KOSS QZ PRO
Active Noise Reduction Stereophone
The Koss Quiet Zone™ QZ PRO stereophone delivers a
winning combination of passive and active noise reduction (ANR) for music lovers
who are looking for a little peace and quiet on the go.
Designed with soft, vinyl closed cushions that create a seal around the ear, the
QZ PRO creates a passive, mechanical seal that reduces ambient noise while
retaining bass frequencies.
Koss's active noise reduction circuitry is built directly into the earcups using
tiny microphones that sense surrounding low frequency. Information about the
undesirable sound waves is processed through the circuitry and creates an
"anti-wave." The sound wave and "anti-wave" counteract each other at the
wearer's ear, reducing the irritating low frequency noise and increasing
listening pleasure.
Designed to reduce low frequency, repetitive noise, the QZ PRO is most effective
at blocking out noises you want to eliminate while not affecting things you want
to hear- like voice and music. The QZ PRO affects those noises between 30Hz and
1400 Hz, allowing music and voice to come through loud and clear.
No lightweight when it comes to sound reproduction, the QZ PRO utilizes a
dynamic element for a full frequency response of 40-20,000 Hz. A deep bass and
balanced midrange deliver an impressive sound performance whether you're
enjoying a DVD, CD or MP3 recording. An extra-soft, padded headband allows for
lightweight comfort for extended listening periods.
Completely collapsible, the QZ PRO makes an ideal travel companion on a plane,
bus or automobile. No need for noise cancellation? No problem. And unlike some
competitive models, you can enjoy the Sound of Koss with or without noise
reduction. The QZ PRO noise reduction circuitry can be turned on and off with a
flip of a switch.
The QZ PRO operates on 2 "AAA" batteries and delivers approximately 30 hours of
continuous play. Additional features include a 4-foot, single entry, straight
cord and a 2-prong airline adapter.
To install the batteries: The QZPro does operate on batteries which are
located in the right earcup. If you grasp the right ear cushion and turn counter
clockwise, the ear cushion should twist off.The battery compartment is located
inside.
Specifications
Frequency Response 40-20,000 Hz
Impedance 32 ohms
Sensitivity 90 dB SPL/1mW
Distortion 0.2%
Cord Straight, Single Entry, 4ft |