Updated 14 Feb, 2012, 6:01 pm IST

Koss QZ77 Noise Reduction Earphones

12 Jun, 2008, 6:02 pm IST | Laiq Qureshi | Headphones

The QZ77 takes one AAA-sized battery, and comes equipped with a volume dial, an on/off slider, and a green LED light to inform your when it’s on. The presence of a slip-on clamp means you don’t have to keep holding on to it at all times.

Simply put, the QZ77 isn’t the best solution available in the market. I prefer the sound without active noise reduction. The only real way of testing ANR is taking a joyride in the trains or on the roads, and I did just that. My verdict? While the company claims reduction in “low frequency noise below 1000 Hz by an average of 10 dB,” I doubt it! It does however reduce noise below 200Hz. Thankfully, the circuit doesn’t over-amplify sound while ANR is switched on, leading to true sound.

I wasn’t too happy with the sound reproduction. The mids were pretty okay (by this I mean flat), but the highs were annoying. The lows aren’t as effective, making the QZ77 bearable only for a while. The ANR hurts the eardrum after about half an hour of usage.

It costs Rs 6,100, which is steep when you consider you're paying for the 'memory' foam, an active noise reduction circuit, and the sound! When I weigh all the things this device promises as against what it actually does, I'd hesitate to recommend it wholeheartedly.

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