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Ultrasone Pro 550 – No Longer Available

Foldable, closed-back professional headphones
MFR# Pro 550

Product Description

Professionally designed and equipped headphones. Detachable cables, extra cable, speed-switch earpads including 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 PRO hardcase, the closed light gray Ultrasone PRO 550 finds its fans within bass players and drummers. Due to requests we implemented an additional function which enables you to fold these headphones easily.
  • Foldable, closed-back professional headphones
  • with Aluminium nameplates
  • PRO Box (hardcase) for safe
  • transportation and storage, incl. accessories
  • Technologies:
  • S-Logic™ Natural Surround Sound
  • MU Metal shielding (ULE-technology)
  • Safer hearing
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 organizations. 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 been integrated in all 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.

PRO 550 Box Contents
  • Professional headphones
  • 2 detachable cables: one straight (length ca. 0.8 m),
  • one coiled (length > 3 m) with gold- plated jacks 6,3 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)

Product Specifications

Condition New
Headphone Style Closed

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I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.