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Sony IER-Z1R Signature Series In-Ear Headphones

For High-Resolution Audio Reproduction
2 Dynamic/1 Balanced Armature Drivers
Naturally Controlled Acoustics
Refined-Phase Structure

£1,410.00 £1,250.00


The IER-Z1R Signature Series In-Ear Headphones from Sony features the highest quality analog and digital technologies, a HD hybrid driver system (2 dynamic/1 balanced armature), a refined-phase structure, along with the sonic purity of a 4.4mm balanced audio connection to elevate your listening experience to one you can feel.

The IER-Z1R headphones are equipped with a frequency response of 3 Hz to 100 kHz and are built to reproduce every note. Inheriting the MDR-Z1R’s diaphragm structure, the 12mm dynamic drivers offer deep bass and fine mid-high sound. The super tweeter is on a coaxial position against the nozzle, which delivers accurate super-high notes to your ears with an extra-wide frequency response.

Other features include: naturally controlled acoustics that steers audio from the trio of driver units as though they were a single driver, sound space control for wide sound reproduction, and silver-coated, oxygen-free copper cables for less sound degradation.

In addition, the silk insulator and non-magnetic plating in the cables helps to reduce touch noise and act as an insulator against vibration. Using twisted pair wiring and non-magnetic undercoat for gold plating on the plugs ensures clean signal transmission.

In Pursuit of Perfect Sound

Every element of the IER-Z1R headphones has been designed and developed for delivering a natural sound. By paying attention to the smallest details, the headphones can reproduce every nuance and subtle characteristic of your music.

Designed to Make You Feel

Built from the ground up, the drivers are designed to work in total harmony. The sound signature is carried out across each driver as if they were a single driver.

Extended Frequency Response to 100 kHz

The super tweeter in the IER-Z1R was developed to deliver ultra-high frequency extension with an aluminum-coated LCP diaphragm and external magnetic circuit. Its ultra-fast response follows the fast dynamic transience of music, which provides you with live concert hall atmosphere.

Faithfully Reproduce Every Note

The high-definition balanced armature driver is equipped with a magnesium diaphragm, silver-coated copper voice coil, and gold-plated terminals that reproduce even the smallest fading note.

Deep Bass and Fine Details

Inheriting MDR-Z1R’s diaphragm structure, the 0.47″ dynamic driver’s diaphragm consists of a magnesium dome and aluminum-coated LCP. This full-range driver offers deep bass and fine mid-high sound.

Audio Grade Capacitor without Distortion

Developed from thousands of listening tests, the dedicated film capacitors on the network give much lower distortion. Audio grade solder is also used throughout to ensure maximum signal transparency.

Straight Sound Path

The super tweeter is on a coaxial position against the nozzle. This layout directly delivers accurate super-high notes to your ears with an ultra-wide frequency response up to 100 kHz.

Naturally Controlled Acoustics

The finely tuned IER-Z1R acoustic structure steers audio from the trio of driver units as though they were a single, ideal driver.

Refined-Phase Structure

Time coherence of the sound from the three drivers is just as important as their wide frequency response. The refined-phase structure ensures sound waves are aligned. The magnesium-alloy construction also further eliminates vibration and unwanted resonance to deliver clarity and liveliness across musical genres.

Quality Cable for Preserving Signal Purity

The supplied cable helps release the full potential of the IER-Z1R. From sound quality to comfort and less touch-noise, the cable helps you immerse yourself in music on the go.

Wide Sound Space

For balanced sound, from low to high frequency, an acoustic tube connects to the cavity behind the driver unit. This technology presents a wide sound space with rich and natural notes.

Balanced Connection Available

The IER-Z1R in-ear headphones come with a 4.4mm standard balanced connection cable that separates left and right signals completely. This minimizes cross-talk that results in sound deterioration. A standard 3.5mm cable is also included for use with most smartphones and tablets.

Silver-Coated, Oxygen-Free Copper Cables

The silver-coated, oxygen-free copper wire is designed to minimize resistance and signal-transmission loss. The result is less sound degradation, finer detail, and smoother treble sounds.

Silk Insulator and Non-Magnetic Plating

Silk braid in the supplied cable reduces touch noise and works as an insulator against vibration. Using twisted pair wiring and a non-magnetic undercoat for gold plating on the plugs ensures legato and clean signal transmission.
Earpiece Design In-Ear (Intra-Aural), Closed-Back
Earpiece Connection / Wearing Style Ear Clip
Foldable Not Specified by Manufacturer
Driver Type Dynamic, Balanced Armature
Driver Size 0.47″ / 12 mm
Diaphragm Aluminum, Aluminum-Coated
Impedance 40 Ohms
Active Noise Cancellation No
Frequency Response 3 Hz to 100 kHz (Wired)
Sensitivity 103 dB
Wired Connectivity
Audio Connector to Source 1 x 1/8″ / 3.5 mm TRS Male Straight
1 x 4.4 mm Male Straight
Connector Plating Gold
Cable Design Y-Type
Audio Connector to Earpiece 1 x MMCX
Cable Length 48″ / 121.92 cm
Cable Conductor Material Oxygen-Free Copper, Braided
Weight Headphones:
0.9 oz / 26 g (without Cable)
Packaging Info
Package Weight 2.59 lb
Box Dimensions (LxWxH) 6 x 5.8 x 5.6″


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