Yama's Enterprises, Inc. STAX electrostatic audio products

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STAX SRS-007MK2 Electrostatic Headphone System
  SR-007MK2 Open-Back Electrostatic Earspeaker
STAX SR-007 Omega 2 Earspeaker
  Powerful Sound with Utmost Delicacy
The rationale is the development of the new SR-007MK2 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 no holes unlike 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.
Rigid Metal Housing
To maintain clear distortion free sound it is most important that nothing other than the diaphragm should vibrate. Within the STAX SR-007MK2 the sound element is encased in a thick insulated resin case firmly fixed to the rigid body. The results are nothing short of spectacular.
Fully Adjustable Earpads
Utmost comfort for maximum enjoyment of your STAX SR-007MK2 is provided with earpads that are fully adjustable to the shape of your head that are made of genuine sheep skin..
  SR-007MK2 Specification
Type :Push-Pull Open Back Electrostatic Headphone
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 sheep 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-007MK2 :
SRM-007tII Vacuum Tube Driver
SRM-007tII Vacuum Tube Driver
  Improved Frequency Response
Newly improved circuit raises the frequency response to 100kHz (from 70kHz) to accommodate newer generation audio formats such as SACD and DVD-A.
  Pure Balance Amplifier
The electrostatic transducer is driven by electrodes set on both sides of the diaphragm which carry the push-pull signals. This is thus virtually the only replay system that enables the listener to enjoy replay unique to balance transmission without the need to pass through a transformer or inversion amplifier.
  Heater Power Supply
Adopting a rectifier circuits combining low-noise, low-loss Schottky barrier diodes and large electrolytic capacitors. Low-ripple DC power source improves the SN ratio.
  Output Stage
  A simple two-stage amplifier configuration using high-voltage dual triode tube 6FQ7(6CG7) delivers straightforward properties that are transparent and clear sound quality.
  Input Stage
  Employs Hand pick low noise FET and 6 acoustic high sound quality relays. Simultaneous switching system adopted from SRM-T2 , input source is isolated of direct current and no interference between different devices.
  High Quality Volume Control
  High sound quality quadruple volume unit which makes XLR inputs as well as any analog line level inputs possible
SRM-007tII Specification
:Vacuum tube output stage Low noise dual FET input Class A operation, Pure balance DC amplifier configuration Earspeaker driver unit
Vacuum Tube :4 (6FQ7 / 6CG7)
Frequency Response :DC to 100,000Hz +0,-1.5dB w/ SR-007 or SR-404
High Harmonic Distortion :Max. 0.02% (with 1kHz, 100V r.m.s. )
Gain :54dB (x500)
Input Terminal
:3 ( XLR x 1, RCA x 2)) with 1 RCA parallel out
Max. Input Level :30V r.m.s. at min. volume
Input Impedance :50Kohm, 50kohm x 2 during balance
Max. Output Voltage :340V r.m.s. (1kHz)
Standard Bias Voltage :PRO 580V x 2
Operating Power Voltage Frequency :117V (50Hz / 60Hz)
Power Consumption :55W
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 :10.4lbs
Color :Silver or Black

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