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The STAX SR-007MK2 headphone is the updated version of the classic SR-007 “Omega II”, with a black finish and slightly different driver. The sound is the warmest, lushest sound of any STAX with an emphasis on the mid-to-lower frequencies without a loss of high end detail. It is a more relaxed sound signature compared to the more detail-forward SR-009 models. Like the SR-009s, we recommend our Blue Hawaii SE to amplify your SR-007MK2, to hear the very best of what they are capable of as a demanding, large-driver electrostatic.
When STAX engineers in Japan set out to design the STAX SR-007MK2 Earspeaker (sometimes called the SR-007A Omega MKII) the rationale was to provide deep powerful sound previously unobtainable in Earspeakers. STAX engineers developed a unique new electrode structure. Visible through the outer case, gold plated on the outer edge this new electrode has less holes than conventional STAX Earspeakers and thus provides an increased diaphragm vibration area allowing for rich and powerful sound yet retaining all the delicacy STAX is famous for.
To maintain clear distortion free sound it is most important that nothing other than the diaphragm should vibrate. Within the STAX SR-007A Omega MK II the sound element is encased in a thick insulated resin case firmly fixed to the rigid body. The results are nothing short of spectacular.
Utmost comfort for maximum enjoyment of your STAX SR-007A Omega MK II is provided with earpads that are fully adjustable to the shape of your head. Stax Japan refers to its electrostatic headphone designs as “Earspeakers.” The electrostatic transducer in a Stax Earspeaker consists of two “parallel-arranged fixed electrodes,” between which is suspended a low-mass, high-polymer film that is less than 2µm thick. Simply put, it’s a push-pull driver system. When the fluctuating voltage of the audio signal is applied to the electrodes, as in a Martin Logan speaker, the diaphragm is pulled and pushed.
The 007A Omega II Mk2 Headphones include a deluxe ATA Style Padded Flight Case with Gold STAX faceplate. This rigid case provides the ultimate in protection for your 007’s no matter what the environment!
Setting a section without any holes whatsoever on the perimeter of the electrodes makes it possible to achieve a deeper and more dynamic expressive capacity. There is strong drive power in respect to the diaphragm, and a high degree of linearity is achieve in the opening section too.
As is the case with ordinary speaker systems, the sturdiness of the enclosure is important for earspeakers. After enclosing the sound-producing unit in a thick insulated resin case, it is fixed to a solid metal enclosure. All unnecessary vibration is excluded.
A structure is adopted whereby the enclosure and the earpads are able to rotate independently. This enables positioning that exactly fits the shape of the ears.
An original cable developed with the aim of achieving an even higher level of reproduction is provided. The conductors make use of high-purity PC-OCC. Outstandingly high sound quality is achieved because of the wide ribbon and low capacitance.
● Type: Push-pull electrostatic open-air type headphone
● Frequency response: 6 to 41,000 Hz
● Impedance: 170 KΩ (at f = 10 KHz)
● Capacitance: 94pF (including cable)
● Sensitivity: 100 dB / 100 V r.m.s. at f = 1 KHz
● Bias voltage: 580 V / DC
● Left & Right Channel identifications: Left (L) and Right (R) indicators are provided at the cable en trance points on the Earspeakers.
The left channel cable is marked with a solid Line.
The right channel is marked with a dotted Line.
● Ear pads: Real leather (Lamb) used on a part coming into contact with the skin.High-quality leather used for the surrounding part.
● Operating temperature range: 0 to 35
● Humidity range for use: Less than 90% (without condensation)
● Cable: 2.5m, PC-OCC, wide, low capacitance cable
● Weight: 365 g (Body) , 512g (Including cable)
STAX produce exclusively electrostatic headphones, or “earspeakers” as they call them, in Japan, since 1938. STAX chose the electrostatic technology for its ability to produce transparent sound, and low weight for comfort/ergonomics, both due to the driver design not employing fixed magnets and moving coils, as opposed to other common headphone driver designs. The minimal weight of the driver ensures a very quick response to the signal, creating a more faithful sound reproduction.