Sennheiser, a name synonymous with high-quality audio, has two of its most popular headphones in the HD 650 and HD 660s. As a tech-savvy kid, I’m excited to dive into the differences between these two audio giants and help you decide which one is the perfect fit for your listening needs.
Design and Build Quality
Both the HD 650 and HD 660s feature an open-back design, which means they allow for a natural and immersive soundstage. However, they differ in their appearance:
- HD 650: This model has a classic silver-mesh finish, giving it an elegant and timeless look. Its build quality is top-notch, with durable materials that ensure longevity1.
- HD 660s: The HD 660s sports a modern black-matte finish, giving it a sleek and refined appearance. It also boasts improved ear pads for enhanced comfort during long listening sessions1.
Sound Quality
When it comes to sound quality, these two models cater to different preferences and listening environments:
- HD 650: Known for its warm and smooth sound signature, the HD 650 delivers a well-balanced audio experience. It has a deep and controlled bass response, a rich and detailed midrange, and slightly rolled-off treble to prevent listener fatigue. This model is perfect for those who enjoy an immersive and laid-back sound1.
- HD 660s: The HD 660s takes a more neutral and accurate approach to sound. It offers a tighter bass response and more extended treble, resulting in greater detail and clarity. The midrange remains prominent and engaging, making the HD 660s suitable for analytical listening and professional use. If you prefer a precise and revealing audio experience, the HD 660s might be the better choice1.
Technical Specifications
Understanding the technical specifications can help you determine which model suits your needs better:
- Impedance: The HD 650 has an impedance of 300 ohms, while the HD 660s has a lower impedance of 150 ohms. The lower impedance of the HD 660s makes it easier to drive with a wider range of devices, including portable players and smartphones, without needing a dedicated amplifier1.
- Frequency Response: Both models offer an extensive frequency range, but the HD 660s has a slightly wider range of 10Hz – 41kHz compared to the HD 650’s 10Hz – 39.5kHz1.
- THD (Total Harmonic Distortion): Both models boast impressively low THD, with the HD 660s having a slightly lower distortion of <0.04% compared to the HD 650’s <0.05%1.
Comfort and Fit
Comfort is crucial for any headphone, and both models excel in this aspect:
- HD 650: The HD 650 features plush velour ear pads and a headband that evenly distributes weight across your head. The clamping force is firm yet comfortable, providing a secure fit without causing discomfort1.
- HD 660s: The HD 660s enhances comfort with slightly improved ear pads and a lighter clamping force. The overall fit feels a bit more relaxed while maintaining a secure seal for optimal audio performance1.
Accessories and Cables
Sennheiser includes high-quality accessories with both models:
- HD 650: This model comes with a detachable 3-meter cable terminated with a 6.3mm (1/4 inch) stereo plug. The cable is durable and provides excellent signal transmission1.
- HD 660s: The HD 660s includes two cables – a 3-meter cable with a 6.3mm plug and a 1.2-meter cable with a 3.5mm plug, offering more versatility for different audio sources. Additionally, it comes with a 6.3mm to 3.5mm adapter for further convenience1.
Price and Value
While both models are premium headphones, there is a difference in cost:
- HD 650: Generally, the HD 650 is more affordable, making it an excellent value for audiophiles seeking high-quality sound without breaking the bank1.
- HD 660s: The HD 660s comes at a higher price point, justified by its improved sound accuracy, lower impedance, and additional accessories1.
In conclusion, the choice between the Sennheiser HD 650 vs HD 660s depends on your personal audio preferences and requirements. If you favor a warm, balanced sound and classic design, the HD 650 is the way to go. If you need a more neutral, detailed sound and plan to use it with a variety of devices, the HD 660s might be the better option. Both models promise exceptional audio experiences, living up to Sennheiser’s renowned reputation in the world of high-fidelity audio. For more detailed reviews and the latest tech updates, visit Waveoftechnology.
