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Koss QZ-Pro Active Noise Cancellation Stereophone Review

04:35, Posted by Kristal E Young, No Comment

Koss QZ-Pro Active Noise Cancellation Stereophone
Average Reviews:

(More customer reviews)
I asked for, and received, these for Christmas.I tried them without the noise canceling feature enabled.They are closed-ear and do reduce ambient noise from the environment (about the same as any other closed-ear phones).I was very disappointed to find thatwhen I turned on the noise cancellation, it actually INTRODUCED MORE noise.They apparently have poorly designed amplification circuitry and there is a signficant amount of hiss when the noise cancellation is turned on.I have not yet evaluated their ability to cancel low frequency sounds (like road and aircraft noise) but the high frequency hiss makes them unacceptable for listening to music with this feature turned on.

Bottom line: they are a little pricey for use as low end closed-ear headphones, which is their only suitability.Buy a pair of Sennheiser HD201's or HD202's for this purpose at half the price.If you want noise cancellation, buy something else.

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Product Description:
- Delivers combination of passive & active noise reduction (ANR)- Soft vinyl, closed cushions create a seal around the ear- Active noise reduction circuitry built directly into the ear cups- Noise reduction circuitry can be turned on & off with a flip of a switch- Extra-soft, padded headband- Completely collapsible-ideal for travel - Freq resp: 40 Hz-20 kHz- Imp: 32O- Sensitivity: 90 dB/mW- 4-ft single entry, straight cord- Requires 2 AAA batteries for approx 30 hours of continuous play- Includes 2-prong airline adapter

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