Bose QuietComfort 20/QC20 Headphones Review

The Bose QuietComfort 20 are good-looking earbuds. The cable is rubberized and black, with blue accents for style. The flat rectangular noise isolation generator is latex coated and also has the same blue accent for the on/off button. The StayHear+ tips are curved and designed to fit most ears.

The QC20 have a comfortable earbud design that doesn't enter the ear canal like most in-ear headphones. This makes them comfortable enough to wear for long listening sessions without any listening fatigue. Unlike the over-ear Bose QuietComfort 25, these headphones don't cause too much discomfort when the noise-cancellation feature is enabled.

The Bose QuietComfort 20 have a straightforward and efficient control scheme. The buttons are well spaced out and provide all the essential functions; call/music, track skipping and volume controls. The buttons deliver good feedback and the Control Module is very thin and easily fits in tight pockets.

The Bose QC20 have a breathable design that won't make your ears sweat more than usual. They trap a bit of heat within the notch of your ear due to their earbud tips and stability fins, but they won't cause a big difference in temperature even during more intense workouts.

The Bose QC20 are very portable headphones. They don't take too much space and will comfortably fit into your pockets, purse or bag. The control module makes them a little larger than basic in-ear headphones but is flat enough to not add additional bulk to the design.

These earbuds come with a soft fabric case that will protect the headphones from scratches and prevent them from getting tangled in your bag. It also doesn't add much bulk to the already small headphones so it will still fit in your pocket or bag. However, the soft fabric will not shield your headphones from water damage or high physical stress.

The Bose QuietComfort 20 have a good build quality. The control module and earbuds are dense and durable enough to withstand multiple accidental drops. The cables are also thick and won't easily get damaged by wear and tear unlike some of the cheaper in-ears we've tested. However, the latex cover on the Control Module peels off relatively easily after repeated use but doesn't actually damage the module so it's more of a cosmetic issue.

These are stable earbuds that won't easily fall out of your ears. They offer a variety of stability tips that help them maintain their stable fit. They work well as gym headphones and are stable enough to be used while running. Unfortunately, they're not wireless, and the long cable can easily get hooked on something, which will pull the headphones out of your ears.

• Bose QuietComfort 20 Headphones
• 3 pairs StayHear®+ tips (S, M, L)
• USB cable
• Carrying case

The frequency response consistency of the QC20 is good. Due to their unique earbud design, if the user is able to achieve an air-tight seal with these headphones, then the bass delivery should be very consistent across multiple re-seat and individuals. The consistency in the treble range is also good, but it is dependent on the placement and more prone to inconsistencies.

The bass of the QuietComfort 20 is good. LFE (low-frequency extension) is at 21Hz, which is great, meaning they can produce very deep thump and rumbles. However, the entire bass range is consistently above our neutral target by more than 4dB. This makes the overall bass of the QC20 excessively heavy, which sounds boomy and drowns out vocals and other instruments in the mid-range.

The Bose QC 20 has a mid-range performance. Low-mid is overemphasized by more than 3dB, which is the continuation of the bass overemphasis. This thickens the vocals and makes the mid-range sound cluttered and muddy. Additionally, the dip/recess centering 800Hz pushes vocals/leads slightly to the back of the mix, by giving more emphasis to the bass and treble frequencies.

The QC 20 has sub-par treble range performance. The response throughout the range is rather inconsistent. Low-treble is above our target by more than 2dB, bringing emphasis and projection to the upper harmonics of vocals and lead instruments, and giving a subtle V shape to the overall frequency response. The inconsistencies in mid-treble will make the production of sibilances (S and Ts) rather uneven. Additionally, the lacking high-treble means their sound headphones will lack airiness and brilliance.

The imaging is great. Their weighted group delay is at 0.36, which is within good limits. But the GD graph shows that it crosses the audibility threshold below 50Hz, but not enough to have a significant effect. Additionally, the L/R drivers of our test unit were quite well-matched in amplitude, frequency, and phase response, ensuring an accurate placement and localization of objects (voices, instruments, video game effects) in the stereo image.

The soundstage is poor. This is mainly due to their earbud design, since activating the resonances of the pinna (outer ear) is one of the key factors in creating a large and out-of-head soundstage and earbuds don't interact with the pinna. Also, their soundstage won't feel as open and spacious as that of closed-back in-ear's, because of their high degree of isolation.

The isolation performance of the Bose QC20 is great. Once the active noise cancellation is enabled, they provide more than 23dB of isolation in the bass range, which is excellent for cancelling out the rumble of airplane and bus engines. In the mid-range, important for blocking out speech, they achieved about 22dB of isolation, which is also great. In the treble range, occupied by sharp S and Ts, they reduce outside noise by about 28dB, which is above average.

The leakage performance is excellent. The significant portion of their leakage is concentrated in a narrow range in the treble. This means their leakage will sound very thin and mostly consist of S and Ts. The overall level of the leakage is also very quiet. With the music at 100dB SPL, their leakage at 1 foot away averages at 27dB, and peaks at around 41dB. Well below the noise floor of most offices.

The recording quality of the QC20's microphone is decent. In the bass range, they lack quite a bit, except for the area around 90Hz. This results in a recorded/transmitted speech that sounds noticeably thin. Their HFE (high-frequency extension) however, is at 18KHz, which is great. This, and the flat frequency response mean that speech will sound detailed and present, which makes it easy to understand.

Update 10/22/2021: These headphones have been updated to test bench 1.5. In this update, we made changes to the way we test noise handling. We now use a subjective evaluation of our audio clips. This new method has resulted in different results than what we had reported in our previous test bench. As a result, the scoring of this box has changed, and we have updated our results.

The in-line microphone has an okay noise handling performance. It has some trouble separating your voice from moderate ambient noise around you. If you're taking a call from a busy street, your voice won't be completely drowned out, but it may be harder for the other person to hear you clearly.

The Bose QC20 have a good battery life. They last around 19 hours and don't take too long to charge. They're also capable of playing audio when charging, which makes them good headphones use at the office or if you have access to a power source on the train or plane. Unfortunately, if you leave them on they will run out of battery because there is no auto-off timer.

These headphones have no compatible app.

These headphones do not have any Bluetooth capabilities. If you wan't a bluetooth headset with a similar design to the QC 20 check out the Bose SoundSport Wireless, the QuietControl 30 or the SoundSport Free. For more Bluetooth headphone options check out our best wireless recommendations here.

The Quiet Comfort 20 have a wired connection with negligible latency.

The Bose QC 20 have a 1/8 TRRS analog audio cable that does not have microphone compatibility with consoles.

The Bose QuietComfort 20 headphones do not have a base station or a dock. If you want a noise canceling headphone with a dock, then try the Turtle Beach Elite 800.