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SR-007 "Omega II" Open-Back Electrostatic Earspeaker |
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The rationale is the development of the new SR-007 Earspeaker 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 increases diaphragm vibration area allowing for rich and powerful sound yet retaining all the delicacy STAX is famous for. |
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To maintain clear distortion free sound it is most important that nothing other than the diaphragm should vibrate. Within the STAX SR-007 the sound element is encased in a thick insulated resin case firmly fixed to the rigid body. The results are nothing short of spectacular. |
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Utmost comfort for maximum enjoyment of your STAX SR-007 is provided with earpads that are fully adjustable to the shape of your head. |
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| Type |
:Push-Pull Electrostatic Earspeaker |
| Frequency Response |
:6 - 41,000Hz |
| Impedance |
:170k Ohms (10kHz) |
| Sensitivity |
:100dB / 100V r.m.s. 1 kHz |
| Bias Voltage |
:580V DC |
| Left & Right Channel Identification |
:Left (L) and Right (R) indicators are provided at the cable entrance points on the Earspeakers. Left channel cable is marked with a solid Line. Right channel is marked with a dotted Line. |
| Ear Pads |
:Crafted from high quality artificial leather for durability and comfort. |
| Cable |
:Low capacity wide format, PC-OCC (Pure Crystal Ohno Continuous Casting) 2.5m/8.2ft |
| Ambient Temperature & Humidity |
:0 to 35ºC / 90% max. without condensation |
| Weight |
:12.9oz without cable / 1.1lbs with cables |
| SR-007 Earspeaker |
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SRM-727II Full Range High Output Solid-State Driver |
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The SRM-727II features non-feedback (NON-NFB) output stage for the first time ever in STAX drivers. Large current emitter follower Class A amplification circuit. This makes it possible to achieve a much more vivid and dynamic sound quality with frequency response raised to 115kHz. (from 100kHz) |
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A newly designed front panel with rounded corners in brushed finish. Available in Silver or Black |
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The electrostatic method is a playback method which involves the installation of drive electrodes on either side of a high-polymer film diaphragm with a thickness of only a few microns into each of which a plus signal and a minus signal are fed. This means that XLR connection with a pure balance output CD player makes it possible to listen to the original sound permitted by the balance system without a conversion circuit. |
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Careful selection of parts with high consideration on sound quality, performance, and the environment. Low noise FET is used at the input stage with a simple two-stage amplifying circuit. A natural and pure sound quality with high information quantity. |
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SRM-727II provides a bypass mode that enables "direct" connection to preamplifiers, passive volume controls or integrated amplifiers and receivers with Pre-out. A direct switch that avoids duplication of volume control. |
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| Type |
All-stage semiconductors Low noise dual FET input NON-NFB Class A operation, Pure balance DC amplifier configuration Earspeaker driver unit |
| Frequency Response |
:DC to 115,000Hz w/ either SR-007 or SR-404 |
| High Frequency Distortion |
:Max. 0.01% (with 100 to 10kHz, 100V r.m.s. output) |
| Gain |
:54dB (x500) |
| Input Terminal |
:RCA or XLR with 1 RCA parallel out |
| Rated Input Level |
:200mV (with 100V output) |
| Input Impedance |
:50Kohm (RCA), 50kohm x2(XLR) |
| Max. Output Voltage |
:450V r.m.s. (1kHz) |
| Standard Bias Voltage |
:PRO 580V x 2 |
| Operating Power Voltage Frequency |
:117V (50Hz / 60Hz) |
| Power Consumption |
:46W |
| Ambient Temperature & Humidity |
:0 to 35ºC / 90% max. without condensation |
| External Dimensions |
:7.7 (W) x 4.1 (H) x 16.5 (D) in |
| Weight |
:11.5lbs |
| Color |
:Silver or Black |
| SRM-727II Driver |
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This page subject to change without notice
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SR-007 Specification