STAX SR-009S Reference Electrostatic Earspeaker

Description:

Key features

• Open-air design
• Diaphragm made of ultra-thin super engineering plastic film
• High-quality audio cables
• High-purity copper wire of 99.9999%
• Almost every part of the SR-009 is manufactured through precise machine processing

What is it?

Stax was formed in 1938 in Japan and in 1960 they released their first
electrostatic Headphone or ‘Earspeaker’ as they are better known. Being an
electrostatic design, a Stax Earspeaker requires an energiser unit to drive
them making it a complete package. Over the last 50+ years Stax have refined
their designs making them the leaders in electrostatic headphones and arguably
the leaders in high performance headphones today.

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.

How does it work?

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 t