The HD 650 from Sennheiser are reference-class stereo headphones designed to deliver a true audiophile experience with an open, natural sound. Specially developed acoustic silk was used to provide uniform attenuation over the entire area of each ear-cup. The lightweight aluminum voice coils ensure a remarkable transient response, while the full-range drivers offer a frequency response of 10 Hz to 39.5 kHz. Great care was taken to ensure the headphones are comfortable with their elliptical design, which naturally adapts to the shape of the ear.

The HD 650 utilizes a 9.8' detachable cable made from a highly conductive OFC copper with low handling noise and low structure-borne sound sensitivity. The headphones can be used with high-output mobile devices and excel with high-quality stationary hi-fi components such as SACD, DVD-A, and CD players. The HD 650 ships with the detachable cable and a 1/4" to 3.5mm adapter.

Open, Dynamic, Circumaural Design    Audiophile Sound Reproduction    Frequency Response: 10 Hz to 39.5 kHz    Acoustic Silk Attenuation    Lightweight Aluminum Voice Coils    Grace Headphone Amp, DAC, Preamp    Digital Inputs: USB, S/PDIF, TOSLINK    Supports up to 192 kHz (TOSLINK: 96 kHz)    Two Zero-Ohm Headphone Outputs    DAC Filter Settings for Custom Playback

• Top-of-the-range open, dynamic hi-fi stereo headphones
• Systems with narrow tolerances (±1 dB), hand-picked in pairs
• High-quality titanium / silver finish
• Specially developed acoustic silk for precise, uniform attenuation over the entire area
• Specially modulated connecting cable (detachable) made from highly conductive OFC copper, with very-low handling noise
• Extremely lightweight aluminum voice coils ensure excellent transient response
• Comfortable to wear due to elliptical design adapted to the shape of the ears
• Can be directly connected to stationary hi-fi components of the highest quality, in particular SACD, DVD-A, and CD players

Related Questions and Answers

Q: 1. Is this HD650 comes with black or silver drivers? There is a sound quality improvements with the silver ones. Thank you very much!

A: All the critical parts I can see on either side are silver/metallic. There is plenty of black plastic in there, too, but it all looks like structural support for the silvery parts. I took off the earcup padding and thin foam cover, but that's as much disassembly as I feel safe doing.

Q: 2. What is the difference between akg k 701 and akg k 702 they weigh the same and specs seem the same?

A: There is no difference in the headphones according to AKG aside from color and the detachable cable on the K 702.

Q: 3. Is this the older model that comes in a silver box or the newer one that comes in a black box?

A: it came with a black box

Q: 4. does it came with xlr cable ?

A: No, the Sennheiser HD 800 S Dynamic Open-Back Stereo Headphones BH #SEHD800SBLK does not come with an XLR cable. In the Box Sennheiser HD 800 S Dynamic Open-Back Stereo Headphones Cable with 1/4" / 6.3mm Connector Cable with Balanced 4.4mm Connector Microfiber Cleaning Cloth USB Flash Drive Limited 2-Year Warranty

Q: 5. Are the cables removable/replaceable?

A: Yes."Specially modulated connecting cable (detachable) made from highly conductive OFC copper, with very-low handling noise"

Q: 6. Made in China or Germany?

A: The Sennheiser HD 650 was manufactured in Romania.

Q: 7. Are these $100 better than the HD600s?

A: I will address some of these questions I see here. Some posters would have you waiting forever for a price drop. I haven't listened to the HD600s. I find the HD650S well worth the money. I find them comfortable to wear and I have a big head.The sound is superior to the HD598s which I do own. The one drawback to the 650's is that the cord is long and bulky. You will also need an adapter to use them on a phone or tablet. This would also apply to the HD600s as well. To me either these headphones are in your price range or they are not. If not look elsewhere for cheaper.

Q: 8. Does the HD650 come with a set of replacement earcups?

A: No they do not,

Q: 9. Can I connect this to the headphones out of my Allen & Heath ZED-10FX mixer?

A: Absolutely, using this amplifier with a Zedi-10 mixer now.

Q: 10. What exactly does Output Impedance Minimum 10 ?, per channel mean? I'm trying to find out the actual impendance output of this amp and I don't know what they mean by minimum ? Can anyone clear this up for me? Thanks.

A: Don't buy this unit it's a piece of junk it doesn't work.