Sennheiser HD 599 closed back headphone review

Sennheiser HD 599 closed back headphone review

Sennheiser is a big name when we talk about headphones and music stuff. They are known for making really good headphones that sound great.

The HD 599 is one of the headphones that many people like. It fits right in with their other models, offering a nice mix of quality and features that make it appealing to both serious music fans and people who just love listening to their tunes with extra clarity.

This model is special because it tries to give you a really good listening experience without costing too much money.

Unboxing and First Impressions

Sennheiser HD 599

Sennheiser HD 599

  • Audiophile-grade sound with minimal distortion.
  • Luxurious, long-wear comfort.
  • Dual cables for home and portable use.
  • Premium ivory design with matte finish.
  • Open-back for spatial sound experience.

When you open the box of the Sennheiser HD 599, you’re going to find a couple of things waiting for you. First off, there are the headphones themselves.

Then, there are two cables for connecting the headphones to different devices, an adapter plug to make sure you can use the headphones with a wide range of audio equipment, and some literature that includes instructions and other useful information about the headphones​​.

Right from the start, you’ll probably notice a few key things about the HD 599. The headphones are mostly made of plastic, but don’t let that fool you.

They feel really solid and durable, like they can handle being used a lot without breaking.

The design is pretty sleek and has a nice look to it, which means they’re not just good at making sounds but also look cool when you’re wearing them.

The headband has a thick pleather material, and the ear pads are made of velour, which is a soft and comfy fabric. This all adds up to make the HD 599 super comfortable to wear, even for a long time​​.

The open-back design of these headphones is something you might find interesting. It means the back of the ear cups are open, allowing sound to mix a bit with the air around you.

This can make your music feel more natural and spacious, but it also means that sound can leak out, and outside noise can get in, so they might not be the best choice for noisy places​​.

Overall, when you first get your hands on the HD 599, you’re likely to be pretty impressed with how they’re made, how they look, and how they feel.

They promise a lot in terms of audio quality and comfort, making the unboxing experience something to look forward to.

Design and Build Quality

The Sennheiser HD 599 headphones are made with a lot of care to make sure they both look good and last a long time. Here’s a closer look at what makes them stand out:

  • Materials: The headphones are mostly made of plastic, which might sound simple, but it’s actually pretty tough. This choice helps keep the headphones light, so they’re comfortable to wear for a long time. They also have a thick pleather headband and velour earpads. The pleather headband adds a touch of class, while the velour earpads are super soft and make sure your ears don’t get tired.
  • Build Quality: Even though they’re light, these headphones feel strong and well-made. You can tell Sennheiser didn’t just focus on how they sound but also paid a lot of attention to making them durable.
  • Open-Back Design: One of the coolest things about the HD 599 is its open-back design. This isn’t just about style; it affects how you hear your music. Open-back headphones let some sound escape and let air in, which can make what you’re listening to feel more like it’s happening around you, not just in your head. But, there’s a trade-off: they don’t block out noise from outside, and people nearby might hear what you’re listening to.

This design makes the HD 599 great for listening to music at home in a quiet place, where you can really enjoy the depth and space of the sound they create.

Comfort and Fit

When you put on the Sennheiser HD 599 for the first time, you’ll notice how comfy they feel. These headphones have plush ear pads and a headband that are soft and don’t press too hard against your head. This is great for when you want to listen to music for a long time without getting a headache or sore ears.

  • Plush Ear Pads and Headband: The ear pads and headband are made from a soft material that feels nice and gentle. This means you can wear the headphones for hours and still feel comfortable.
  • Clamp Force and Weight: The HD 599 is designed to be light on your head. They don’t squeeze your head too tight, which is good because it means they won’t become uncomfortable after wearing them for a while.

Overall, the HD 599 is made to be as comfortable as possible. Whether you’re listening to music at home, studying, or just relaxing, these headphones make sure you can do that for a long time without any discomfort.

Sound Quality

  • Frequency Range: The HD 599 covers a broad frequency range from 12 Hz to 38,500 Hz, ensuring you hear a wide spectrum of sounds​​​​.
  • Impedance and SPL: With an impedance of 50 ohms and a Sound Pressure Level (SPL) of 106 dB, they’re suitable for mobile listening, possibly benefiting from slight amplification​​.
  • Total Harmonic Distortion (THD): Less than 0.1%, indicating a clean and distortion-free listening experience​​.

Lows (Bass)

The low end is described as solid, with clean and precise bass impact, though it can sometimes overshadow the mids in certain tracks. This balance provides a foundation that’s present without being overwhelming​​.


The midrange performance is generally good, offering clarity and detail. However, there’s some compression in the upper mids, which might affect the presentation of male vocals slightly, but female vocals remain largely unaffected​​.

Highs (Treble)

The highs are rich in detail, with a sparkle that enhances the listening experience without becoming piercing. This contributes to a vibrant and lively sound profile that can handle a variety of genres and recordings​​.


Thanks to its open-back design, the HD 599 presents a decent soundstage that offers good placement of instruments and vocals, though it may lack the depth seen in models like the HD 600. This creates a more intimate listening experience that still allows for a sense of space and directionality in music​​.

Performance in Various Settings

The Sennheiser HD 599 headphones are pretty special, but they work best in certain places because of their open-back design. This design makes them not so good at blocking out noise around you. So, if you’re in a noisy place, you might hear a lot of that noise. And, if you’re listening to music, people nearby might hear it too.

  • Open-Back Design: This means the HD 599 is really good for when you’re in a quiet room. You get to hear your music in a way that feels like you’re in the same space as the music. It’s a bit like being at a live concert.
  • Lack of Sound Isolation: Since these headphones don’t block out noise, they’re not the best choice for places like public transport or busy offices. But this also means they give a more natural sound, which is great for certain types of listening.

Ideal Use Cases:

  1. Home Listening: The HD 599 shines here. You can relax in your quiet space and get lost in your favorite tunes, enjoying every little detail in the sound.
  2. Studio Use: If you’re making music or mixing tracks in a quiet studio, these headphones can help you hear every layer of the sound clearly. Just remember, they’re best in a quiet environment.

Comparisons with Other Models

FeatureSennheiser HD 569Sennheiser HD 599
DesignClosed-back for noise isolationOpen-back for natural soundstage
Ear PadsPlush velour for comfortLuxurious velour for extended comfort
ConnectivityWired, with two cables for versatilityWired, with robust cable options
Sound ProfileAudiophile reproduction, focused soundstageAudiophile sound, expansive soundstage
Additional FeaturesE.A.R technology for direct soundIntense sound and emotion with precise engineering
Ideal UseFor listeners needing noise isolationFor immersive audio experiences in quiet settings

Read also: Sennheiser HD 569 vs 599: Which one is better?


The Sennheiser HD 599 shines with its open-back design, delivering an immersive soundstage and detailed audio, making it perfect for audiophiles who enjoy listening in quiet environments. Its comfortable velour ear pads enhance long listening sessions, although its open nature may not suit noisy places or those needing privacy. Given its sound quality, comfort, and build, the HD 599 offers significant value, standing out against competitors for those prioritizing audio experience over noise isolation, at its price point.