Stax SR-507 Electrostatic Headphones - Like New

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General:
Super clean set of the fantastic SR-507 headphones from Stax. Showing little to no use and working perfectly in our test environment.

You're not likely to find a cleaner set and for me that's pretty important with something as personal as headphones.

Please note the box in the photos and the headphone stand are not included.

Brand Background:
Stax has been making the worlds best electrostatic headphones since 1959

General Sound:
Accurate to the recording

Cosmetic Condition:
9/10 = Excellent. Perfect physical condition, gently used.. See our detailed rating description here.

Working Condition:
Working perfectly and tested in our lab.

Included:
Stax headphones only and please note the headphone display stand pictured is not included.

Packing:
Will be packed using our highly developed in-house process and custom packing materials.Reviews:
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Specs:
Type:
Push-pull oval sound element, open-back, electrostatic headphone

Frequency response:
7 Hz–41 kHz

Electrostatic Capacitance:
110pF (including cable)

Impedance:
145k Ohms nominal (including cable)

Sensitivity:
100 dB/100V rms @ 1kHz

Maximum Sound Pressure:
118 dB/400Hz

Bias Voltage:
580V DC

Weight:
533g (with signal cables)

Approximate Age:
2015

Testing Process:

We start with a visual inspection of drive units to ensure they are intact, the pads are supple and compliant and the headband is operative. We then check the cable for any broken wires, stressed connecting points or jacks.

We then do a listening test to make sure all frequencies, specially the bass is free from distortion, rattles of signs of a compromised transducer. We do a full frequency sweep and check for bass response and high frequency reach.

The unit is the cleaned, cord is properly coiled and supplement any connectors or adapters that should be present.