Today is Friday, 3rd September 2010

Best Acoustic Noise Cancelling Headphones Bose Qc3 Review

Pros: Bose’s first “on-ear” noise-cancelling headphone design, applying active noise-cancellation and comfort technologies taken from its earlier QuietComfort headphones to a smaller and equally comfortable alternative. Includes rechargeable battery and wall charger, carrying case with detachable strap, two headphone plug adapters and two lengths of cable.

Cons: Smaller earpieces provide far less passive noise isolation than earlier QC2 design, resulting in listener’s ability to still hear external loud noises while bose qc3 headphones are on; not as good for noisy motorized travel applications. Overall sound quality leans warm and soft, lacking for detail and treble in a familiar Bose sound signature that’s not befitting the high price.

After releasing its first QuietComfort Acoustic Noise Cancelling Headphones for travellers more than a decade ago, and especially since the release of its even more popular QuietComfort 2 sequel three years ago, Bose Corporation has been a moving target. Numerous companies have tried to prove that they could offer QuietComfort-like experiences at lower prices, while Bose has continually re-engineered its product to keep ahead of them. Today, we review the two most recent offerings in the noise-cancelling headphone market: Logitech’s considerably cheaper and similar Noise Canceling Headphones , and Bose’s own follow-up, QuietComfort 3 (aka QuietComfort3 or bose QC3, $349).

A bit of backstory helps put the bose QC3s in proper perspective. The original $299 QuietComfort model was developed to help consumers – primarily travellers – filter out persistent low growling noises such as airplane or automotive engine sounds, plus as much other ambient noise as possible. This was achieved through combining large, “passive isolating” earcups – capable of screening out some high- and midrange noise – with built-in “active noise-cancelling” microphones that could detect and counterbalance external low-frequency sounds. Though the first QuietComfort was considered somewhat unwieldy, Bose’s 2003 followup $299 QuietComfort 2 headphones – and a quietly released “second edition” version with improved sound balance made substantial improvements, and are widely considered to be the design competitors have to beat.

Selling for a $50 premium over the bose QC2, QuietComfort 3 is – at least for the time being – not intended to replace its predecessor. Both products remain available in Bose and other stores, and come equipped with the same general collection of pack-ins. Bose’s new carrying case drops QC2’s ballistic nylon exterior and is a bit smaller, but remains black in color and otherwise similar: it includes a detachable carrying strap, a gold adapter to let you use the QC3’s with a home stereo amplifier, a black and gold adapter with two prongs for use on airplanes, and two cables – one for standard connection to the headphones, the other a 5-foot extension cord. There’s also a stack of “Courtesy Cards” inside each case, with Bose contact information you can hand off to people who ask you about the headphones. It’s a funny touch, and more appropriate to the QC2s than these, for reasons described below.

Rather than merely aping the QC2 design or coming up with a cheaper, lower-quality offering, Bose has actually gone in a different direction with the bose qc3, foregoing essentially all of QC2’s earcup-style, “around-ear” passive noise isolation in favor of smaller, cushioned “on-ear” speakers. Consequently, QC3 is the family’s smallest and lightest design yet, and though it uses the same black and silver coloration of the most recent QC2, you can clearly see other differences: each speaker measures 2 7/8” high by 2 1/4” wide, versus the 3 4/5” high and 3” wide QC2 pieces. Though they’re nowhere near as small as in-canal earphones or most of the cheap clip-on earphones out there, they’re very small by noise-cancelling standards, as the picture next to the brand-new Logitechs suggests, and weigh less: 5.6 ounces with the cable, versus 6.9 ounces for the QC2.

So if the QC3s are smaller, lighter, and less ear-isolating, why are they more expensive? There’s only one answer we can offer: Bose includes a new proprietary rechargeable battery pack, which slides into the top of the right earpiece, and provides around 20 hours of continuous playback per charge. We’ve been told by Bose that the battery will last for 500 recharge cycles; it takes 2 hours for its first charge and then around 15 minutes thereafter. Also included is a wall charger, which is small enough to take anywhere, and fits in the included carrying case.

As with the QC2, the only control on the QuietComfort 3 body is a power switch, with an icon that glows red when the power’s on. If the switch isn’t turned on or there’s no battery power remaining, no audio can be heard through the headphones, a complaint about the QC2s that wasn’t remedied here. If this concerns you, bear in mind that you’ll also have to cough up $50 for a spare battery, versus around $5 for a pack of eight AAA cells – only one was enough to power the QC2s. In other words, you’ll have to make sure the bose QC3’s battery is topped off before you travel, or you’ll be in for some serious disappointment until you find a power outlet.

Given the arguable added benefits of a rechargeable battery, we might have been willing to look past QC3’s higher price if it provided a better-than-QC2 listening experience, but in short, it doesn’t – this is the major reason we suspect Bose isn’t ready to kill the QC2 quite yet. As we noted in the Logitech review earlier today, the QuietComfort 2s have become the reference standard for consumer noise-cancelling headphones, even though the most recent second edition version follows the Bose tradition of intentionally skewing warm and soft rather than delivering neutral or especially clear audio. As with the company’s similarly warm-skewing speaker systems, and despite audiophile criticisms that the QC2s lack high- and midrange detail and clarity, average consumers rarely register major complaints about their design or sound quality.

Why is this? We think the answer is in the QC2’s specified application. Active noise cancellation is intended for use by travelers – generally, passengers in mass transit vehicles with ever-present low rumbling engine noises – so Bose’s own low-end sound skew naturally fits with what’s going on outside of the earcups. Even though the earcups are currently not in vogue because of their large size and lower portability, their ability to offer a combination of passive isolation and long-term comfort is hard to rival, adding to their specific appeal for long trips. Additionally, the presence of ambient and more difficult to filter high- and midrange noise naturally reduces even a serious listener’s ability to make out all the details in those parts of the audio spectrum. Under lab-like conditions, audiophiles can poke holes in all of the QC2’s performance characteristics, but in real-world testing, people like them if they can afford them and don’t mind their size.

The QC3s are different: they perform considerably better in a quiet environment than in one with lots of ambient noise. Under optimal conditions, they sound almost exactly like the QC2s, with a warm but not especially detailed midrange, ear-pleasing bass, and just enough treble to let you distinctly hear high claps or other sharp sounds. Drums and strings reverberate soothingly, and though they don’t stand out from anything else on the relatively flat soundstage, voices are as clear and smooth as you’d hope. Put succinctly, this is good, not great sound for the price.

But whereas the QC2s are engrossing enough to essentially make the world around you disappear almost immediately, the QC3s won’t, unless you have small ears, and even then, probably not as effectively as the QC2s. The QC2’s bigger cups and their around-ear cushions do a comparatively excellent job of passively isolating your ears against mid- and high-frequency noises, effectively blocking out plenty of ambient sound before you ever flip the power switch to the on position. Once they’re powered up, it’s easy to get lost inside their sound – an almost imperceptible hiss is all you may hear during silences, unless you’re near something extremely loud that’s not low-pitched. With the QC3s on top of your ears, lots of ambient sound flows in – the same boombox or adjacent crying baby that is mostly mooted by the QC2 design is audible in the QC3’s. In other words, if the guy next to you on the plane wants you to tell him all about your new headphones, you’re much more likely to hear him ask, though you might not want to give him one of Bose’s cards.

Frankly, the only reason to prefer a pair of noise-cancelling headphones to other alternatives is its ability to filter out various sorts of outside noises, so in the absence of strong performance of this feature, it’s hard for us to recommend the QuietComfort 3s to most readers. Though they sound good – again, not great – when you’re in quiet environments, they’re not standouts in noisier ones, and you can do substantially better on both sound quality and passive isolation for the $350 asking price. Even though you’ll need to compromise an inch or two on size and an ounce or two on weight, we’d sooner recommend the cheaper QC2s instead, or the much cheaper Logitech Noise Canceling Headphones if you’re willing to accept fewer frills and some compromises on sound quality. At this price, if you’re willing to consider in-canal alternatives, you should also consider some of the stronger passive isolating earbuds from companies such as Etymotic (ER-4P) and Ultimate Ears (super.fi 5 Pro), which deliver similar ambient noise reduction and superior audio quality through tiny, earplug-like designs.

Article Source:boseqc3

Bose QuietComfort 3 Headphones Bose QC3 Review

I remember listening to Rush Limbaugh about five years ago when he announced he wasn’t going deaf as a side-effect of opioid addiction. Following his high-pitched squeal of a monologue, there was a commercial featuring a deeper-voiced recording of Limbaugh extolling the aural virtues of some Bose radio.

Bose: sound good enough for the deaf.

Just about every technology enthusiast has an opinion of Bose—and it’s probably the same one—and yet the average consumer ranks the Bose brand up there with the likes of Apple Computer and Sony. Like its brand brethren Apple Computer and Sony, Bose has its own retail stores, which is where my wife bought the QuietComfort 2 headphones three years ago. It was on the ride home, while giving the noise-cancelling efficacy a real test, she uttered words fit for a glossy advertisement.

“It’s like owning a luxury car for $300.”

If a technology enthusiast wants noise-cancelling gear, they buy from a company with a name you can’t even pronounce, like Etymotic Research. But what if earbuds make your head explode on planes and subways, or you don’t have the time or inclination for exhaustive research, or you just don’t care? Bose is there for you, at the mall, in magazines, on the radio and TV. Not surprisingly, my wife recently retired her QC2s in favor of the new Bose QC3 headphones, which left me $349 poorer, but with a nagging question. Is there more to the Bose QuietComfort 3 headphones than brand?

bose qc3

The Bose QC3 headphones are tightly packed into a semi-hard case with strap, along with accessories and audio accouterments, all with gold ends, of course. Everyone knows the importance of gold ends when using audio equipment. They are shiny. Besides the headphones, you get:

* custom lithium-ion battery that is expensive to replace
* wall-socket battery charger
* 4.5 ft. audio cord with a 3.5 mm plug on one end, and a smaller plug of some indeterminate size that connects to the headphones, so you are screwed if you lose the cord
* 5 ft. audio extension cord
* 1/4 in. stereo adapter plug
* dual-plug adapter for interfacing with high-fidelity audio systems found on airlines
* minimalist user manual
* business card holder and 10 courtesy cards, so you can pimp headphones for Bose on your own time

bose qc3 headphones

As for the headphones themselves, silver is the first thing you notice. Bose has gone with a more iPod-friendly look for the Bose QC3, and certainly one can find the headphones being demoed with iPods in Apple Stores everywhere. The headband is easily adjustable, and the ear cushions are removable and replaceable for those whose ceruminous glands produce an abundance of ear wax.

The top of the right ear cup is where the rechargeable battery goes, and it’s probably good to say a word about that: expensive. While the QC2 headphones used a AAA battery, it’s probably not accurate to say the new Li-ion battery is simply a money grab on the part of Bose. It’s hard to imagine fitting a AAA battery in the bose qc3 headphones because of size. However, one may need to spend an extra $50 for a spare battery, or possibly not. The battery is rated for 20 hours, and battery life has been excellent so far in my experience. It seems unlikely the battery will run down before you can recharge, and recharge times have never been more than two hours for my wife, usually much less, so an extra battery is probably not needed.

As for the rest of the physical layout, The bottom of the left ear cup is where you connect the audio cable. The power switch/indicator light resides on the right ear cup. Powering the headphones is required to use them for music, and doing so also activates the noise-cancellation technology. So, how do the QuietComfort 3 headphones sound—or not sound?

Note how the cups of the bose QC3 headphones are almost small enough to fit inside the cups of the QC2 headphones. Part of the reason for this is because the QC2 headphones made use of both active and passive noise-cancellation technology. You may have seen passive noise-cancellation technology in places like shooting ranges and driveways where leafs are being blown, that being putting big cups over the ears and making you look like an air-traffic controller. With the advent of the bose QC3 headphones, Bose has leveraged their evolving engineering expertise with buzzword marketing, the patented Acoustic Noise Cancelling technology.

Microphones in the earcups actively monitor what you hear, including unwanted outside sound. The difference between the unwanted sound and the desired sound is then electronically processed, creating a correction signal that acts to negate the unwanted noise. The speaker within each earcup is then fed the correction signal.

The technical term for that would be interference, but that would only confuse the average consumer, which is the point when judging the Bose QuietComfort 3 headphones. My wife thinks they work great, better in every way than the previous generation, better in the car, better on a plane, just better. I too find them to be better, at least as good as the bose QC2 headphones, especially since the noise-cancelling programming in the QC2s generated an audible hiss in quiet environments. I found this irritating when listening to music, which brings us to the next subjective question. How do the bose QC3 headhpones sound when listening to music?

Bose likes to talk about their patented TriPort Acoustic Headphone Whatever technology. This includes little ports on the outside of the earcups to let the drivers “breathe,” aiding in producing those great bass sounds Bose is known for among technology enthusiasts. However, the truth is the sound quality probably doesn’t matter. The target market isn’t the audiophile, despite what the advertising might say, but rather those who are happy buying 128 kbps music from the iTunes store. My wife has no complaints, but then what weight would complaints from someone whose music library is packed with Enya and Disney musicals carry with technology enthusiasts? For me, they are good enough, but then I value convenience over fidelity too.

Does that mean the bose QC3s are not recommended?

Headphones, like condoms, are a subjective experience, the best fit being found in the wearing. The Bose QuietComfort 3 Noise Cancelling Headphones are available for $349, but the purchase  is a 30 day money-back, no restocking fee, no questions asked policy. Perhaps a new slogan is in order.

Bose: what have you got to lose except the noise

Article Source:boseqc3

Dimensions & FAQs QuietComfort Bose QC 3 Noise Cancelling headphones

Dimensions
Overall headphone dimensions
7.38″H x 5.25″W ( 19 cm x 13.5 cm )

Ear cushion outside dimensions
2.88″H x 2.25″W ( 7.5 cm x 6 cm )

Weight with cable
5.1 oz (145 g)

Battery output power 3.7VDC, 200mAh

Battery life Approximately25 hours per charge; 500 charging cycles

FAQs
Are QuietComfort 3 headphones noise cancelling?
Yes. Proprietary Acoustic Noise Cancelling headphone technology electronically identifies and dramatically reduces noise—while preserving the audio or tranquility you desire.
Do Bose QC3 headphones use batteries?
Bose QC3 headphones come with a rechargeable lithium-ion battery and charger. You can expect an average of 25 hours of use per charge.
Will these headphones work with my MP3 player?
Yes. The Bose QC3 audio cable fits directly into most MP3 players, including Apple® iPhone™ and most iPod® models.
Will they work with my mobile phone?
It’s likely, yes. The optional Bose BQC3 mobile communications kit lets you use these headphones with a wide variety of popular mobile phones. View compatible mobile phones »
Are these headphones wireless?
Not in the conventional sense. The included cable must be used to hear audio from portable media players, home stereos, laptops and the like. If you simply want to use the headphones to reduce background noise, however, no audio cable is needed.
Do the headphones need to be turned on to listen to an audio source?
Yes. Turning on the power switch lets you hear your audio source and enjoy the added benefits of reduced background noise.

Article Source:boseqc3


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