When comparing AKG K553 Pro vs 66 Audio BTS Pro, the Slant community recommends 66 Audio BTS Pro for most people. In the question“What are the best headphones?” 66 Audio BTS Pro is ranked 21st while AKG K553 Pro is ranked 132nd. The most important reason people chose 66 Audio BTS Pro is:
The BTS Pro is quite robust and can withstand some minor splashes of sweat or rain as these are sweat-proof. They are not completely water-proof though, so you should not get them soaking wet.
Specs
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Pros
Pro Quite comfortable to wear
The K553 Pro's earpads feature pleather materials which feel supple on the skin. Inside, the quality foam should provide ample cushioning. The headband also features a pleather surface and has some padding, which should help ease the pressure off of your head.
Pro Produces clean and accurate yet versatile sound
The sound is clear and accurate, and it should be very easy for the listener to pick out the details in the music. The bass level is just right without sounding boomy or muddy. The mids sound natural and neutral so these frequencies do not jump out of the mix. The highs are slightly extended, but do not make the sound harsh in any way.
Pro Solid build quality and premium feel
These headphones have very good build quality. Solid plastic and durable-feeling plastic is used for most of the headphones' parts. The matte finish adds a softer and more premium feel to the plastic surfaces. The headband is made of metal so it can handle some flex without breaking.
Pro Great noise isolation qualities
The closed design helps to greatly minimize sound leakage from these headphones. People near you will not hear what you are listening to when using these headphones. Also, the pleather pads allow for a great seal which further helps to minimize sound isolation and block outside noise from interfering with your listening experience.
Pro Great for use when outdoors, going for a run or working out
The BTS Pro is quite robust and can withstand some minor splashes of sweat or rain as these are sweat-proof. They are not completely water-proof though, so you should not get them soaking wet.
Pro Good sound quality with focus on the lower frequencies
There is good detail in the highs and the mids can also be heard clearly with very little muddiness. The lower frequencies are boosted, resulting in a good level of depth and power to each bass thump.
Pro Will stay snug on your head
The BTS Pro ear cups sit on the ears with hooks keeping them in place. The flexible connecting band provides good clamping force and can adjust to your head size with continued use. Combined with cushioning on the cups, these are comfortable to wear and will stay in place.
Pro No long cables to deal with
Bluetooth connectivity allows the BTS Pro to connect with smartphones and compatible music players wirelessly, so cables won't be an issue.
Pro Companion iOS app adds extra functionality
66 Audio's Motion Control iOS App gives users added functionality, including EQ control and presets selection, battery status indicator, and even headphone position tracking. These features can improve the listening experience and also minimize the chances of you losing these headphones.
Pro Can last through multiple long listening sessions
With up to 40 hours of playback time at full charge, it's more than enough for most listening sessions. You won't have to charge these frequently.
Pro Hardshell case makes transport more secure and convenient
A hard shell carrying case is included, which can protect the headphones from minor impact and also make transport much easier. The case also has good aesthetics.
Pro Can be folded to a more compact size
They are easy to bring on the go as the ear cups can be folded into the headband. This further reduces the already slim and compact size, making them easy to chuck into a bag when on the go.
Pro Ear cup functions as a remote
The right ear cup of the BTS Pro features buttons for controlling headphone features. You can play/pause tracks, increase/decrease volume as well as answer/end calls by pressing the corresponding buttons, negating the need to pull out your phone to do so.
Pro Allows taking calls
You do not need to take the BTS Pro off in order to answer incoming calls. There is a built-in microphone which allows you to easily take or make calls in the middle of your run or workout.
Cons
Con Earpads may be too small for some
While the ear pads are able to provide ample cushioning, they are quite thin. Large ears may come into contact with the driver housing. This can lead to some discomfort and annoyance, especially when wearing the headphones for long periods of time.
Con Long, non-detachable headphone cable
You may encounter some hassle when using these headphones due to the cable. While the length is quite good at around 3 meters, the cable can get in the way and can be quite difficult to organize. The cable is also non-detachable, so replacing it can be difficult.
Con Some distortion can be heard at lower volumes
There may be audible levels of a scratching sound or distortion when using these at lower volume levels. This can be quite distracting, and can have a negative impact on your listening experience.
Con Motion Control App is for iOS only
At the moment, users of non-iOS devices will not be able to take advantage of the companion app's functionality. However, 66 Audio have announced that an Android app is currently in development.