Friday, August 10, 2018

Sony Enters the In-ear Stage Monitor Headphones Market with IER-M9 and IER-M7

Sony introduced two new premium in-ear stage monitor headphones, the IER-M9 and IER-M7. Both in-ear stage monitor headphones are able to provide the best tonal balance for monitoring your play on stage with absolute sound isolation and a stable fit to avoid the headphones falling off during performance. The headphones are developed to monitor even musical expression with addition to tone color and rhythm. With the IER-M9 and IER-M7, audiophiles will also be able to experience first-hand this musical expression tuned for professionals.

Multi Balanced Armature (BA) system for achieving the best tonal balance for stage monitoring
Sony’s newly developed multi BA system gives musicians an edge of feeling the rhythm and pitch of the music as well as those detailed nuances during live performances. With Sony’s unique driver design, these headphones have the ability to reproduce tone that is true to the original sound. This allows musicians to monitor the sound balance of their own performance on stage. The IER-M9’s Penta BA driver system (5 BA / 5 way) includes a super tweeter while the IER-M7 has a Quad BA driver system (4 BA / 4 way). Since the sound quality of a driver unit is critical and consistency of sound signatures between BA units is important to harmonise tonal balance, Sony developed each driver unit in-house based on years of expertise.

Sony-developed BA unit

The Sony-developed BA unit has two major structures: a direct drive structure or a T-shaped armature. Sony has developed the direct drive structure which sees the armature, being able to efficiently drive the diaphragm directly, thus delivering oscillation of the armature linearly. As for the T-shaped armature, it has a symmetrical vertical motion delivering linear response. These two structures bring high definition sound required for monitor use.

Magnesium alloy inner housing
A magnesium alloy inner housing holds the BA units firmly in place and eliminates unnecessary vibration for low distortion and resonance to deliver crystal clear sound without compromising quality.

Housing integrated sound path
IER-M9 and IER-M7 has an outer housing moulded sound path. The sound path realizes ideal frequency response with its short and wide sound path that supress peaky acoustic resonance.

Designed with High Grade Parts
Sony’s dedicated audio grade film capacitors for crossover network circuits were used on both the IER-M9 and IER-M7 to deliver a refined sound with low distortion.

Features which ensure isolation and stability
Using decades-worth of research collected on ear-shapes, the outer housing shape is designed to isolate noise and have a stable fit. For optimal sound isolation, the housing has a firmly-closed noise blocking structure that shuts out external sounds from the eardrum. 13 variations of ear buds (six variations of triple comfort ear buds and seven variations of hybrid ear buds) and pre-formed ear hangers hold the headphones firmly.

Discover a new realm of musical expression on stage with the IER-M9
IER-M9 allows artists to discover a new realm to express their music by faithfully reproducing even the most subtle musical nuances, bringing out sounds for more precise monitoring. The IER-M9 features a Super Tweeter with magnesium alloy diaphragm, Penta BA system in a magnesium alloy inner housing, and a housing-integrated sound path made of a light and durable magnesium alloy outer housing.

IER-M9’s newly developed super tweeter
The newly-developed super tweeter in the IER-M9 features a magnesium alloy diaphragm for rigidity and high internal loss. Gold-plated terminals and silver-coated copper voice coils are included to raise the driving force of the super tweeter. These materials work in symphony to faithfully reproduce sound without losing even a micro signal. It ensures low distortion for a rich yet clean sound. The IER-M9 offers a precise reproduction of higher order harmonics with an optimal sound design allowing the artists to discover a new realm of musical expression on their stage.

High-quality supplied cable
The supplied cables feature natural silk threads as its insulator and damper against vibration and touch noise. These cables utilize a non-magnetic material as undercoat for the gold plating of the plug and terminal, ensuring natural flow of music and clean crisp sounds. Silver coated OFC (Oxygen-Free Copper) conductor helps to reproduce detailed sound without loss of quality. A 4.4mm balanced standard cable is also included.

IER-M7 evolves musical expression with accurate tone balance

Promising a sound that improves the performance of musicians, the IER-M7 features the Quad BA system, a magnesium alloy inner housing, a brass sound path, and high-quality network circuits.

High-sound quality balanced connection is achieved with the supplied 4.4mm balanced standard cable or the use of similar optional cables. Silver-coated OFC (Oxygen-Free Copper) is used in both supplied cables.
The IER-M9 and IER-M7 will be available in selected Asia Pacific countries from August 2018.

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