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Short description 

Foldable, open-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 8-35.000 Hz 
Impedance 40 Ohm 

Sound pressure level 94 dB 
MU Metal bufferboard, reduced field emissions  

in accordance with ULE (=Ultra Low Emission) standard 
Driver 40 mm titanium-plated 

Weight 294 g (without cord) 
Long-term availability of spare parts 
 

Character 
You prefer open-back headphones? Using the same stiff titanium-plated drivers as PRO 

750, the PRO 2500 model provides due to its open-back design the most airy sound 
within the complete PRO line. Accuracy and the finest sound reproduction is guaranteed 

for everybody who does not wish a closed-back system. 

The open masterpiece 

 

PRO 2500 

 

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