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Otherwise just DKK 29 for shipping.
30-day returns
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2-year warranty
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STAX SR-X9000 is an open-back electrostatic ear speaker for those who want to get close to the finest details of music. STAX combines its MLER-3 electrode technology with a larger diaphragm, a rigid aluminum enclosure, and a design that limits unwanted reflections around the driver.
MLER-3 – precision in four layers
At the heart of the SR-X9000 is the rigid MLER-3 (Multi Layer Electrodes) electrode. It consists of four layers and combines metal mesh with thermocompression bonding, a technique further developed from the SR-009 and SR-009S. The design provides high rigidity and great openness, allowing the sound to pass through with fewer obstructions.
Larger diaphragm and fast transient response
The ultra-thin diaphragm is made of super engineering plastic film with very low mass. This supports the fast transient response that characterizes electrostatic drivers. The diaphragm area is approximately 20% larger than in the SR-009S and contributes to a spacious reproduction.
An open design with fewer reflections
The driver is housed in a precision-machined aluminum enclosure, which provides stable mounting and reduces unwanted vibrations. The outer guard mesh is angled so that it is not parallel to the driver. Together with differently shaped supports at the front and back, it helps to limit sound reflections.
Comfort for long listening sessions
The headband features a stainless steel arc assembly and a genuine leather head pad. Nine adjustment steps make it possible to customize the fit. The large ear pads have genuine sheepskin on the contact surface against the head and artificial leather on the other surfaces.
Detachable cable
The SR-X9000 uses a detachable cable with 6N (99.9999%) OFC and silver-plated annealed copper. The flat cable is designed with low capacitance and can be replaced as needed.
The SR-X9000 must be used with a compatible STAX PRO-bias electrostatic energizer with 580 V bias. It cannot be connected directly to a regular headphone amplifier.
See the SR-X9000 in more detail
Specifications
- Type
- Push-pull electrostatic earspeaker, open-back
- Driver
- Large, round electrostatic sound element
- Fixed electrode
- MLER-3 (Multi Layer Electrodes), four layers
- Frequency response
- 5–42,000 Hz
- Capacitance
- 110 pF
- Impedance
- 145 kΩ
- Sensitivity
- 100 dB
- Bias voltage
- 580 V DC (STAX PRO)
- Cable type
- Detachable, flat cable
- Cable conductor
- 6N (99.9999%) OFC + silver-plated annealed copper
- Cable lengths
- 2.5 m and 1.5 m (standard cables for the model)
- Ear pads
- Genuine sheepskin on the contact surface; faux leather on the remaining surfaces
- Headband
- Stainless steel, genuine leather head pad, nine adjustment positions
- Weight
- 432 g (earspeaker)
Reviews


HiFi Pig – STAX at the highest level

Audiophile Style – wide soundstage and natural sound

What Hi-Fi? – hard to stop listening

Try the equipment at home!
30 day return policy
At Head Audio, we know how important it is that you can try and test the products in your own living room. That's why you can return the goods to us for up to 30 days after purchase if you regret your purchase.
We ship for free (for purchases over DKK 2500)
So if you're dreaming of a new hi-fi system, there's no need to wait - it's completely risk-free and you can hear the sound of your new gear in your own living room and together with your other equipment.







