Certified Pre-Owned Stax SR-009 Open Back Headphones

In Stock	An In Stock item is available to ship normally within 24 business hours.
Preorder	A Preorder is an item that has not yet been released. Typically the label will set a projected release date (that is subject to change). If a projected release date is known, we will include this in the description in red. Other Preorders are set to release 'TBA.' This means that release date is yet 'To Be Announced'. The Preorder can be released anywhere between weeks, months or years from its initial announcement.
Backordered	An Out Of Stock item is an item that we normally have available to ship but we are temporarily out of. We do not have a specific date when it will be coming.
Awaiting Repress	Awaiting repress titles are in the process of being repressed by the label. No ETA is available at this time.
Expected On	When an item is Out Of Stock and we have an estimated date when our stock should arrive, we list that date on our website in the part's description. It is not guaranteed.
Special Order	A Special Order item is an item that we do not stock but can order from the manufacturer. Typical order times are located within the product description.

In Stock

An In Stock item is available to ship normally within 24 business hours.

Preorder

A Preorder is an item that has not yet been released. Typically the label will set a projected release date (that is subject to change). If a projected release date is known, we will include this in the description in red. Other Preorders are set to release 'TBA.' This means that release date is yet 'To Be Announced'. The Preorder can be released anywhere between weeks, months or years from its initial announcement.

Backordered

An Out Of Stock item is an item that we normally have available to ship but we are temporarily out of. We do not have a specific date when it will be coming.

Awaiting Repress

Awaiting repress titles are in the process of being repressed by the label. No ETA is available at this time.

Expected On

When an item is Out Of Stock and we have an estimated date when our stock should arrive, we list that date on our website in the part's description. It is not guaranteed.

Special Order

A Special Order item is an item that we do not stock but can order from the manufacturer. Typical order times are located within the product description.

Description

90 day warranty included with these Certified Pre-Owned headphones!

The STAX SR-009 Open Back Headphones feature a vast dynamic range, excellent tone quality and frequency characteristics from low to super-high! STAX Authorized Web Dealer!

This item not eligible for any further discount offers.

The STAX SR-009 Open Back Headphones feature a newly developed Diaphragm with Super Engineering Plastics, Electrodes with Multi Layer Electrodes (MLER), Light Weight Aluminum Enclosure, Hand-Crafted Lamb Leather Earpads and 10-Click Slider Headband.

The Stax SR-009 is one of, if not the best all-around headphone I have owned or heard. I own many of the vintage (Sennheiser HE90, Stax SR-Omega, Stax SR-007 Mk 1&2, Sony MDR-R10) and some great modern production (Sennheiser HD-800, Audeze LCD-2 r2) high-end phones. While all of these phones are excellent and excel in certain areas, the SR-009 is very competent in all places, from Classical to Rock. The sound is engaging and musical, making me forget the headphones at times. Bass is tight and quite deep, vocals realistic, highs defined but not harsh. The fit and finish are also top notch, very comfortable to wear for extended listening. Stax has a real winner in the SR-009.
-Andrew K., actual Elusive Disc customer

Particular attention has been paid to the rigidness and stiffness of structure of the STAX SR-009 Open Back Headphones. New MLER electrode in the diaphragm is a complicated manufacturing process where 3 layers are assembled together by a heating process.

STAX Japan had a special public listening event and reports are as follows

The tonal balance is different from the Omega 2 series, the SR-009 is tonally neutral! Very present top end without etch-sound, tight bottom, fast, quick sound and dynamics are improved! Overall... people were very impressed!

Diaphragm

Newly developed sound element has been adopted in the STAX SR-009 Open Back Headphones. This new High Polymer Ultra-Thin Film Material is called Super Engineering Plastics. Super Engineering Plastics is a reinforced and much thinner material than conventional engineered plastics which is used for the diaphragm of the sound element. This and other superior materials have been selected which result in a vast dynamic range, excellent tone quality and frequency characteristics from low to super-high!

Electrodes

New electrodes called MLER (Multi Layer ElectRodes) have been developed, using ultra-precision photo etch and high tech heat diffusion, to realize the plane drive of the whole film diaphragm surface. While infinite thinness and flatness are required for the fixed electrodes, they simultaneously need to have other characteristics such as low resonance, high transmissivity of sound wave, and so on. These entirely new electrodes have been completed through the unification of metal plates processed with ultra-procision phtograph etching using the high technology of heat diffusion combination on the atomic level.

Enclosure

Precision Machined Light-Weight Aluminum is used to help realize high-quality sound and rigidity.

Cable

Silver plated, High Purity Copper Wire 99.9999% (Audiophile Grade)

Earpad

Newly designed, Hand-Crafted Lamb Leather is used for the earpads for hours of comfort.

Headband

Newly designed 10-click slider mechanism for optimal wear and comfort. (Also used on the STAX SR-507 Lambda Open Back Headphones)

Technical Specifications

Type

Push-pull electrostatic circular sound element, open-air type enclosure
Frequency Response	5-42,000Hz
Capacitance	110pF (including cable)
Impedance	145kohm (including cable at 10kHz)
Sound pressure sensitivity	101dB / input 100Vr.m.s / 1kHz
Max sound pressure level	118dB / 400Hz
Bias voltage	580V DC
Earpad	Genuine leather (Lamb)
Cable	Silver-plated 6N (99.99999%) OFC low-capacity wide cable 2.5m
Weight	596g, (454g without cable)