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Foldable, closed-back professional headphones
with new Aluminium nameplates
New PRO Box (hardcase) for safe
transportation and storage, incl. accessories
Technologies:
S-Logic™ Natural Surround Sound
MU Metal shielding (ULE-technology)
Safer hearing
PRO Box contents
Professional headphones
2 detachable cables: one straight (length 3 m),
one coiled (length > 3 m) with gold- plated jacks 6,3 mm
and gold-plated adapter 6,3/3,5 mm
Spare pair of speed-switch ear pads
Demo CD
Instruction manual
Technical specifications
S-Logic™ Natural Surround Sound
Dynamic principle
Frequency range 10-22.000 Hz
Impedance 64 Ohm
Sound pressure level 102 dB
MU Metal bufferboard, reduced field emissions
in accordance with ULE (=Ultra Low Emission) standard
Driver 50 mm Mylar
Weight 295 g (without cord)
Long-term availability of spare parts
Character
Professionally designed and equipped headphones. Detachable cables,
extra cable, speed-switch earpads incl. a spare pair of earpads,
hardcase for storage and transportation and many more details meet
professionals´ needs. The 50 mm heavy duty driver is producing an
imposing sound intensity. Tight and powerful bass plus precise and
detailed instrument placement is given. Combined with all useful
accessories included in the new PRO hardcase, the closed PRO 550 finds
his fans within bass players and drummers. Due to requests we
implemented an additional function which enables you to fold these
headphones easily.
ULE-technology & PRO design
PRO headphones stand for Ultra Low Emission (ULE-technology)
with significant benefits for professional users and PRO headphones
show a specific design. The PRO appearance does not only distinguish
the professional line but also allows due to more ear anatomy area a
higher degree of transparency in combination with the spatial sense and
understanding.
To understand what ULE-technology does, you need to know that most
headphone drivers produce low-frequency magnetic fields as they convert
an electric signal into an acoustical signal you hear as music. In
response, Ultrasone developed a special MU Metal shielding
(ULE-technology) to reduce the radiation by up to 98% compared to
current headphones. The ULE-technology has stood the test of
international review and is recommended by technical surveillance
organisations. Ultrasone originally developed the ULE-technology for
professionals as they do spend half of their lives in headphones. But
due to grand requests the ULE-technology has now been integrated in
other Ultrasone headphone lines.
S-Logic™ Natural Surround Sound
Through S-Logic™ Natural Surround, the sound moves out of your
head and into the room around you. Consequently, the music is no longer
confined, but breathing once again, spacious and organic. Direction and
distance are more easily perceived – it’s like being at a live concert (…or in
the studio). No additional equipment is necessary. So with just a pair of
Ultrasones and your favorite audio device, prepare yourself for genuine
3-dimensional enjoyment!
Safer hearing
S-Logic™ does not only create a Natural Surround Sound. S-Logic™ allows
at the same time a reduction of sound pressure levels by up to 40% (3-4
dB) for the same loudness sensation. This may reduce the risk of
hearing damage while ensuring hours of fatigue-free listening. However,
Ultrasone generally advises not to listen to music at high volumes to
prevent hearing damage.
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