Beyerdynamic-DT-1990 Pro-vs-Sennheiser-HD660S

Beyerdynamic DT 1990 Pro vs Sennheiser HD660S: Buyer’s Guide

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In our guide to Beyerdynamic DT 1990 Pro vs the Sennheiser HD660S, we explore features, build, audio profiles, comfort and more. To choose the perfect pair, read on..

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  1. Beyerdynamic DT 1990 Pro Over Ear Headphones: View on Amazon
  2. Sennheiser HD660S Over Ear Headphones: View on Amazon

We have tried and tested both titans of open-back headphones for mixing. When it comes to professional audio equipment, having the right pair of headphones is crucial. This will help achieve a superior listening experience.

Beyerdynamic and Sennheiser are two well-respected brands in the audio industry. They consistently deliver exceptional quality and performance. The Beyerdynamic DT 1990 Pro is renowned for its precise and detailed sound reproduction.

In fact, we have classified it as one of the best headphones in our list of the 11 best headphones for mixing.

With an open-back design, it offers a spacious soundstage and excellent imaging. Thus, making it a popular choice among audiophiles and studio professionals alike.

The DT 1990 Pro features Tesla driver technology. So, it ensures accurate and dynamic audio reproduction across the entire frequency range.

Also, it comes with interchangeable ear pads and a detachable cable. Therefore, it provides versatility and convenience.

On the other hand, the Sennheiser HD660S is highly regarded for its natural and balanced sound signature. The headphones come with an open-back circumaural design.

Thus, it delivers an immersive and transparent listening experience.

The HD660S incorporates Sennheiser’s advanced transducer technology. So that you enjoy a smooth frequency response and exceptional clarity.

It also features a lightweight and comfortable design. This makes it suitable for extended listening sessions.

When comparing these two models, there are several factors to consider. Sound signature preference plays a significant role.

The Beyerdynamic DT 1990 Pro headphones have a more analytical and detailed sound.

But the Sennheiser HD660S offers a more neutral and relaxed presentation. Comfort and fit are also important considerations.

Both models provide a comfortable listening experience, but personal preferences may vary. In terms of build quality, both headphones are crafted with attention to detail and durability in mind.

The Beyerdynamic DT 1990 Pro features a robust construction with metal components. This ensures long-lasting performance.

The Sennheiser HD660S, although more lightweight, still maintains a solid build quality.

Beyerdynamic DT 1990 Pro vs Sennheiser HD660S: Overview

To kick things off, let’s take a closer look at each of these headphones individually before diving into the head-to-head comparison.

Beyerdynamic DT 1990 Pro


The Beyerdynamic DT 1990 Pro is a flagship model from the renowned German manufacturer. It is designed with professional audio engineers and audiophiles in mind.

The DT 1990 Pro offers a spacious and accurate sound reproduction, making it an excellent choice for critical listening and studio use.

With its open-back design and Tesla driver technology, this headphone delivers a wide soundstage and exceptional clarity across the frequency range.

Sennheiser HD660S

The Sennheiser HD660S is part of the highly regarded HD series and inherits the legacy of its predecessors.

Known for their neutrality and transparency, Sennheiser headphones have garnered a dedicated following among audiophiles.

The HD660S continues this tradition, providing a balanced sound signature and precise imaging.

With its open-back design and advanced transducer technology, this model offers an immersive and detailed listening experience.

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Beyerdynamic DT 1990 Pro vs Sennheiser HD660S: Sound Quality

One of the primary considerations when choosing headphones is their sound quality. Let’s explore how the Beyerdynamic DT 1990 Pro and the Sennheiser HD660S compare in this aspect.

Beyerdynamic DT 1990 Pro

The DT 1990 Pro boasts a precise and analytical sound signature. The headphone’s Tesla driver technology ensures accurate sound reproduction with excellent transient response.

The bass is tight and controlled, providing a solid foundation to the music. The midrange is detailed and well-balanced, allowing vocals and instruments to shine.

The treble is where the DT 1990 Pro truly excels, with its extended treble range providing sparkling clarity and revealing fine details in the music.

The DT 1990 Pro emphasizes precision and analytical listening

Sennheiser HD660S

The HD660S is revered for its natural and balanced sound reproduction. The headphone’s transducers are specially developed to deliver accurate audio with low harmonic distortion.

The bass is tight and controlled, although not as pronounced as some other models. The midrange is smooth and well-defined, offering an engaging and realistic listening experience.

The treble is detailed and extends well, but it is slightly rolled off compared to the DT 1990 Pro, resulting in a warmer sound signature.

The HD660S focuses on a natural and balanced presentation.

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Comfort and Build Quality

Apart from sound quality, comfort and build quality are crucial factors to consider, especially for long listening sessions. Let’s see how the DT 1990 Pro and the HD660S fare in this regard.

Beyerdynamic DT 1990 Pro

The DT 1990 Pro showcases Beyerdynamic’s commitment to exceptional build quality. It features a sturdy metal construction with adjustable and well-padded headband and ear cups.

The ear cups can swivel, allowing for a better fit and easy storage. The velour ear pads are plush and provide excellent comfort, even during extended listening sessions.

Additionally, the DT 1990 Pro comes with two sets of ear pads, one with a balanced sound and the other with enhanced bass response, providing customization options to suit individual preferences.

Sennheiser HD660S

The HD660S boasts a lightweight design that prioritizes comfort without compromising on durability.

The headphones are primarily made of plastic, which helps reduce weight while maintaining structural integrity.

The adjustable headband and generously cushioned ear cups ensure a comfortable fit. The velour padding on the ear cups adds a touch of luxury and breathability.

Sennheiser’s attention to detail is evident in the sleek and elegant aesthetics of the HD660S.

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Both headphones are designed for long listening sessions, but the choice between the DT 1990 Pro and the HD660S ultimately depends on personal preferences regarding fit and materials.

Beyerdynamic DT 1990 Pro vs Sennheiser HD660S: Features and Connectivity

Now let’s explore the features and connectivity options offered by the DT 1990 Pro and the HD660S.

Beyerdynamic DT 1990 Pro

The DT 1990 Pro comes with two detachable cables, providing versatility and convenience. The coiled cable is ideal for studio use, offering ample length without clutter.

The straight cable, on the other hand, is perfect for casual listening or on-the-go use. Both cables terminate in a 3.5mm connector and include a 6.35mm adapter for compatibility with a wide range of audio devices.

The DT 1990 Pro’s open-back design also ensures excellent stereo imaging and prevents sound pressure build-up.

The Beyerdynamic DT 1990 Pro is a flagship model known for its exceptional sound quality and precise imaging.

These open-back headphones boast a spacious soundstage, making them perfect for critical listening and studio work.

With a frequency response range of 5 Hz to 40 kHz, the DT 1990 Pro captures the finest audio details, ensuring an immersive and transparent listening experience.

Its comfortable design, coupled with replaceable ear pads and cables, adds to the longevity and versatility of these remarkable headphones.

Sennheiser HD660S

The HD660S features a single detachable cable with a 6.35mm connector. Sennheiser focuses on simplicity and reliability with this design choice.

The open-back design of the HD660S enhances the soundstage and provides a natural listening experience.

While the DT 1990 Pro offers more connectivity options with its additional cable and adapters, the HD660S takes a straightforward approach, catering to those who prefer simplicity.

The Sennheiser HD660S is revered for its smooth and natural sound signature, making it a go-to choice for audio enthusiasts.

These open-back headphones offer a balanced and accurate audio reproduction, highlighting the intricacies of your favorite tracks.

With a frequency response range of 10 Hz to 41 kHz, the HD660S delivers a wide frequency spectrum, enabling you to appreciate even the subtlest nuances in your music.

The lightweight and ergonomic design ensure long-lasting comfort, allowing for extended listening sessions without fatigue.

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Beyerdynamic DT 1990 Pro vs Sennheiser HD660S: Price and Value for Money

When it comes to premium headphones, price is an important consideration. Let’s compare the pricing and value proposition of the DT 1990 Pro and the HD660S.

Ultimately, the decision between the DT 1990 Pro and the HD660S will depend on your budget and specific audio preferences. Both headphones provide excellent value for their respective price ranges.

Let’s see how they stand in adding value for money.

Beyerdynamic DT 1990 Pro

The Beyerdynamic DT 1990 Pro is positioned as a flagship model and have a higher price point compared to the Sennheiser HD660S.

However, the DT 1990 Pro justifies its price with its exceptional sound quality, versatility, and customizable experience with the two sets of ear pads.

It is an excellent investment for professionals and audiophiles who demand the utmost accuracy and detail in their audio.

Sennheiser HD660S

On the other hand, the Sennheiser HD660S offers a more accessible price point while still delivering a premium listening experience.

Its natural sound signature, lightweight design, and trusted brand reputation make it a popular choice among discerning audio enthusiasts who seek high-quality performance without breaking the bank.

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Pros and Cons: The Bad and The Good of Beyerdynamic DT 1990 Pro vs Sennheiser HD660S

To summarize the strengths and weaknesses of both headphones, let’s take a look at their pros and cons:

Beyerdynamic DT 1990 Pro


  • Exceptional sound quality with precise and analytical reproduction
  • Wide soundstage and detailed imaging for immersive listening
  • Versatile design with two sets of customizable ear pads
  • Sturdy build quality and durable metal construction
  • Detachable cables for convenience and flexibility
  • Ideal for professionals, audiophiles, and critical listening


  • Higher price point compared to some other models
  • Open-back design limits isolation and is not suitable for noisy environments
  • Higher impedance requires dedicated amplification for optimal performance
  • Bulky size may not be ideal for portable use or on-the-go listening

Sennheiser HD660S


  • Natural and balanced sound signature with accurate audio reproduction
  • Lightweight design for extended comfort during long listening sessions
  • Trusted Sennheiser brand reputation and build quality
  • Detachable cable for convenience and ease of replacement
  • Accessible price point for a premium headphone
  • Suitable for a wide range of genres and audio applications


  • Bass response is not as exciting as expected
  • Treble extension is slightly rolled off compared to other models
  • Plastic construction doesn’t feel as premium as metal counterparts
  • Limited cable options compared to the DT 1990 Pro

Need amplification for optimal performance lower-powered devices

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Conclusion: Who is the Winner Between the Two Mixing Cans

We have tested and used these headphones for mixing. In the battle of Beyerdynamic DT 1990 Pro vs Sennheiser HD660S, we’ve explored the key aspects that set these headphones apart.

The DT 1990 Pro impresses with its precision and analytical sound reproduction, along with its versatile design and customizable ear pads.

On the other hand, the HD660S offers a natural and balanced sound signature, lightweight comfort, and a more affordable price point.

Ultimately, the choice between these two exceptional headphones boils down to your personal preferences, budget, and specific audio requirements.

There is no winner or loser between the two. Each has its own share of pros and cons. Whichever model you choose, both the Beyerdynamic DT 1990 Pro and the Sennheiser HD660S are sure to elevate your listening experience.

Frequently Asked Questions (FAQs): What You Need to Know Before Buying

A: Users want to understand the key distinctions in terms of sound quality, design, comfort, and other features between these two premium headphones.

A: Audiophiles often seek headphones with a neutral sound signature. Enthusiasts want to know which of these headphones offers a flatter, more accurate audio representation.

A: Some buyers may be looking for studio headphones. They inquire about factors like sound isolation, durability, and overall performance in a studio environment.

A: Budget-conscious buyers want to make sure they are getting the best value for their investment. They seek insights into whether the performance and features of these headphones justify their respective price points.

A: While the Bose QuietComfort 45 headphones are designed primarily for comfort and noise cancellation, they are not marketed as sweat-resistant or specifically designed for workouts. It’s recommended to avoid exposing them to excessive moisture to prevent any potential damage.


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