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Sennheiser 599 vs Audio Technica M50x – Check Which One Is Best & Why?

Sennheiser 599 & Audio Technica M50x share many similarities, but there are also important differences, such as quality, performance, features, design, and connectivity. If you want the best one between them, I Would recommend the Sennheiser 599 rather than the Audio Technica M50x. 

Why Do I Recommend The Sennheiser 599

  • The Sennheiser HD 599 features an open-back acoustic design for a wider, more natural soundstage that enhances spatial awareness and instrument separation, while the Audio-Technica ATH-M50x uses a closed-back design.
  • Sennheiser HD 599 comes with soft velour ear pads for cooler, breathable comfort during long listening sessions, whereas the Audio-Technica ATH-M50x comes with synthetic leather pads.
  • It has a lighter 250-gram build for reduced head pressure and easier all-day wear, while the Audio-Technica ATH-M50x has a heavier 285-gram build.
  • The Sennheiser HD 599 includes 0.7 pounds lower clamping force for a relaxed fit and less jaw pressure, whereas the Audio-Technica ATH-M50x uses a clamping force closer to 1 pound.
  • Sennheiser HD 599 features 38,500 Hz frequency response for enhanced treble detail and airy high-end reproduction, while the Audio-Technica ATH-M50x reaches only 28,000 Hz.
  • It comes with larger oval earcups for a more spacious fit and better ear coverage, whereas the Audio-Technica ATH-M50x uses smaller round earcups.
  • The Sennheiser HD 599 supports a more neutral midrange tuning for accurate vocal and acoustic instrument reproduction, while the Audio-Technica ATH-M50x features a V-shaped sound signature.
  • Sennheiser HD 599 includes a detachable 3-meter cable for convenient home or studio setups without strain on connectors, whereas the Audio-Technica ATH-M50x provides shorter straight wires.

Maybe the Audio Technica M50x price can make you comfortable because it’s a little bit cheaper than the Sennheiser 599. But you have to compromise all the above-mentioned features. Now the Decision is Yours. I hope it was helpful to choose the right one.

Side By Side Comparison

FeatureSennheiser 599Audio Technica M50x
Enclosure TypeOpen-backClosed-back
Impedance50 Ω38 Ω
Sensitivity (1V)106 dB SPL~99 dB
Frequency Response12-38,500 Hz15-28,000 Hz
Weight (w/o cable)~250 g~295 g
Cables IncludedTwo detachable cables: 3 m + 1.2 m, adapter includedThree cables (short, long, coiled) + 1/4-inch adapter
Pad MaterialVelour padsPleather (synthetic leather) pads
Isolation (passive)GoodModerate
SPL / Max VolumeMax SPL ~120 dBMax SPL higher
PriceCheck Sennheiser 599 PriceCheck Audio Technica M50x Price

What Common Both Can Do?

  • Dynamic Driver Type: Both headphones use dynamic transducers, which employ a voice coil and diaphragm to produce sound. This design is reliable and efficient, giving them broad frequency coverage and natural tonal balance.
  • Over-Ear Circumaural Fit: Each model fully surrounds the ears, providing comfort and a spacious listening experience. The circumaural fit helps with passive isolation and supports extended sessions without pressing directly on the ears.
  • Wired Connection: Both are traditional wired headphones, ensuring zero latency and consistent audio quality. This makes them ideal for critical listening and professional monitoring where wireless lag or compression could be an issue.
  • Detachable Cable: Each includes a removable cable, making it easy to replace or swap lengths as needed. This feature adds longevity and flexibility for different listening setups.
  • 3.5 mm Plug with 6.3 mm Adapter: Both provide a standard 3.5 mm plug and a 6.3 mm adapter, allowing direct connection to portable devices and professional equipment. This ensures compatibility with everything from smartphones to studio gear.
  • Stereo Output: Both deliver true stereo sound, enabling accurate left-right imaging. Stereo reproduction is essential for music enjoyment and mixing tasks.
  • Passive Noise Isolation (basic): While the HD 599 is open-back and the M50x is closed-back, each provides some passive isolation from external noise due to the over-ear design and padded ear cups. This helps maintain listening focus in moderately quiet environments.
  • Impedance Range for Portable Devices (30–60 Ω): With impedances of 50 Ω and 38 Ω, both headphones can be driven easily by portable players, laptops, or audio interfaces without requiring a dedicated headphone amplifier.
  • Sensitivity Near 100 dB SPL: Both achieve around 100 dB SPL at standard input, so they can reach loud, detailed playback without excessive power. This ensures strong volume from a variety of sources.
  • Frequency Response Below 20 Hz: Each extends into sub-bass frequencies, allowing reproduction of deep low-end content for genres like electronic or orchestral music. This adds weight and realism to recordings.
  • Frequency Response Above 20 kHz: Both reach beyond the upper range of human hearing, capturing high-frequency overtones that add air and detail to music. Extended treble response contributes to a more open sound.
  • Replaceable Ear Pads: Both models feature user-replaceable ear cushions, which helps maintain hygiene and comfort over years of use. Swapping pads can also refresh the sound and fit.
  • Adjustable Headband: Each has a sliding, padded headband for a custom fit. This ensures comfort for different head sizes and reduces pressure during long listening sessions.
  • Lightweight Build (< 300 g): At roughly a quarter of a kilogram, both are light enough for prolonged wear without causing neck strain. Low weight enhances comfort during multi-hour listening.
  • Gold-Plated Connectors: Both use gold-plated plugs to minimize signal loss and resist corrosion, ensuring long-term reliability and consistent audio quality.
  • Left-Side Cable Entry: Each routes the cable into the left ear cup, keeping the cord positioned consistently for studio or home use. This helps avoid tangling and allows for easy orientation when wearing.
  • Suitable for Studio/Hi-Fi Listening: Both are designed for accurate, high-fidelity playback, making them appropriate for home hi-fi setups and studio monitoring. They deliver detailed audio that satisfies critical listeners.

Common Features

FeatureSennheiser 599Audio Technica M50x
Dynamic Driver TypeYesYes
Over-Ear Circumaural FitYesYes
Wired ConnectionYesYes
Detachable CableYesYes
3.5 mm Plug with 6.3 mm AdapterYesYes
Stereo OutputYesYes
Passive Noise Isolation (basic)YesYes
Impedance Range for Portable Devices (30–60 Ω)50 Ω38 Ω
Sensitivity Near 100 dB SPL106 dB99 dB
Frequency Response Below 20 HzYesYes
Frequency Response Above 20 kHzYesYes
Replaceable Ear PadsYesYes
Adjustable HeadbandYesYes
Lightweight Build (< 300 g)250 g285 g
Gold-Plated ConnectorsYesYes
Left-Side Cable EntryYesYes
Suitable for Studio/Hi-Fi ListeningYesYes
Price Check Sennheiser 599 Price Check Audio Technica M50x Price

FAQ

Are the Sennheiser HD 599 and Audio-Technica ATH-M50x suitable for studio monitoring?
Yes, both headphones are often used for studio tasks such as mixing or tracking. The M50x offers stronger isolation for recording environments, while the HD 599 provides a more open, natural soundstage useful for critical mixing in quiet spaces.

Do these headphones need a separate headphone amplifier?
No, both have moderate impedance and high sensitivity, so they can be driven directly by laptops, phones, or audio interfaces without requiring a dedicated amp.

Which one provides better noise isolation?
The Audio-Technica ATH-M50x provides better passive isolation due to its closed-back design, whereas the Sennheiser HD 599 is open-back and allows external sounds to enter and internal sound to leak out.

Can the ear pads be replaced on both models?
Yes, both headphones feature replaceable ear pads, making it easy to swap worn pads or use third-party options for comfort or sound adjustments.

Which model is more comfortable for long listening sessions?
The Sennheiser HD 599 is generally more comfortable for extended wear due to its velour pads, lighter clamping force, and breathable open-back design.

Are the cables detachable on both headphones?
Yes, both come with detachable cables, allowing for easy replacement or switching between different cable lengths for various uses.

Do they support balanced connections?
Neither model comes with a balanced cable in the box, but both can be used with aftermarket balanced cables if the user wants to pair them with balanced-output amplifiers.

How do their sound signatures differ?
The HD 599 offers a more neutral and airy sound with natural mids, while the M50x emphasizes bass and treble for a more energetic, V-shaped profile.

Which headphone is more durable for travel?
The Audio-Technica ATH-M50x is more rugged and portable, featuring a foldable design and tougher construction, making it better suited for travel or on-the-go use.

Do both headphones include a 6.3 mm adapter?
Yes, both are packaged with a 6.3 mm (¼-inch) adapter, making them compatible with professional audio gear such as mixing consoles and headphone amplifiers.

Are these headphones good for gaming?
Yes, both can be used for gaming. The HD 599 provides a wider soundstage for immersive experiences, while the M50x gives strong bass and isolation that can help in noisy environments.

Can these headphones be used for phone calls or video conferencing?
They can be used for listening during calls if connected to a device with a microphone, but neither model includes an integrated mic or in-line controls for speaking.

What is the weight difference between the two?
The Sennheiser HD 599 weighs around 250 grams, while the Audio-Technica ATH-M50x weighs approximately 285 grams, making the Sennheiser slightly lighter.

Do they come with multiple cable options?
The HD 599 typically includes two cables of different lengths, while the M50x provides three cables: a coiled cable and two straight cables of different lengths.

Which one is better for outdoor use?
The Audio-Technica ATH-M50x is better suited for outdoor or commuting use because its closed-back design minimizes sound leakage and provides better isolation from external noise.