Sennheiser HD 650 Instruction Manual

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Sennheiser HD 650 Specification

The Sennheiser HD 650 is a pair of high-fidelity open-back headphones designed for audiophiles seeking exceptional sound quality and comfort. Engineered with precision, the HD 650 offers a frequency response range of 10 Hz to 39,500 Hz, ensuring crisp and clear audio reproduction across the spectrum. The headphone impedance of 300 ohms makes it suitable for use with high-quality headphone amplifiers, allowing for optimal performance.

The HD 650 features specially designed acoustic silk to reduce total harmonic distortion to a mere 0.05%, providing a balanced and natural sound signature. Its lightweight aluminum voice coils contribute to superior transient response, enhancing the dynamic range and detail of the audio. The headphones are equipped with neodymium ferrous magnet systems that ensure high efficiency and excellent dynamics.

Comfort is prioritized with the HD 650's elliptical ear cups, which are crafted to fit the natural shape of the ear. The ear pads are made from a high-quality velour material, offering extended comfort during long listening sessions. A robust and detachable OFC copper cable with low handling noise and low structure-borne sound sensitivity ensures durability and reliability.

The HD 650's open-back design allows for a more natural and spatial sound experience, making it ideal for critical listening and studio applications. With a weight of approximately 260 grams without the cable, these headphones strike a balance between sturdiness and comfort. The Sennheiser HD 650 remains a top choice for those who appreciate high-resolution audio and ergonomic design in a premium headphone package.

Sennheiser HD 650 F.A.Q.

How can I properly burn-in my Sennheiser HD 650 headphones?

To burn-in your HD 650, play a variety of music at a moderate volume for about 50-100 hours. This helps in loosening the diaphragm and can improve sound quality.

What is the optimal way to store my Sennheiser HD 650 when not in use?

Store your HD 650 in a cool, dry place away from direct sunlight. Use the provided case or a headphone stand to avoid bending the headband.

How do I replace the ear pads on my Sennheiser HD 650?

Gently pull the old ear pads away from the ear cups. Align the new pads with the mounting rings and press them into place until they click securely.

What should I do if my Sennheiser HD 650 has a loose connection?

Check the cable connections at both the headphone and source ends. Ensure the connectors are clean and securely attached. If the issue persists, consider replacing the cable.

How can I clean my Sennheiser HD 650 headphones?

Use a soft, dry cloth to wipe the headband and ear cups. For deeper cleaning, remove the ear pads and gently wash them with mild soap and water, then air dry completely before reattaching.

What is the best way to equalize the Sennheiser HD 650 for optimal sound?

Use an equalizer to slightly boost the lower frequencies (bass) and the higher frequencies (treble) to enhance clarity and depth, while keeping the midrange relatively flat.

Is an amplifier necessary for the Sennheiser HD 650?

While the HD 650 can be used without an amplifier, using one can significantly improve sound quality, particularly in dynamics and detail.

How do I troubleshoot sound imbalance in my Sennheiser HD 650 headphones?

First, check the cable connections and try a different audio source. If imbalance persists, consider swapping the ear pads or testing with a different cable.

Can I use the Sennheiser HD 650 outdoors?

While possible, the HD 650 is designed for indoor use. They are open-back headphones, which means external noise can affect the listening experience.

How can I prolong the lifespan of my Sennheiser HD 650 headphones?

Regularly clean the headphones, store them properly, avoid extreme temperatures, and handle the cable and connectors with care to ensure longevity.