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Sennheiser HD 650 vs 660sSennheiser HD 650 and Sennheiser 660S both are standard headphones. But testing all the features and usabilities of these Sennheisers devices, I highly suggest you go with Sennheiser 660s.

Why I Suggest Sennheiser 660s?

  • Sennheiser 660S is the definition of clarity; the sound is clean, crisp, and stays true to the original recordings across the board. On the other hand, the Sennheiser HD 650 is not 100% genuine to the original recording. 
  • It offers 104dB sensibility that will ensure the louder sound of your headphones while listening. But, another one has 103dB, which is less than the recommended one.
  • The Sennheiser 660S is a compact gadget that will provide you with a better user experience for a longer time. In contrast, with the Sennheiser HD 650, some issues appear after using the right or left earphones for months or days. 
  • The 660s is a new model of earphones that will provide more detailed audio quality. But on the other hand, the Sennheiser 650 is an old model headphone with fewer details audio sound.

If you go through all the improved features and properties mentioned above of this headphone, you must buy the Sennheiser 660S as it offers some fantastic usability. In addition, it can provide you with a clear and crisp sound, 104dB sensibility that will ensure the louder sound of your headphones.

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Similar Features

  • The frequency response of these Sennheiser headphones is 41000 Hz that will provide you excellent and accurate sound quality when you listen to music -low, middle, and high tones.
  • These over-ear earphones deliver good isolation, and you can expect a better sound even amongst public places.
  • They are wired headphones, and a three-meter cable has been provided with them, which is good enough to connect and get a hassle-free user experience.
  • Twenty-four months of warranty is provided with these Sennheiser headphones. You can get repaired or replaced within the period, but you must show the original purchasing papers.

Quick Comparison: Sennheiser HD 650 vs 660s

Specification Sennheiser HD 650  Sennheiser 660s
Editor’s Rating 4.7 out of 5 4.8 out of 5
Sensitivity  103 dB 104 dB
Frequency Response 41000 Hz 41000 Hz
Nominal Impedance 300 ohm 150 ohm
Form Factor Over-Ear Over-Ear
Cable Length  118 inches   118 inches  
Jack Plug 3.5 mm 6.35 mm
Connectivity Technology Wired Wired
Color Gray  Black
Product Dimension 12.4 x 10 x 4.33 inches 10 x 4.25 x 12.6 inches
Item Weight 0.57 lbs/ 9.1 ounces (260 grams) 0.58 lbs/ 9.3 ounces (260grams)
Warranty Twenty four months  Twenty four months

Similarities and Differences: Sennheiser HD 660s vs 650

Design

One of the essential things that we should consider when we buy headphones is the design. These Sennheiser headphones are stunning in terms of specifications and look excellent to see. The weight of these is 0.57 lbs or 260 grams, and they are very lightweight gadgets. And, the dimensions of the Sennheiser 650 is 12.4 x 10 x 4.33 inches, and the Sennheiser 660S 10 x 4.25 x 12.6 inches.

They are different in terms of color. The Sennheiser 650 is available in one color, which is gray, and the Sennheiser 660S is black.

Nominal Impedance

The nominal impedance ensures the delicate and vivid sound quality of the headphone. In this regard, the Sennheiser HD 650 is the best choice as it offers 300ohm that will provide you the best out of it. On the other hand, the Sennheiser 660S is featured with only 150ohm. So, considering the ohm, you can go with the Sennheiser HD 650 if you want. 

Cable Length and Jack Plug

These are the wired headphones. So, we must know about the length of cable of that particular headphone before deciding to buy. The satisfactory three-meter length cable provided with these Sennheiser headphones -is large enough to get connected.

In addition, you will get a 3.5mm jack plug with the Sennheiser HD 650, and 6.35mm with the Sennheiser 660S.

Frequency Response

The sound level depends on a particular individual as some people like louder sounds and some do not. But, everybody likes to have a quality sound. The frequency response will provide the best accurate sound, and in this respect, these Sennheiser headphones are excellent in getting better audio while playing music. It may be low, middle, or high volume but with the best out of it.

Sensitivity

The sensitivity ensures the louder sound of the headphone. And, this is one of the essential features to check before buying any one of them. On this particular issue, the Sennheiser 660S offers you 104dB sensitivity, providing you with a high sound. On the other hand, the Sennheiser HD 650 has 103dB, which is slightly less than the other one. So, I would suggest you go with the Sennheiser 660S as it offers a louder sound.

Form Factor

Most of the headphones come with various form factors like over-ear, in-ear, and on-ear. Among all of these, I would love to have the over-ear one as it offers a comfortable user experience. These Sennheiser headphones are over-ear that will deliver a flexible user time. You can use them for a longer time. If you are a gamer, these will be a better choice for you, plus you will get the best out of it. 

Durability and Warranty

Sennheiser has been producing so many quality headphones every year, and they are an older company. They never compromise the quality of their products. In addition, they are providing twenty-four months of manufacturer warranty. You can use the guarantee within this period if there is any manufacturer’s fault with the headphone. 

But, to get the benefits of the warranty, you must keep the device from any harm by yourself. They will accept it if the product looks fresh and you have the purchase receipt with you. Most importantly, the headphone has to be bought from an authorized shop of Sennheiser; otherwise, you will not be eligible for the warranty. 

Final Words

Therefore I would highly recommend you go with the Sennheiser 660S headphone considering their features and usability mentioned above. This headphone offers some excellent properties. It can provide you with a clear and crisp sound, 104dB sensibility that will ensure the louder sound of your headphones.

Most importantly, it is a new model of Sennheiser, but another one is an old model. 

If you disagree with me, you can buy the Sennheiser 650 as well if you consider the 300 ohm that it has, which will provide crystal clear sound.

Frequently Asked Questions about Sennheiser HD 650 and 660s

Question: Does the Sennheiser HD 650 support android phones?

Answer: The 650-s have a 300-ohm impedance. This makes them not the best option for an Android or iPhone handheld. For that application, you are better off with a lower impedance headset.

Question: What is the ohm of the Sennheiser HD 650, and is higher better?

Answer: The 650-s have a 300-ohm impedance. Ohm is the resistance that the headphones present to the incoming signal. Higher or lower is not necessarily better. But a higher number will require more power to make the phones play loud. For instance, an iPhone 6 can power these, but they will not be super loud. If you want loud, you will probably need to invest in a dedicated headphone amp. Or buy a pair of phones with a lower ohm rating.

Question: Are these Sennheiser headphones good for gaming?

Answer: They are not surrounded, but they are great for gaming. You can hear every detail, and they are comfortable even when used for long.

Question: Are these Sennheiser headphones comfortable with long-term use?

Answer: Extremely comfortable – I sometimes wear them for very long periods (eight to ten hrs on and off but mostly on). I have had other headphones that would make my ears sore because the cans were not big enough or did not sit right on my head, but I have never had that problem with these.

Question: how long is the cable of the Sennheiser 660S?

Answer: The Sennheiser 660S comes with a 3-meter cable.

Question: Does the Sennheiser 660S have any warranty? And How do international customers claim their guarantee?

Answer: Yes, there is an international warranty when purchased from an authorized retailer. To use it outside of the USA, contact the Sennheiser Service partner in the country in question.

Question: Does the Sennheiser 660S have noise-canceling? Is this a significant advantage?

Answer: Nope, no noise-canceling and being open back in a noisy environment are not good. These are meant for focused listening in a quiet space. 

Question: Where are these Sennheiser headphones manufactured?

Answer: These Sennheisers are made in Ireland. 

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