Sennheiser HD600 vs HD650: Key Aspects
Naila Syifa
Updated November 2024
The Sennheiser HD 600 and HD 650 are two iconic models in the world of audiophile headphones, known for their natural, neutral sound profiles. While both are excellent for critical listening, they have subtle differences that cater to varying tastes. Which one should you pick?
Key Takeaways
The HD 600 offers a more neutral, precise sound with flatter bass and brighter treble, while the HD 650 provides a warmer, fuller sound with more bass presence and smoother highs. The HD 650 is also slightly louder, with a higher sound pressure level, and comes with a more robust cable for professional use.
Sennheiser HD 600
Neutral & Precise Audio
✓ Open-Back Earcup
✓ 300 ohms Impedance
✓ 97 dB/V SPL
✓ 3.5mm Stereo Jack Plug
Sennheiser HD 650
Rich & Warm Audio
✓ Open-Back Earcup
✓ 300 ohms Impedance
✓ 103 dB/V SPL
✓ 1.4” Stereo Jack Plug
Design
Sennheiser HD 650
Both headphones feature an open-back design, which enhances sound quality by allowing air to move freely through the ear cups, creating a more natural, open soundstage.
They also share a similar overall aesthetic with a classic, minimalist look, and a robust yet comfortable construction.
Sennheiser mentions that the HD 650 has a titanium silver finish, but don't mistake it for a more premium material—both the HD 600 and HD 650 are made primarily from durable plastic, making them equally lightweight at around 260 grams.
Sound Performance
Sennheiser HD 600
Both the HD 600 and HD 650 are designed to deliver natural, neutral sound profiles ideal for critical listening. While they share many similarities, they have distinct differences in how they handle bass, mids, and highs, which might influence your preference depending on your listening style.
The HD 600 offers a more neutral sound with flatter bass and brighter treble, making it feel airy and precise, though its mids can sometimes come across as shouty.
In contrast, the HD 650 provides a warmer, richer sound with more bass presence and smoother treble, delivering a fuller, more laid-back listening experience.
In terms of frequency response, the HD 600 covers a range of 12 Hz to 40,500 Hz, while the HD 650 extends slightly further, from 10 Hz to 41,000 Hz. Although both ranges exceed the limits of human hearing (20 Hz - 20,000 Hz), the extra depth at the lower and higher ends of the spectrum in the HD 650 may contribute to a slightly warmer and more spacious sound.
Another difference to highlight between the two headphones is the sound pressure level (SPL), which measures how loud the headphones can get when given a certain amount of power. The HD 650 has it higher at 103 dB/V as compared to the HD 600 at 97 dB/V, making the HD 650 slightly louder at the same input level.
However, both headphones still require a good amplifier to perform their best. As high-impedance headphones with 300 ohms, they demand sufficient power to fully unlock their potential and avoid sounding weak or dull.
Cable & Connectivity
Sennheiser HD 600
Both headphones come with a 3-meter-long cable, but they differ in their terminations and intended use.
The HD 600 cable ends in a 3.5mm plug (standard headphone size, ideal for phones or laptops) and includes a thread-on adapter that lets you convert it to a larger 1/4” plug, commonly used with professional audio equipment.
In contrast, the HD 650 cable ends in a 1/4” plug (suited for professional setups) and comes with an adapter cable to convert it to a smaller 3.5mm plug.
This means the HD 600 is better suited for devices with smaller headphone jacks right out of the box, while the HD 650 is designed for professional equipment but remains versatile thanks to its included adapter.
Additionally, the HD 650’s cable feels more robust and durable compared to the HD 600’s, offering enhanced longevity for demanding use cases.
Sennheiser HD600 vs HD650
Final Thoughts
Sennheiser HD 650
Both the HD 600 and HD 650 are exceptional choices for audiophiles, offering high-quality sound and comfortable designs. The HD 600 is perfect for those who prefer a more neutral and analytical sound, while the HD 650 is ideal for those seeking a richer, warmer listening experience. Ultimately, your choice will depend on whether you prioritize precision or a more laid-back tone.
If you like to read more about headphones, check out our other relevant guides here:
Dyson OnTrac vs Sony WH-1000XM5
Dyson OnTrac vs Apple AirPods Max
Beats Solo 4 vs Studio Pro
Sennheiser Momentum 4 vs Sony WH-1000XM5
Author
Naila Syifa
Content Manager at Synced. She crafts insightful content on the latest trends in technology, consumer electronics, and smart home gadgets.
Don't miss out on tech
Subscribe to our newsletter to stay up to date on the latest tech trends and guides on the best gadgets around.
