Sennheiser HD 800 Audiophile Reference Headphones with Upgraded 20-foot Cardas Cable

Sennheiser HD800 Audiophile Reference Open-back Dynamic Headphones with Upgraded Cable
Excellent condition with upgraded 20-foot Cardas Cross headphone cable ($435 new, can be wired for balanced operation)    
 * The open back design contributes to exceptional clarity, detail and dynamics.    
  * Angling the transducers forward of the listener ears helps deliver a wide and open spatial presentation unlike any other headphone.     
* Listening to the HD 800 is like being in the studio with the performers!     
* See the reviews below    

There's has always been a debate between electronic reproduction and natural sound. The Sennheiser HD-800 is the headphone that has been specifically engineered in replicating the basic acoustic conditions of natural hearing. This level of performance has yet to be matched by any competitor.     

The HD-800 is the ultimate headphone to deliver nature. More than 60 years of ingenious headphone engineering has been applied into the new HD 800. Incorporating Sennheiser's most advanced driver technology, these open, circumaural dynamic stereo headphones redefine what reference-level audio is all about. You will form an altogether new height of sonic perspective as you experience a high-fidelity natural hearing experience.     

Premium parts have gone into their production - the transducer is encased by a precision material made of stainless steel; ear pads are made of special high-quality Japanese Alcantara; while the headband and headphone mounting utilizes the most advanced development from the aerospace industry. In terms of connectivity, these headphones utilize specially designed, four-wire, high-performance connections with Teflon insulation.     

These headphones have been developed to provide the closest match to "being there" than any other available headphone. The Sennheiser HD-800 is for the discriminating audiophile seeking the best and most natural sound available. From rich bass lows to definitive highs, the Sennheiser HD-800 headphones deliver the exclusive sound that nature had intended.    

Sennheiser 800 Series headphones were created with a singular goal: The pursuit of perfect sound. The HD 800 redefines the audiophile listening experience. It’s capable of breaking down the barrier between audio recording and playback equipment connecting the listener directly to an artist’s original performance. In doing this, the power of emotion is delivered through music.    

The patented Ring Radiator transducer is central to the HD 800’s exceptional performance. This innovative 56 millimeter diameter driver is one of the largest used in dynamic headphones. The 40 millimeter aluminum voice coil is driven by a 42 millimeter magnet structure. The transducers diaphragm has two contact points (instead of one used in traditional drivers), at the inside and outside of the ring. Greater surface area coupled with enhanced control of two contact points deliver truly exceptional performance.    

Features    
Ergonomic Ear Cups - Innovative, ergonomically designed ear cup frame is crafted of Leona, an ultra-lightweight, non-resonant material with titanium like strength. Stainless steel mesh protects the transducers. Both contribute to wearing comfort and acoustic performance.

Damped Headband - The metal headband is 'sandwiched' between several layers of resonance dampening polymers to eliminate unwanted vibrations from being transmitted to the headphone mountings and ear cups.

Luxurious Ear Cushions - High quality, easy to maintain and durable microfiber ear pads provide extreme comfort ensuring hours of listening pleasure.

Ring Radiator Transducer - The patented 56 millimeter ring radiator transducers are the largest dynamic driver used in a headphone. It delivers rich, full sound and reduced distortion by effectively controlling the oscillating surface.

Insulated Cables - Impedance matched, low capacitance feature insulated twin-core connections on each ear cup are shielded against frequency disturbance caused by ambient noise.
Made in Germany - Manufactured in Germany using handcrafted, artisan assembly complimented by state of the art electronic production and testing equipment.    

Stats    
Frequency Response: 14 – 41,000 Hz (-3 dB)    
Impedance: 300 Ohm    
Total Harmonic Distortion (THD): <0.02% (1 kHz, 100 dB)    
Sound Pressure Level (SPL): 102 db (1 kHz, 1 Vrm)    
Contact Pressure: ~ 3.4 N (± 0.3 N)    
Ear Coupling: Circumaural Transducer    
Principle: Dynamic Open    
Audio-XLR Connector: 6.3mm    
Cable Length: 3m    
Weight w/o Cable: 11.6 oz. (330 g)    

See the various reviews on YouTube or at:  
 
Product pages   
https://www.amazon.com/dp/B002NV1J2C   
https://www.headphone.com/products/sennheiser-hd-800 Reviews   
https://www.cnet.com/reviews/sennheiser-hd800-review   
https://www.stereophile.com/headphones/sennheiser_hd800_headphones/index.html 
 
Cardas Cross Headphone Cable    
http://www.cardas.com/headphone_cable.php   
https://www.moon-audio.com/cardas-headphone-cable.html https://www.head-fi.org/threads/454965    

List price: $2035 (with Cardas cable, see, e.g., https://www.amazon.com/dp/B002NV1J2C)   


Street price: $1100 (without Cardas cable)    

Excellent condition (very clean head-band and ear-pads) with extra 20-foot Cardas cable (a $435 value); see the photos   


Includes original padded box, manual, 2 cables and 1/8-inch adaptor plug   


I dearly love these headphones, but my working environment just got noisier so I need to switch to closed-back cans.
Please feel free to check out my feedback...