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Ultrasone HFI-680 S-Logic Surround Sound Professional Headphones - Black/Silver

Item # USHFI680 (Part # HFI680)
HFI-680 S-Logic Surround Sound Professional Headphones - Black/Silver
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Discontinued. Brand new, USA Warranty
Item Description:
Eye-catching exclusive design and sand-grey coated. The HFI-680 catches the eye and enjoys your ears with an extraordinary balanced, natural and detailed sound image.

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Technical specifications:
S-Logic Natural Surround Sound Plus
Dynamic principle
Frequency range 15-25.000 Hz
Impedance 75 Ohm
Sound pressure level 99 dB
MU Metal bufferboard, reduced field emissions
in accordance with ULE (=Ultra Low Emission) standard
Driver 40 mm gold-plated
Weight 285 g (without cord)
Straight cord (length ca 3m)
3,5/6,3 mm screwable gold-plated plug
Transportation bag
Demo CD
Instruction manual
Long-term availability of spare parts


Character
Eye-catching exclusive design and sand-grey coated. The HFI-680 catches the eye and enjoys your ears with an extraordinary balanced, natural and detailed sound image. Experience the complete isolation of closed-back headphones and the honest sound of open ones. The high class gold-plated drivers of the HFI-680 are very sensitive and provide a maximum of transparency.


ULE-technology
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 percent 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!


S-Logic Plus
S-Logic Plus is the newest advancement in the S-Logic Natural Surround System, squeezing the BIG S-Logic soundstage found in our PRO series headphones into the more streamlined ear-cups of select HFI & DJ models. S-Logic Plus profits directly from innovations developed for our flagship Edition range, the ultimate headphones for critical listening.This sophisticated new technology combines precision damping with micro-acoustic reinforcement, allowing driver, buffer-board, and spatial parameters to compliment one another in an optimal manner. So the acoustically redesigned ear-cups of these new models and their tonal fine-tuning result in a most neutral sound impression, including more vivid perception of voices and instruments.


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 percent (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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