Features
The SRM-727A is designed to produce a constantly stable output voltage of more than 400V in all frequencies up to 100kHz thus ensuring compatibly with all new audio formats including DVD Audio and SACD. STAX SRM-727A Driver Unit is a newly designed Solid-State model featuring DC amplifying circuitry.
STAX, the pioneers of the world's first open-air electrostatic type headphone combines over 40 years of experience and new technology to create the 4070 earspeaker, the world's first enclosure electrostatic type headphone.
The 4070's employ an original "bass-reflex like" ventilation air structure, which results in open-air sound quality while eliminating outside noise, thus making a new type of ear speaker.
The high quality sound of electrostatic type music listening can now be obtained even in loud environments. Before, monitoring live recording was difficult. Now, monitoring with the highest form of reproduction is possible without the interference of outside noise.
STAX electrostatic headphones use neither magnets nor coils like ordinary (dynamic) headphones, instead an electrostatic field reproduces sound.
Two parallel-arranged fixed electrodes, which receives the music signal and super thin diaphragms which receives 580V of dc voltage create an electrostatic field that drives the diaphragm. By this principal, the nature of the sound is detailed, sincere, and a reproduction of all nuances.
Specifications
Stax 4070 Close-back Type Earspeaker Specification
Type: Push-pull Electrostatic Oval Shaped Units. Closed- Back Enclosure
Frequency Response: 7-41,000Hz
Capacitance: 110pF including cable provided respectively
Impedance: 145kOhms 10kHz
Sensitivity: 97dB/100Vrms Input/1KHz
Maximum Output Sound Level: 118dB/400Hz
Standard Bias Voltage: 580V/DC
Left/Right Indication: L & R indicators are provided on the enclosure and the left channel cable is marked with a solid line while the right channel cable is marked with a dotted line.
Ear Pads: High quality synthetic leather
Cable: 6-core parallel special low capacitance wire/2.5 m(98-inch)
Cable Conductor: PC-OCC
Weight 625g, 480g without cable
Operation Temperature: 0-35 Degree
Specifications and appearance due to Improvements are subject to change without notice.
Stax SRM-727A Driver Unit Specifications
Frequency characteristic: DC~115kHz (SR-007 or SR-404)
Amplification degree: 54dB (500 times)
Harmonic distortion factor: 0.01% or less (100~10kHz/100 Vr.m.s. output)
Input terminal: 1 (RCA⇔XLR)
Rated input level: 200mV/100V output
Input impedance: 50k ohms (RCA), 50k ohms x 2 (XLR)
Installed capacity voltage: 450V r.m.s (1kHz)
Standard bias voltage: PRO 580Vx2
Operational power supply voltage: AC100Vą5% and 50~60Hz
Electric power consumption: 46W
Operational ambient temperature/humidity: Below 0~35℃/90%
External size: W195 x H103 x D420 mm
Weight 5.2kg
Availability
This product is usually shipped within 3-5 days.
Accessories
Free voltage transformer to convert electricity in destination country (110~120V or 220~240V) to 100V.
Colors available: Silver |
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