Sennheiser HD 450 BT Review

We are looking at the 2021 updated version of the HD 450SE. Before I begin, let me say that I haven’t gotten to own the previous version of these headphones. But I have read a fair amount of reviews on them, so I will occasionally mention where I think this new version(Sennheiser HD 450 BT) has improved. With respect to the previous one after having been using them for approximately a month.

The impression they give (corroborated later by reading a review of the model) is that the default EQ slightly boosts the lows and high-mids (instruments). Which are usually settings that everyone likes for the general use of headphones. Obviously, because of this, they’re not exactly studio headphones, but they’re not intend to be either. Honestly, if I did keep them, I doubt I would ever have touched the default settings. If we add to this 30 hours of autonomy, hands-free function, access to assistants (Siri, Google, etc.), and ANC, the truth is that the cocktail for the price is more than appetizing.

Things we like

  • Nice sound quality
  • Battery life is good
  • Very good puffy cutions

Things we don’t like

  • Plastic built
  • cusions are good but it will pain your ears.
  • It’s costly as well

Price and availability

Sennheiser HD 450 BT comes with a Black and White color variants. It is price Rs.11,990, which is bit costly for midrange consumers. If you want to buy this headphones than go to company’s official website (Rs.14,990). Or else go to Amazon (Rs.11,990).

who should have to buy this headphone?

  • I think travelers are the right choice for this headset. And the reason is active voice cancellation.
  • It is also best choice for music lovers, as they offer a perfect balanced sound profile.

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Box Content

Pretty good. The packaging is made of brown cardboard with the product’s screen printing, and the truth is that it looks quite good. When we open it, we find that the headphones are firmly fixed in the box. That is avoiding possible damage during transport; all a success.

When we finish removing everything we will have, on the one hand, the headphones wrapped in a plastic cover to avoid scratches. And in contrast, the different accessories (charging cable, jack cable, instruction manual, and a transport case).

Sennheiser HD 450 BT: Design

Sennheiser HD 450 BT

What problem do they have then? Well, both the pads and the arch itself of the helmets are small for me, which is a bit tight for me. I am a man with an XL head (motorcycle helmet size) and a normal auditory pavilion for my height and complexion. I don’t consider the arch a problem because it sure gives a bit of use with use. But the pads stay on my ears, not around them as they should be, and although the padding is good. The fact is that it is a bit annoying And it’s not how circumaural headphones should look. This does not mean that these helmets are not for you, for men with heads a little smaller than mine or, above all, women, they can be an ideal model.

To end the ergonomics issue, all the controls are on the right side of the earpiece. Which lacks any markings to identify what each button does, so the first time you see the earphones it takes a little back. I think an aspect that could certainly be improved. Once you take a look at the quick guide and use them for a few minutes, you get them.

The construction quality is very correct for the price range, with quality plastics and silicones, flexible. Somehow, without those “creaks” when handling them that give that feeling of shabby when the plastic does not measure up. With the earphones in hand, you do miss the fact that the speaker parts and ear pads rotate a bit more. But the fact is that they have more than enough play for a good fit once you put them on. They come with a correct fabric cover, but it will not protect them much against blows and so on.

Touch controls or Buttons

Another of the points in which it has changed compared to the previous model.

Now, the button to control active noise cancellation (ANC) is place on the same button that is use for power on and off. A short press turns ANC on or off while a long press turns the headphones on or off. I think this is a major improvement over the previous system. Where you had to simultaneously press the volume up and volume down buttons to control ANC.

They have added a new button, located in the back area of ​​the keypad, that serves to activate the Alexa voice assistant. To many, it will seem silly, but the truth is that if you spend a few minutes familiarizing yourself with the assistant. It can be more useful than it seems in the headphones.

There is a “button” to play forward/backward, as well as to pause/continue or answer a call. Which is quite handy too; It is a slider and pushes a button in which sliding it goes from the song and pressing it answers the call or pauses/continues playback.

Although it is not a “keyboard” issue per se, mention that now the charging connector is USB-C type, another good change from the previous version that used micro-USB.

In general, the buttons are easy to locate once you’ve used the headphones a couple of times, they have a size and design that makes it difficult to make a mistake when pressing them and they are quite responsive.

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Sennheiser HD 450 BT: Comfort

It is one of those points in which they have improved compared to the previous version. I am a person with a fairly large head and have been able to wear them for hours without noticing any discomfort from excessive pressure.

Yes, it is true that the upper band could be a little more padded, but this would make them more voluminous and if you spend some time looking for the length that best suits your head, the pressure in that area disappears and, with it, any upset about it.

The pads are very bulky and padded, offering great comfort. I have come to use them even with sunglasses on and the truth is that I have not notice any discomfort (again, this will depend on the length adjustment that is made; the more it is shorten, the greater the pressure). The material they’re made from is incredibly comfortable, molding to the shape of your ear and then springing back when you take them off.

I have medium-size ears, and the truth is that when I put them on I have the feeling that the entire ear is includes in the central space of the pillow. I have also try to force a placement in which part of the ear is left out, since I have read that one of the main problems of the previous version was precisely that, and even so the comfort has remain the same thanks to the adaptability of the pads.

Sennheiser HD 450 BT: Sound Quality

Sennheiser HD 450 BT

We come to the most important point… and where these headphones stand out the most. We have here the Sennheiser house brand sound, neutral but not for that reason poor (far from it).

All frequencies are there, and all are reproduce with great quality. The basses are not particularly boost, as is the custom nowadays in most Auris. However, they are perfectly noticeable and they rumble more than I expected, but without covering the mids or the treble.

The word that defines the sound of these Auris is balanced, but if for whatever reason you are not completely satisfy when listening to music on your mobile. You can always download the Sennheiser app that allows a certain degree of equalization to tweak it up to leave them to your liking. In my case, after a lot of tinkering with the app, I ended up leaving them in the default profile, since I think it’s the most balanced and the one that best defends itself in any field.

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Active Noise Cancellation

Sennheiser HD 450 BT is not the best ANC on the market, but it works wonderfully to eliminate most of the ambient noise that we will find on the street (bus/car engines, construction noise, etc). It doesn’t completely eliminate all noise, but it does a pretty good job of passively isolating the earpads so they can be heard in virtually any ambient noise condition.

A point to note is that activating the ANC does NOT produce that sensation of “clogged ears” or being “submerge” that does appear when activating this mode in headphones from other brands. Which is appreciate since said effect is usually quite annoying and even dizzy. For me it is not a problem: as an audiophile. I know how much the ANC goes to distort and bastardize listening. Therefore this was not the point of my purchase. The point was to have headphones that enhance the music – and in this, as always, Sennheiser is at the top.


The headphones have a microphone and active noise canceling so that you can make phone calls even in noisy environments. This also works very well. Unfortunately, this microphone can only be use as a headset on the PC to a limited extent. It is sufficient for conferences, in order to communicate with fellow players while gambling. Moreover, the purchase of an extra microphone is necessary since the sound of the microphone is good, but the sound of the game is greatly reduce in quality. This is probably not technically possible otherwise. Here, however, one must clearly state that Sennheiser never claimed this and that it was more of a hopeful attempt on my part to expand the area of ​​application beyond the manufacturer’s specifications.

Sennheiser HD 450 BT: Battery

Very good battery life. This is the main advantage compare to the last generation, and it is that we went from a duration of about 19 hours to 30 hours. The best part is that they take exactly the same time as the last generation to charge, 2 hours.

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Sennheiser HD 450 BT: Connectivity

Sennheiser HD 450 BT

Really easy. As soon as they are turn on, they will enter pairing mode UNLESS the BT of the last device they were pair with is active (in which case it connects to it automatically). It will be enough to look in the list of devices for the device “HD 450SE”. I have been able to pair them with two devices at the same time, but the result has not been good, so I recommend pairing them to a single device.

In my case, I have used them both with my mobile phone and with my Samsung SmartTV, and with my PC (where I have a BT adapter), and in all cases, the result has been very satisfactory. The use of the aptX codec means that latency is minimal on compatible devices, so they are a good option to use to watch a video or even play games. Be careful, the latency will always be somewhat higher than when they are use in wired mode, but in most cases, it will be imperceptible.


This a great review of an already very good product. Very comfortable to wear and use, with a fantastic sound, balanced and adaptable through its own app, and an ANC system that, without being the best on the market, does comply to end up achieving fantastic isolation from external noise and is in a completely different league from systems of this type that incorporate the cheapest headphones.

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