PROline stands for Ultra Low Emission and means significant benefits for professional users as it is highly-developed and specially designed for professionals. The new design 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.

PROline technology was systematically developed for professionals
as they do spend half of their lives in headphones. Most headphone drivers today convert an electric signal into an acoustical signal, producing low-frequency magnetic fields. Medical research shows
that these emissions can be hazardous to our health. In response, ULTRASONE developed a special MU Metal shielding to reduce the radiation by up to 98% compared to current headphones. The patented PROline (ULE=Ultra Low Emission) technology has stood the test of international review and is recommended by technical surveillance organisations.

Through the S-Logic™ Natural Surround Sound the usual headphone sound will be moved out of the head in the room around you. The sound is no longer locked in, but appears broad and detached. Directions and distances can be heard and perceived - it’s just like being in a live concert.
For this new technology additional equipment is not required. Take
a pair of ULTRASONE headphones and you will be ready for the
3-dimensional sound enjoyment!

S-Logic™ Natural Surround Sound allows an up to 40% lower
dB output (3-4 dB) for the same loudness sensation. This may significantly reduce the risk of hearing damage while ensuring
hours of fatigue-free listening - an absolute must if you spend
a lot of time in headphones.

Using the same stiff titanium-plated driver as PROline 750 within an open-beck design, PROline 2500 will provide you with the most airy sound within the complete line. If you don´t need a closed-back design the PROline 2500 will satisfy your expectations with the most proper, accurate and finest sound reproduction.

Due to professional needs and requests we implemented an additional function which enables you to fold these headphones for a compact storage and easy transportation in a suitcase. Thanks to its con-struction and outstanding quality you will enjoy the sound transferred
without limitations.

MPN: PROLINE2500
UPC: 4043941084001

Description:
Foldable, open-back professional headphones
with S-Logic™ Natural Surround Sound
MU Metal shielding
Safer hearing
PROline Box incl. accessories
Free demo-CD enclosed

PROline 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
Transportation bag


Technical specifications:
S-Logic™ Natural Surround Sound
Dynamic principle
Frequency range 8-35.000 Hz
Impedance 40 Ohm
Sound pressure level 94 dB
MU Metal bufferboard, reduced field emissions
in accordance with ULE standard
Driver 40 mm titanium-plated
Weight 292 g (without cord)