When comparing Sony MDR 7506 vs 66 Audio BTS Pro, the Slant community recommends Sony MDR 7506 for most people. In the question“What are the best headphones?” Sony MDR 7506 is ranked 7th while 66 Audio BTS Pro is ranked 35th. The most important reason people chose Sony MDR 7506 is:
The bass is just right. It may not have the deep sub-bass extension that bass heads crave for, but what is there is fast, tight and punchy. The mids are clear with a hint of warmth, which make vocals and guitars sound very clear and you can easily hear their sonic nuances . The reproduction of highs is the part that these headphones really shine. They are crystal clear and highly detailed without adding hiss or harshness to the overall sound. Cymbal crashes and pings, for example, are very close to what you would hear if they were played right in front of you.
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Pro Clean and balanced sound with smooth bass and detailed highs
The bass is just right. It may not have the deep sub-bass extension that bass heads crave for, but what is there is fast, tight and punchy. The mids are clear with a hint of warmth, which make vocals and guitars sound very clear and you can easily hear their sonic nuances .
The reproduction of highs is the part that these headphones really shine. They are crystal clear and highly detailed without adding hiss or harshness to the overall sound. Cymbal crashes and pings, for example, are very close to what you would hear if they were played right in front of you.
Pro Very affordable price for the sound and quality build that you get
Despite being sub $100, the MDR 7506 can compete against headphones up to twice the price. These make for great headphones if you are just starting to get serious about your audio and you want a relatively inexpensive yet quality purchase.
Pro Reliable headphones due to solid build quality
The MDR 7506 is built outstandingly well, with high quality materials and with little to no creaks and unnecessary flex. These headphones have been around since 1991, which has given Sony a lot of time to refine the manufacturing process of these cans.
Pro Easy to bring on the go due to the collapsible design
The yokes are collapsible and fold into the headband, reducing the headphones to a much more compact size. Included with each purchase is a synthetic leather pouch for added protection for the headphones when taking them on the go.
Pro Minimal sound leakage due to the closed back design
These leak very little sound compared to other over-ear headphones. The rear side of the ear cups is fully closed, which effectively minimizes sound leakage. With these, you can fully enjoy your music without disturbing people beside you.
Pro Has two separate ports for listening
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.
Con Cable is quite long and non-removable
The headphone cable is coiled and is about 10 feet long. This is great for studios, however walking around in public with these headphones on can be awkward. The cable cannot be removed and has no remote or mic.
Con ear pad material will flake off after a short while.
You can use Brainwavz replacement earpads as an alternative.
Con Can be very picky with audio sources
Due to how accurate sounding these are, you will be able to hear minute details from the sound, including hiss, distortion, and the like. To get the most out of these headphones for music enjoyment, you will want to have a great audio source.
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.