Headphones and headsets: KOSS PRO4AAAT

Brand history

KOSS PRO4AAAT

headphones, monitor, registration closed, 10-25000 Hz, 250 Ohm, cable, 2.4 m, Jack plug 3.5 mm and 6.3 mm

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General information (KOSS PRO4AAAT)
Release date on the market	2009
Main (KOSS PRO4AAAT)
Type	headphones
Design	monitor
Acoustic design	closed
Wireless interface
Design features (KOSS PRO4AAAT)
Cable length	2.4 m
Plug	3.5mm i 6.3mm
Volume control
Specifications (KOSS PRO4AAAT)
The lower boundary frequent. range	10 Hz
The upper border is frequent. range	25 000 Hz
Nominal impedance	250 Ohm
The coefficient. harmonic distortion (THD)	0.1 %
The active noise cancellation

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