted vibrations and providing high resolution sound playback: Liquid Crystal Polymer film diaphragm For the driver unit diaphragm material, lightness and consideration to the seemingly contradictory features of highly rigidity vs. high internal loss is essential. Though rigidity is key in accurately converting input signals over a wide bandwidth into sound, a high level of internal loss is also required to suppress unnecessary vibration of the diaphragm itself. Liquid Crystal Polymer has already been identified for some time as a material that can provide a balanced combination of these two characteristics in high order. However, previously it could not be used to create diaphragms for headphones due to the inability of compositions and manufacturing methods to obtain sufficient heat resistance and the inability to achieve the thinness required for usage in headphones, caused by a low degree of film elongation and the difficulty of formation. To solve this problem, a highly stretchable Liquid Crystal Polymer was successfully developed for use as a casting film using polymer varnish. This made it possible to enable both rigidity and a high level of internal loss over a wide bandwidth, while also providing the level of strength required to stand up to the process of creating a thin film. In short, a material for creating the perfect diaphragm for reproducing accurate sound was born. Liquid Crystal Polymer filmLiquid Crystal Polymer film5 (GB) Increasing flux density and achieving highly sensitive playback: 440kJ/m³ high power neodymium magnets To enhance sound resolution, 440 kJ/m³ high power neodymium magnets which boast the highest energy efficiency among general industrial goods were used. They supply clear mid and high tones and powerful bass. A manufacturing method called the “transverse field pressing method” boosts the magnetic force of neodymium magnets even higher. This is a manufacturing method designed to strengthen magnetic force even further by arranging the orientation of magnetic powder particles parallel in directionality from the N pole to the S pole of the magnetic field that magnetizes the particles. Longitudinal magnetic field Transverse magnetic field6 (GB) Enabling both high sound quality and miniaturization: Driver unit-integrated housing In order to miniaturize and thin the housing, a structure that integrates the driver unit and housing was implemented. In addition to cutting unwanted air leakage generated from slight gaps between the components, this also suppresses unwanted vibration and actualizes a smooth response at low pitch frequencies.7 (GB) Front register Mainly to balance bass. Earbud Equalizer Mainly to balance midrange and treble. Front housing Liquid Crystal Polymer film diaphragm Pole piece 440 kJ/m

Neodymium magnet Driver register Mainly to balance midrange and bass. Rear housing Rear register Mainly to balance midrange and bass. Headphone component diagram Frame Magnesium alloy housing Regulator Mainly to balance midrange and bass.8 (GB) Adjusting sound quality for each set by hand: Sony original acoustic tuner In addition to measuring each set meticulously during the manufacturing process, adjustment of acoustic resistance material to constant values is also performed by hand. To achieve ideal characteristics, only items that clear strict sound control requirements are shipped. Persistent detailed tuning with precision controlled acoustic tuning components and original Sony acoustic tuners ensure sound quality control at a level of precision higher than ever before. Suppressing transmission loss of music signals: High grade 7N-OFC Litz cord The cord for transmitting the signal uses grade 7N OFC (Oxygen Free Copper) of extremely high purity (99.99999 %). Suppressing signal loss in the cord minimizes sound degradation.9 (GB) The ultimate in sound insulation: Noise isolation earbud Pressure-relieving urethane foam inside the earbud equalizes pressure to the ear canal and complements the complex bumps and dips of the inner-ear. Due to this, sound insulation is increased with a fit that exceeds the comfort of previous earbuds. Noise isolation earbud cross section Low-density silicone High- density silicone Pressure-relieving urethane foam10 (GB)

Actualizing a superior fit with a large caliber driver unit: Closed-type vertical in-the-ear method In using a 16 mm diameter large caliber driver unit, a closed-type vertical in-the-ear method wherein the driver unit is positioned perpendicularly to the external ear canal was incorporated. And, in order to absolutely minimize the thickness of the housing, which impacts the fit of the headphones, a high strength magnesium alloy for the housing was used. This let us shave over 30% off the thickness compared to housings that use common resin material.11 (GB) Magnesium alloy housing before coating Physical properties of magnesium Magnesium Aluminum Iron ABS Specific gravity 1.82 2.7 7.86 1.03 Specific strength 154 1.7 66 3412 (GB) Actualizing a highly stable fit for individual ear shapes: Flexible ear hanger using TEKNOROTE™ For the hanger component, TEKNOROTE™, a plastic material that folds freely and maintains its shape was used. Because this material can alter the hanger shape to fit each individual ear, a superior fit stability is achieved. Also, TEKNOROTE™ provides a comfortable and safe fit because it is lighter and more difficult to snap.

• TEKNOROTE is a trademark of Mitsui Chemicals, Inc.13 (GB) Selectable by ear size: 7 hybrid silicone rubber earbuds Newly developed, hybrid silicone rubber earbuds combine silicone of two different hardness levels. This new design maintains the shape of the earbud tips where sound exits by making the core firm, preventing sound quality deterioration via squeezing of the earbud tips. The outer portion is soft, and this improves fitting to the outer ear canal. Overall, the earbuds have increased enclosure and provide a more comfortable fit even during long usage periods. 7 earbuds are included to fit different ear types. Hybrid silicone rubber earbud cross section Low hardness silicone High hardness silicone Earbud size Small Diameter Large – ML (blue)