Bose headphones

Bose Corporation produces headphones for consumer, aviation and military use. The models range includes in-ear headphones, mobile headsets, supra-aural headphones, circumaural headphones and military/aviation headsets. The company the first to release active noise cancelling headphones as a consumer product.^[1]

Timeline of Bose headphones

Active noise-cancelling headphones

Bose's consumer range of active noise-cancelling headphones are called QuietComfort. For industrial noise-cancelling applications, Bose produces the A20 Aviation Headset, Space Shuttle Headset and Combat Vehicle Crewman Headset.

Noise-cancelling headphones development

According to Bose, the company started noise-cancellation involvement after Dr. Amar Bose went on a 1978 flight to Europe, "was trying out new set of airline-supplied headphones and found that he couldn't really enjoy the sound with the roar of engines in the background".^[3]

In 1986, Bose applied their noise-cancellation technology to develop headphones to protect the hearing of pilots participating in the first unrefueled non-stop around-the-world flight in the Rutan Voyager.^[4]

One source notes that "nearly simultaneously, the US company Bose and Sennheiser in Germany presented active headsets for aircraft pilots"^[5] citing a 1986 American Society of Mechanical Engineers paper about the Bose product and a 1988 Funkschau (see de:Funkschau) paper about the Sennheiser.

Bose QuietComfort 3 Headphones

Bose QuietComfort 3 Headphones

Bose released the QuietComfort 3 Acoustic Noise Cancelling Headphones ("QC3") on June 15, 2006, the company's first pair of on-ear headphones. Bose states that, although headphones which envelope the ear provide greater passive noise isolation, the QC3s have the same amount of total noise reduction as the QC2s due to improved active noise cancellation. Memory foam is used to improve the passive noise isolation.

The QC3's earcups are powered by a rechargeable lithium-ion battery, Bose claims a battery life of 25 hours.^[6]

The headphones were favorably reviewed in Sound & Vision^[7] and were the first headphones to receive that magazine's Editor's Choice award, in 2006.^[8] That year, the QC3s also received a Potentials Magazine Gold Star Award "Bronze" for Premium Incentives.^[9] In 2007 they received a Red Dot Award for product design.^[10]

Bose QC3 headphones are provided by American Airlines for use by passengers in premium flight classes on some long-haul flights.^[11]

Bose QuietComfort 15 Headphones

The QuietComfort 15 was released on 20 August 2009. A model to supersede QuietComfort 2 Revision 2, both the QuietComfort 2 Revision 2 and the QuietComfort 15 share the same cosmetic design,^[12] however the QuietComfort 15 uses a microphone on the inside and outside of each earcup. The QuietComfort 15 offers redesigned earcup padding and materials to provide additional passive noise reduction. Both QuietComfort 2 and QuietComfort 15 are powered by a single AAA sized battery and have a "High / Lo" switch to adjust for sources with high and low output levels.^[13]

American Airlines provides QuietComfort 15 headphones to first- and business-class passengers on some long-haul flights.^[11] Bose has made American Airlines several special edition versions of the QuietComforts starting with the original QC1 that had blue ear cups and an American Airlines logo on them. American Airlines became the first airline to offer the QuietComforts. On 1 July 2006^[14] JAL started to offer QuietComfort 2 headphones to First class customers on some flights^[15] Air India also offers QuietComfort 3 headphones to its Premium Class customers on some long haul flights. Cathay Pacific provides their First and Business Class passengers a pair of customized Quiet Comfort headphones.

Bose Quiet Comfort 15 has won the What Hi-Fi? Sound and Vision annual award for "Best Noise Cancelling Headphones" since 2010.

Custom Bose QuietComfort 15 Headphones

Bose also offers QC15 in custom color through 3rd party vendor Colorware who specialized in customizing appearance for consumer electronics. It costs $100 more than the standard QC15, customers can customize almost every part of the headphone through a web-based design tool. The 30-day return policy on custom headphone incurs 25% re-stocking fee.

Bose QuietComfort 20 In-ear Headphones

In August 2013, Bose announced their first in-ear active noise-cancelling headphones. It uses a small control module which is located near the jack to provide the technology similar to that of the QuietComfort 15. This control module also contains a rechargeable battery which powers the active noise-cancelling. The QuietComfort 20 headphones feature upgraded, passive noise-sealing eartips named the StayHear+, similar to the ones found on the IE2 (StayHear). A new feature which Bose have also introduced in these headphones is the "Aware Mode". This mode allows you to press a single button on the in-line remote to let in some background noise for convenience whilst your music is playing; this means you do not have to always be noise-cancelled. The headphones can be purchased in two versions; the QC20 is for Android, Windows and Blackberry and the QC20i is designed for Apple compatibility. The in-line remote for the QC20i also has direct music control access unlike the QC20. ^[16]

Space shuttle headset

Bose makes noise-canceling aviation headsets which have been used in the Space Shuttle, where the noise cancellation feature helps prevent astronaut hearing damage.^[17]

A20 aviation headset

Released on July 26, 2010^[18] as an upgrade to the previous "Aviation Headset X" (aka A10), they are noise reducing headphones for pilots. It either runs on two AA batteries for 45 hours or is powered by the airplanes electrical system. It has an Aux in for a separate audio device, and better noise reduction and less clamping force than its predecessor. There are two models, one that includes a Bluetooth kit for cellphones or one that excludes this feature.^[19]

From 2000 to 2005 Aviation Headset X was voted #1 by Professional Pilot magazine's headset preference survey five years in a row.^[20]

Combat Vehicle Crewman Headset

In 1993 Bose introduced an active noise reduction system for use by crews in United States Army combat vehicles.At noise levels of 115dBA SPL, Bose noise cancelling headsets improves speech intelligibility scores to 95%, compared to 80% for conventional headsets.^[21]

Triport Tactical Headset

The Triport Tactical Headset (TTH) introduced in 2004,^[22] also called the Improved Tactical Headset (ITH), is an improved version of the Combat Vehicle Crewman Headset, is in widespread use today. This system is for use in wheeled vehicles that while quieter can produce 95dBA SPL or higher. It fits under infantry ballistic helmet.^[23][24]

Circumaural headphones

AE2

Bose Around-Ear 2 (AE2) headphones

On October 15, 2010, Bose released the AE2 circumaural (termed "around-ear" by Bose). Connection is through a detachable cord that connects to the left side of the headphones. The foam on the original headband of the original TriPorts has been replaced with a synthetic leather and the earpieces rotate flat for improved storage, similar to the QuietComfort models.

Supra-aural headphones

The "triport" earcup structure has three miniature air ducts that claim to allow the drivers to make larger excursions before distorting.^{[citation needed]}

On-Ear headphones

The Bose On-Ear headphones are Bose's first supra aural headphones and were introduced on October 12, 2006. The Bose On-Ear is similar to the Bose QuietComfort 3 Headphones, but without active noise cancellation. The cord is detachable; both 43 and 16-inch cords are available.^[25]

Shortly after the release of the iPhone in 2007 Bose redesigned the OE's headphone plug on the detachable cords to make it iPhone compatible.

In 2008, the Red Dot Award for product design was awarded to Bose On-Ear Headphones^[26] (note, this design award does not include audio quality in the evaluation criteria).^[27]

OE2

In October 2011, Bose replaced the On-Ear Headphones with the OE2 and OE2i,^[28] which are smaller and lighter than their predecessors.^{[citation needed]} The only difference between the OE2 and OE2i is that the i includes an Apple-specific inline three-button iPod/iPhone remote control with inbuilt microphone. This remote has play/pause, volume control, previous track and next track buttons.^{[citation needed]}

In-ear headphones

IE2

Bose In-ear (IE2) headphones

On August, 16 2010 Bose announced the IE2's shallow insertion in-ear headphones.^[29] Unlike many other in-ear headphones, they are not inserted deep into the ear canal, rather the fit is similar to an earbud.^[30] Therefore noise isolation is less effective than canalphones^[31] The tips which are required to hold this design in place are called "StayHear" tips by Bose.^[32] The audio quality of the IE2 was judged to be outperformed by other models in its price class.^[33]

Mobile headsets

MIE2

The MIE2 headset is the same as the IE2 headphones, but with a microphone added so that it operates as a cellphone headset.^[34]

Some complaints about the early production In-Ears have been that the "silicone ear tips become detached under certain conditions" and that the "stability of the headphones during certain activities, such as exercise, could be improved". Bose set up a website^[35] to send redesigned ear tips and a new clip and the lanyard for free.^[36]

MIE2i

The MIE2i headset is a version of the MIE2 design for Apple devices (including the iPhone, iPod, iMac, iPad).^[34] It incorporates an in-line remote control for volume, track up/down and access to select Apple voice applications.

Bluetooth headset

On November 1, 2010, Bose released its first wireless Bluetooth headset.^[37] Ambient noise sensing automatically adjusts the volume level based on background noise so that, in theory, the user should not have to adjust the volume when walking between quiet and noisy environments. Signal processing attempts to amplify the caller's voice and reject background noise, allowing the caller to be heard more clearly; however, in practice call quality is poor for models without A2DP.^[38] The headset design is similar to Bose's IE2 headphones.^[39][40] .^[41][42]

The first release of the Bose Bluetooth headset was criticised for having poor call quality, a lack of features and a high price tag.^[38]

Bluetooth Headset Series 2

On October 2011, Bose released its second-generation Bluetooth headset.^[43] It comes in both a left and a right ear version, supports A2DP, and the automatic volume control based on background noise level (termed "Adaptive Audio Adjustment technology" by Bose) has been revised.

The headset also has a volume control, a command button for answering calls and a sliding on/off switch. The Series 2 model was judged a "solid performer" and praised for improved call quality (presumably due to the inclusion of A2DP), however the criticisms of lack of features and high price remained.^[44]

See also

• Bose Corporation
• Previous Bose headphones

References

• Bose Aviation X owners manual