Stax SR-X9000 Ear Speaker

The SR-X9000 is Stax's new flagship.
The SR-X9000 uses the new 4-layer MLER3 fixed electrode, which is stiffer and causes less vortices and resonances.
The airflow of the 20% larger but ultra-light membrane is less affected by this new production technique.
Also, the cover plate of the Stax SR-X9000 is placed at a small angle, so that reflections in the aluminum housing are minimized. In the all-important mids and highs, this results in an even cleaner and more natural sound.

In addition, the bass is more powerful and runs deeper, partly due to the larger membrane.
The fully adjustable headband is largely made of stainless steel and allows a little more torsion, which increases comfort in combination with the sheepskin ear cushions. The Stax SR-X9000 comes with 2 interchangeable cables made of silver-plated 6N pure copper, with a length of 1.5 and 2.5m and a case that is optimal for storing the headphones.

Specifications:
Type: Push-Pull Electrostatic, Back Release Type Enclosure
Fixed electrode: MLER-3
Frequency range: 5 Hz to 42 kHz
Capacitance: 110 pF
Impedance: 145 kOhm (10 kHz including / 2.5 meters extra cable included)
Sound pressure sensitivity: 100 dB / 100 Volt RMS input / 1 kHz
Bias voltage: DC 580 Volt
Cable Conductor: 6N (99.9999%) OFC + Silver Plated Annealed Copper Wire
Cable Form: Parallel 6-core, wide, low-capacity cable, 2.5 meters, 1.5 meters
Cable marking left and right: golden