Stax SR-009S Reference Earspeaker
SKU: 6701554107

Stax SR-009S Reference Earspeaker

Sale price$3487.50 Regular price$3875.00
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Stax SR-009S Reference EarspeakerSTAX SR 009S (new flagship) Multilayer fixed electrode MLER (Multi Layer Elect Rords) established with SR 009 has evolved to MLER 2. The finish and etching process that smoothes the edge of the electrode opening reduces air resistance and further improves sound permeability. Also, the electrodes themselves are gold plated with high specific gravity to minimize the resonance of the ultra thin electrode. At the same time, due to the effect of reducing

STAX SR-009S (new flagship)

Multilayer fixed electrode MLER (Multi-Layer-Elect-Rords) established with SR-009 has evolved to MLER 2. The finish and etching process that smoothes the edge of the electrode opening reduces air resistance and further improves sound permeability. Also, the electrodes themselves are gold plated with high specific gravity to minimize the resonance of the ultra-thin electrode. At the same time, due to the effect of reducing the electric resistance of the electrode itself by gold plating, we have opened up a new ground for high speed, clarity, silky details, and powerful texture.

SR-009S adopts a diaphragm made of ultra-thin super engineering plastic film. The light mass has realized a high transient characteristic throughout the entire audio spectrum.

The main body was redesigned to further reduce resonance as to provide a consistent sound.

ENCLOSURE:
Aluminum is a metal good for sound and suitable material for audio equipment. It is abundantly used, e.g. at the frame supporting the appearance and sound element, to realize high-quality sound, rigidity and lightweight. Almost every part of the SR-009 is manufactured through precise machine processing.

CABLE:
The high-purity copper developed from the necessity of wiring large-scale integration circuits is also known as high-quality audio cables. High-purity copper wire of 99.9999% (6Nines) purity adopted for the cable is further silver-coated and finished with the most suitable structure to drive the earspeaker.

EARPAD:
The earpad of a new design is carefully made by a craftsman's hand and features both the real leather with good humidity environment and the cushion material with moderate elasticity.

The new earpad enables hours of comfortable listening to music.

ARC (head band):
The arc is equipped with a position adjustment mechanism of 10-step slider and corresponds to the wide range of cranial form with individual difference.

SR-009S SPECIFICATIONS:

Type: Push-Pull Open Back Circular Electrostatic Headphone

Frequency Response: 5 - 42,000Hz

Electrostatic Capacitance: 110pF (including cable)

Impedance: 145k Ω (including cable, at 10kHz)

Sound Pressure Sensitivity: 101dB / 100V r.m.s. 1 kHz

Maximum Sound Pressure: 118dB / 400Hz

Bias Voltage: 580V DC

Left & Right Identification: "L" and "R" indicated on the arc assembly (inside head spring) Left channel cable is marked with a solid Line. Right channel is marked with a dotted Line.

Ear Pads: Genuine Lamb Leather (direct skin contact), high-quality synthetic leather (surrounding portion)

Cable: Silver-coated 6N (99.9999%) OFC parallel 6-strand, low-capacity special wide cable, 2.5m full length

Weight: 1lb without cable / 1.3lb with cable

Specifications and appearance are subject to change for improvement.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 6701554107

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Product Reviews
J
Verified Purchase
Jim N.
Omaha, US
★★★★★ 5
Great chair
Color: Brown
Love this chair. Very comfortable and supportive. Color matches my leather couch perfectly. Time consuming to put together.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
L
Verified Purchase
Langle
San Leandro, US
★★★★★ 5
Beautiful and very steady office chair
Color: Brown, Color: Brown
Beautiful, Ergonomic, and very steady for this good quality leather office chair. The side armrests and the back support are very comfortable to seat. The assembly instruction and illustrated photos are quite simple to follow which make ease of assembly. I got the brown color leather which matches perfectly with my desk. Overall , I am very please with this office chair
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
S
Verified Purchase
Santiago
Grantham, US
★★★★★ 5
Excellent materials
Number of Items: 2
Incredible craft with this chair. For the price point it could definitely be over double the current price. Comfortable, easy to assemble and excellent materials.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
B
Verified Purchase
blqwlf
West Palm Beach, US
★★★★★ 5
A good value for the money.
Number of Items: 1
Chair was very easy to assemble. It is a lightweight chair but not cheap. I find it comfortable and the controls work well. Extra bolts are provided which is a great feature. I find the adjustable back support excellent, the head rest moves a little to easily, but it is easy to adjust while sitting.
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Reviewed in the United States on March 26, 2026
J
Verified Purchase
JJ
New York, US
★★★★★ 4
Overall good chair for a good price
Number of Items: 1
Comfortable chair, but there's a very slight lean. I haven't yet managed to track down what's causing it, but as I slowly spin around, I find myself tilting slightly forward, then left, then back, then right... I've removed the casters and then removed/reinstalled the "ring" of legs, so the next place to check is the connection between the post and seat.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026

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