Koss model
ESP-6 Electrostatic stereophones
Break
through in design gives distortion free, wide-range frequency response. Never
before possible in headphones.
3 octaves of
sound beyond the limits of ordinary coil and cone type driver elements - this
wide range is reachable only through electrostatic.
World's
first Self-Energized Electrostatics - easy to use you just plug-in like other
headphones. No special amplifiers or power supplies needed.
Virtually
Distortion-free, because of push-pull operation, Elements cancel all 2nd
harmonic distortion, unlike ordinary units. Square waves can be reproduced for
the first time by an electro-acoustic-reproducer.
Dynamic
level Indicators give measure of level - flicer at 10th row full orchestral
volume, stay lit at very high levels.
Calibrated
Machine-Run Frequency response, Chart with each headset - positive guarantee
that the headset you buy meets specifications.
Cleaner,
Wider range response than the best loudspeaker system yet producer - for the
first time you hear what really comes out of the tape machine, disc reproducer,
radio-tuner or microphone.
Through the
development of the world's first self-energized and self-contained
electrostatic headphones, a true breakthrough in wide-frequency response-range
and low distortion has been achieved by
Koss physicists and scientists.
Reproduces 9 of 10 audible octaves. This wide range is reachable only
through electrostatic stereophones. Exceeding performance of the best
loudspeaker systems now available, you get a critical monitoring facility that
tells you exactly what comes out of professional recording or monitoring
equipment. A new era in personal
listening is now available to the discriminating music-lover at 10% of the price of the finest
loudspeakers, you get sound as originally recorded, without lost stereo from
wall and ceiling reflections. Spurious room resonances are banished because of
the controlled listening environment tailored exactly to the human ear.
Frequency
response is 30 to 19,000 Hz (±5 dB). Model ESP-6 complete with 10' coiled cord
and connector box T-3.
Koss T-3
Speaker -
headphone transfer switch
The
T-3 is designed to provide a means of switching from stereo speakers to
Stereophones. It is connected to the speaker terminals of the amplifier or
receiver. The T-3 should be used when the headphone jacks on the amplifier or
receiver has high value resistors in series with it. These violently alter the
normal 8 Ω impedance upward. The high
impedance which results prevents high quality, low impedance headphones from
delivering wide range performance.
The
T-3 can be used with any amplifier having 4, 8 or 16 Ω output taps.