Beyerdynamic DT 990 Pro vs Sennheiser HD 650

As a user, you always want more and quality for your money. You cannot walk in a shop and pick a Beyerdynamic DT 990 pro or a Sennheiser hd650 without comparing their unique features. Both are good open-back headphones for decent music.

Beyerdynamic DT 990 Pro

However, a Beyerdynamic DT 990 pro produces more bass whereas a Sennheiser hd650 produces smoother sound and lacks bass. You would like to take a look at the design, weight, cables, sound quality, connectivity, signal to noise ratio, value and sensitivity. Below is a detailed analysis of both so that you can serve your preferences by choosing what might be the best for you.


Sennheiser hd650 is a bit richer inaccuracy as it tries to balance the produced sound without defining other features such as bass more than vocals or instruments. However, the rule of accuracy may not matter to other users as they might prefer a Beyerdynamic DT 990 pro that defines bass in an excellent way.

Sound quality

Sound quality is characterized by various features inclusive of frequency, sound pressure level, impedance. The frequency response determines the sound quality produced by headphones. Beyerdynamic DT 990 pro headphones have a lower frequency that makes it give out a stronger and deep bass whereas a Sennheiser hd650 has a higher frequency that makes it produce a clearer and sensational treble. 

Sennheiser hd650 headphones might lack volume if plugged directly on your phone or laptop which can be an advantage to people who do not like too much volume. In as much as both headphones showcase their unique features of sound quality, it is now your choice as a user to choose a pair of headphones rich in bass or treble.

Sennheiser HD 650

It can be easier for you to choose one if you pay more attention to the kind of music you listen to. If you are a fan of jazz and dancehall music, you might prefer headphones that produce more bass. If you like pop and jazz music you are more likely to go for the Sennheiser hd650 since they produce good treble which defines instruments such as piano and guitar well.


The sensitivity of the Beyerdynamic DT 990 pro headphones is 99.13 dB/v spl by the voltage and 93.40 dB/mWSPL. The sensitivity of the Sennheiser hd650 headphones is 105.10 dB/V SPL by the voltage and 100.48 dB/mW SPL by the power. 


Sensitivity plays an important role in sound as it determines the loudness of the headphones. The sensitivity by power affects the efficiency of the headphones. If the headphones have high sensitivity it means that the required power for the headphones needed will not be much. In comparison to the above two headphones, it is then a matter of choosing the headphones that have great sensitivity and use less power or vice versa.


Beyerdynamic DT 990 pro headphones do come with a tangle-free cable. Sennheiser hd650 headphones do come with three cables but without a microphone. You cannot use them for calls and voice chat. Although it has a detachable cable meaning that you can use alternative cables, it can be easily broken. Sennheiser HD640 earphones have a cable made from highly conductive OFC copper. Tangling cables can be boring on a busy day. You might need a tangle free cable for an amazing experience. Beyerdynamic DT 990 pro headphones do not have a detachable cable. 


Both headphones are designed in a similar way. They are quite appealing to people. They have an open design which attracts a lot of people. The difference is Sennheiser HD650 headphones are labelled “Sennheiser” on the outer side of the headband but with time the letters come off. Both have incredible quality padding. Their headbands are adjustable.


Both headphones are durable to the extent that they can withstand minor drops. They are known for their superb comfort and convenience. No matter which pair of headphones you are going to choose between the two, durability is guaranteed. They are both made out of light material which makes them light. In this case, portability is guaranteed. The plastic material used on the ear cups makes them strong enough not to come off. 

Beyerdynamic DT 990 pro headphones and Sennheiser hd650 headphones have stereo speakers that deliver excellent sound as they deliver from independent channels. Stereo speakers produce stereo effects. They are two separate speakers built into a device from both the right and left channels. These are what makes both headphones richer in sound.  They are also comfortable as they come with earcups that fully enclose your ears. They do have straight plugs which makes it easier to make electrical connections and you will not have to look at the headphone jack.

Advantages of using Beyerdynamic dt 990 pro headphones

They are comfortable, loud, good sound quality, an addition of an amplifier can be awesome, the cups are easily replaceable, perfect for studio, durable, replaceable parts are readily available, long cord, they have much more soundstage, earpads are soft, light, great for gaming and music production. They are also great for professional mixing and editing.


Bass is extremely defined and it has a non-detachable cable. 

Advantages of using Sennheiser hd650 headphones

They have a superb, balanced sound quality which is very close to neutral sounding, perfect for long hours. They are comfortable and fit well. Sennheiser hd650 headphones have matched left and right channels for quality and stable sound and they are not too sensitive.


There is a need to replace certain parts after a certain period of time. The headband can become loose as well as the ear pads after a long period of usage. However, you can easily order and replace them. They do lack sub-bass frequencies.

The above-detailed review takes you to your preferred pair of headphones based on usage, design, sound quality and accuracy. There is a slight difference between the two and it remains a matter of choice. You need to observe closely otherwise they might just look the same.

Rob is a musician and audiophile at heart. He plays 5 instruments. Besides music, Rob enjoys a good whiskey and the outdoors.
Robert S. Thompson
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