Sony

Beyerdynamic

IER-Z1R

T1 High-End Tesla

Wired Headphone Specification

Wired Headphone Specification

In Ear

Over Ear

Dynamic

Dynamic

12 mm

40 mm

40 Ohms

32 ohm

103 dB / mW

100 dBSPL

3Hz - 100KHz

5Hz - 50KHz

NA

300 mW

NA

‎Sound Noise Isolation

Black, Silver

Black, Grey

3.5 mm

3.5 mm Gold-Plated Mini Stereo Jack

4.4 mm Standard Balanced Connection Cable

Double-Sided Cable

26 GM

360 GM

Expertly crafted in Japan.
In pursuit of perfect sound.
For deep bass and fine details.
Naturally controlled acoustics.
Balanced connection available.
A perfectly straight sound path.
Faithfully reproduce every note.
Originally designed to make you feel.
Silk insulator and non-magnetic plating.
Silver-coated oxygen-free copper cable.
Quality cable for preserving signal purity.
Audio grade capacitor without distortion.
Sound Space Control for wide sound space.
Refined-phase structure for extensive sound.
Hear everything with a frequency response to 100 kHz.
Refined-phase structure for accurate acoustic blending.
HD hybrid driver system ( 2 dynamic 1 Balanced Armature ).
4.4mm balanced, and conventional 3.5mm, connection cables supplied.
Optimized for High-Resolution Audio reproduction.Specific uses for product : Music.
Product Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ears.

Replaceable ear pads.
Handcrafted in Germany.
Optimum sound neutrality. 
Tesla technology for maximum efficiency.
High-quality housing cover made of stainless steel.
Double-sided, detachable audiophile connection cables.
Breathable, replaceable velour ear pads with memory foam.
Tilted Tesla drivers ensure a precise and spatial sound signature.
High-end stereo headphones for sophisticated music enjoyment at home.
Open-back design for optimum spatial perception, particularly suitable for quiet surroundings.
Double-sided, detachable connection cable made from ultra-high-purity OCC7N copper and covered with fabric.