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Technical specifications:
S-Logic Natural Surround Sound
Dynamic principle
Frequency range 10-25.000 Hz
Impedance 75 Ohm
Sound pressure level 95 dB
MU Metal bufferboard, reduced field emissions
in accordance with ULE (=Ultra Low Emission) standard
Driver 40 mm gold-plated
Weight 295 g (without cord)
Long-term availability of spare part
Character
The PRO 650 comes in the specifically designed PRO Box including 2 detachable cables and a spare pair of earpads. The earpads are easy to change (speed-switch-technology). As with all Ultrasone PRO models the detachable cables make it easy to choose the cable you prefer. The closed-back PRO 650 uses high-class gold-plated drivers. In combination with the design, PRO 650 offers an spectacular open 3-dimensional balanced image with a maximum of transparancy.
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.
