Stax SR-009s
STAX International
Room 2101, 21st floor, The L. Plaza, 367-375 Queen´s Road, Central - Hong Kong
enquiry@staxheadphones.com
www.staxheadphones.com
Responsible in the EU:
ATR Audio-Trade Hi-Fi - Vertreibsgesellschaft mbH
Villa Belvedere, Wallufer Straße 2, 65343 Eltville am Rhein, GERMANY
stax@audiotra.de
Open Back Electrostatic Headphones
All Stax headphones and in-ear-phones are electrostatic and operate with a push-pull principle. This means that they need to be operated by a Stax amplifier.
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Sound element with new fixed electrodes
If the fixed electrode becomes infinitely thinner, the air resistance will be de- creased and the permeability of sound waves will be improved. On the other hand, thinner electrodes are poor in rigidity and suffer from vibrations of their own and the sound becomes muddy.The SR-009S evolved further the electrode established in the SR-009 as the integration of presenttechnology.
The edges of electrode hole were smoothened through after-etching processing to reduce air resistance, and the permeability of sound has been much more improved. Moreover, gold plating processing with large specific gravity further decreased the electrode vibration. Finally, the sound clarity has been achieved by reducing the resistance of electrode itself.
Tough solid aluminum chassis
It employed secures firmly the sound element, con- tributing to improve the clearness of sound. Furthermore, the case thickness has been reduced to the limit, making the flow of condensation-and-rarefaction air wave from the sound element more smooth.
New designed guard mesh
Intensity has been increased by giving roundness to the "guard mesh” of sound element, which lowered the influence of reflection and improved the resolu- tion of sound.
Technical Data
Type: Frequency response: Electrostatic capacitance: Impedance: Sound pressure sensitivity: Bias voltage: Right/left channel indication: Earpad: Cable: Weight: |
push-pull electrostatic large circular sound element, open-air type enclosure 5 – 42,000Hz 110pF (including cable) 145kΩ (including cable, at 10kHz) 101dB / input 100Vr.m.s. / 1kHz DC580V Golden solid line (left) and dotted line (right) on the cable Genuine leather (skin touching portion), high-quality artificial leather (surrounding portion) Silver-coated 6N (99.9999%) OFC parallel 6-strand, low-capacity special wide cable, 2.5m full length 583g (including cable), 441g (without cable) |