Condition: Open box item in great working and cosmetic condition. Includes the original box and cables and has been fully tested. If you know audio gear, you know the Sennheiser HD 650. The company’s flagship from 2003 to 2009, this open-back headphone has shown serious staying power. Praised for its richly detailed, effortlessly enjoyable sound, it remains one of the most talked-about products on Head-Fi today—and is still widely considered among the best headphones under $1,000. So when we teamed up with Sennheiser on its first-ever community-driven design partnership, the HD 650 was a natural place to start. A new revision of the popular all-rounder, the Massdrop x Sennheiser HD 6XX has that same great sound plus a few updates, and a price that makes it even easier to love. Crafted with the modern audiophile in mind, the HD 6XX replaces the HD 650’s gray colorway with something darker and more dramatic: a deep midnight blue. The silver nameplates have been swapped for black plates with contrasting silver text—and the Massdrop logo is silk-screened on the inside of the headband, just above the right cup, with the serial number located just above the left cup. Based on feedback from the community, this iteration has also been updated with a detachable 6-foot cable (compared to the original’s 10-foot cable) and a ?-inch plug, which is more versatile for everyday laptop, phone, and DAP use than the standard ¼-inch plug. Of course, the HD 6XX comes with a ¼-inch adapter for those who want it. Good news for fans of the HD 650: In this revision, the driver structure and sound signature haven’t changed a bit. You’ll get the same smooth, laid-back presentation, with a balanced midrange and natural-sounding bass. The HD 650 is considered more refined and better damped than its predecessor, the HD 600, with less energy in the upper midrange (which some listeners may find less fatiguing) and an overall balance that’s a bit warmer and bassier. Its neutral response provides a pleasant listening experience with any musical genre from a range of sources. Plus, it responds well to improved sources and amplification, and headphone amplifiers of any output impedance could potentially make a good match. Because the HD 6XX’s open-back design won’t isolate you from outside noise or prevent sound from being heard by those nearby, it may be best-suited for quieter home and office environments. Like all headphones in Sennheiser’s HD 600 line, this new model can be disassembled by hand to its component parts, all of which can be easily replaced. Many of its parts are interchangeable with others in the series, and owners of the HD 6XX can benefit from the rich aftermarket and brain trust of modifications and gear matching—along with excellent long-term support from Sennheiser itself. SPECS Massdrop x Sennheiser HD 6XX HeadphonesMassdrop x SennheiserColor: Midnight blueTransducer principle: Open, dynamicFrequency response: 10 Hz – 41 kHzTHD: < 0.05%Nominal impedance: 300 ohmCable length: 6 ft (1.8 m)Connector: ? in (3.5 mm)Weight without cable: 9.2 oz (260 g)Made in Romania Created with Eselt - Mobile Optimized Listing Designs for eBay Sellers Payment Payment is handled securely through eBay. All major credit cards as well as PayPal are accepted and is handled with the security and guarantee of eBay managed payments. Shipping Free, same day priority shipping on most items! We want to make sure you get your items as soon as possible and make sure items go out same day in order to do so. Expedited shipping is always available as well. Returns Free no hassle 30 day returns for any reason! We want to make sure you’re happy with your product and are willing to stand by it. Buy with confidence! Created with Eselt - Mobile Optimized Listing Designs for eBay Sellers Links Our Store Seller Profile Feedback About us Contact More items Are you looking for something similar? See our other items! Show more items Contact Send us a message

Massdrop x Sennheiser HD 6XX Open-Back Headphones Description: Condition: New Opened Box Features: Massdrop x Sennheiser HD 6XX Headphones Massdrop x SennheiserColor: Midnight blueTransducer principle: Open, dynamicFrequency response: 10 Hz – 41 kHzTHD: < 0.05%Nominal impedance: 300 ohmCable length: 6 ft (1.8 m)Connector: ? in (3.5 mm)Weight without cable: 9.2 oz (260 g)Made in Romania Included ?–¼ in (3.5–6.35 mm) adapter Massdrop x Sennheiser HD 6XX Headphones Shipping: We Accept PayPal, Visa, Master Card,Free shipping for all orders.Orders will be ship and handle within 1 business day.Estimate delivery: Order usually take 3-5 business days for delivery.Alaska/Hawaii/Puerto Rico Please Contact us first before buy. Because shipping to these states are very expensive. We may not able to offer free shipping. Massdrop x Sennheiser HD 6XX Open-Back Headphones

MASSDROP + SENNHEISER HD 6XX HEADPHONES OB Free Shipping. Come in box with aux cable missing 1/4 adapter. Box was opened just to check the contents and make sure headphones are fully functional. Outer box may not be in perfect condition. Sold AS IS No Returns. Any questions just ask and Thanks for looking. Specs Below SPECS Massdrop x Sennheiser HD 6XX Headphones Massdrop x Sennheiser Color:Midnight blue Transducer principle: Open, dynamic Frequency response: 10 Hz 41 kHz THD: < 0.05% Nominal impedance: 300 ohm Cable length: 6 ft (1.8 m) Connector: in (3.5 mm) Weight without cable: 9.2 oz (260 g) Made in Rom

New. Box shows imperfections.

The HD 6XX is an audiophile-grade open dynamic hi-fi/professional stereo headphone. The advanced diaphragm design eliminates standing waves resulting in a clean sound free of artifacts and acoustical disturbances. The HD 6XX is a fantastic addition to a hi-fi stack or dedicated listening room, and is a favorite among mastering engineers worldwide.Make a reasonable offer

MASSDROP X SENNHEISER HD 6XX HEADPHONES w/ Fenestrated Sheepskin Included. Shipped with UPS Ground.

Up for sale is a pair of Sennheiser HD 6XX headphones used in fair grade C+ condition. Ear cushions are worn and headphones show moderate use. Headphones Only. Tested Working, Sold AS IS No Returns. Any questions just ask and Thanks for Looking. Specs Below SPECS Massdrop x Sennheiser HD 6XX Headphones Massdrop x Sennheiser Color:Midnight blue Transducer principle: Open, dynamic Frequency response: 10 Hz 41 kHz THD: < 0.05% Nominal impedance: 300 ohm Cable length: 6 ft (1.8 m) Connector: in (3.5 mm) Weight without cable: 9.2 oz (260 g) Made in Ireland

sennheiser hd 6xx headphones and amp/Dac combo. Barely been broken in, bought this and just sat around never really using it to it’s full potential. Comes with the legendary O2+SDAC and has been re-cabled with OCC Pure copper cable ($150 value). This is on par with Sennheiser’s HD 650 a $350 headphone, except this has a little more bass. Perfect for an audiophile!!

Up for sale is a pair of Sennheiser HD 6XX headphones used in Good Grade B condition. Ear cushions are worn and headphones show normal wear. Headphones Only. Tested Working, Sold AS IS No Returns. Any questions just ask and Thanks for Looking. Specs Below SPECS Massdrop x Sennheiser HD 6XX Headphones Massdrop x Sennheiser Color:Midnight blue Transducer principle: Open, dynamic Frequency response: 10 Hz 41 kHz THD: < 0.05% Nominal impedance: 300 ohm Cable length: 6 ft (1.8 m) Connector: in (3.5 mm) Weight without cable: 9.2 oz (260 g) Made in Ireland

Der Sennheiser HD 6XX wird aus den USA von Mass Drop vertrieben und ist im Prinzip ein HD 650 in schwarz. Massdrop x Sennheiser HD 6XX Headphones Color: Black Transducer principle: Open, dynamic Frequency response: 10 Hz – 41 kHz THD: < 0.05% Nominal impedance: 300 ohm Cable length: 6 ft (1.8 m) Connector: ? in (3.5 mm) + ?–¼ in (3.5–6.35 mm) adapter Weight without cable: 9.2 oz (260 g) Made in Ireland Dazu gibt es noch ein Original Sennheiser 3 m Kabel mit 6,3 mm Klinke. Der Kopfhörer ist sehr wenig gebraucht worden und in einem exzellentem Zustand. Keine Rückgabe und keine Garantie, da Privatverkauf.

Massdrop x Sennheiser HD 6XX Open-Back Headphones ONLY Description: Condition: Used Tested Working - Headphones ONLY. No Cable. Contents:Massdrop x Sennheiser HD 6XX Open-Back Headphones ONLY Massdrop x SennheiserColor: Midnight blueTransducer principle: Open, dynamicFrequency response: 10 Hz – 41 kHzTHD: < 0.05%Nominal impedance: 300 ohmCable length: 6 ft (1.8 m)Connector: ? in (3.5 mm)Weight without cable: 9.2 oz (260 g)Made in Romania Shipping: We Accept PayPal, Visa, Master Card, Free shipping for all orders. Orders will be ship and handle within 1 business day. Estimate delivery: Order usually take 3-5 business days for delivery. Alaska/Hawaii/Puerto Rico Please Contact us first before buy. Because shipping to these states are very expensive. We may not able to offer free shipping. ----

Up for Sale is a used Authentic Massdrop x Sennheiser HD 6XX Open-Back Headphones - Black Great Condition in original box. The other cover is not available. Comes with ? in (3.5 mm) gold-plated stereo jack plug ONLY, ¼ inch Jack Plug NOT included! Guarantee to be as described or your money back! Enhance your audio experience with these premium quality Massdrop x Sennheiser HD 6XX headphones. Designed with ear-cup (over the ear) type, they offer superior sound quality and are perfect for music lovers. These headphones come in the classic black color and have a 3.5mm jack connectivity option, making them compatible with a wide range of devices.The brand is renowned for producing world-class audio equipment, and this model is no exception. With its sleek design and dynamic sound quality, youll have a truly immersive listening experience. Get your hands on these Massdrop x Sennheiser HD 6XX headphones today and take your audio game to the next level!Based on Sennheiser’s flagship headset from 2003 to 2009, the HD 650, our open-back Sennheiser HD 6XX headphones let you hear more detail than ever before.Modern Midnight Blue Designed for the modern listener, the HD 6XX swaps the HD 650’s gray colorway with a darker, more dramatic, deep midnight blue.6-Foot Cable Based on feedback from the audiophile community, we updated the HD 6XX with a detachable 6-foot cable (compared to the original’s cumbersome 10-foot cable).Standard 3.5mm plug Our community asked for better compatibility with laptops, phones, DAPs, and more—so we opted for an ?-inch plug instead of the standard ¼-inch plug. Shipping is instantly. Buyer can make other faster shipping arrangements if necessary. Please forward any questions to us for instant response.RETURN: No returns accepted. Defective items, malfunctions or items not matching descriptions are exempted. Please give us a chance to work things out as we strive for our customers utmost satisfaction. If we resolve your problem, we kindly ask you to still leave us positive feedback. Your kindness will be extremely appreciated!

Unit is in very good condition overall. Includes stock cable and adapter plug.

Massdrop x Sennheiser HD 6XX Headphones - Black (Open-Box) Opened and tested for functionality only. Headset and aux cable only. Both are in excellent condition. Hardcase and foam inserts only. The hardcase may show signs of wear (scratches, dents, worn corners, etc). No box or instructions! The Item in the photos is what you will be buying, so please look closely at them. If you have any questions or require more photos please feel free to contact me. Thank you for taking the time to look at my listing! Massdrop x Sennheiser HD 6XX Headphone Spechs:Massdrop x SennheiserColor: BlackTransducer principle: Open, dynamicFrequency response: 10 Hz – 41 kHzTHD: < 0.05%Nominal impedance: 300 ohmCable length: 6 ft (1.8 m)Connector: ? in (3.5 mm)Weight without cable: 9.2 oz (260 g)

Experience true sound nirvana with these Sennheiser HD 6XX headphones. With their comfortable headband and over-ear cups, youll be able to immerse yourself in your music or audio work for hours without discomfort. These headphones come in blue or black and feature Bluetooth and RF wireless technology, making them perfect for on-the-go use. They are suitable for studio monitoring, DJing, and live monitoring, and come with a detachable cable for added convenience.

Massdrop x Sennheiser HD 6XX Headphones Studio Headphones UPC 615104293526 The HD 58X Jubilee uses Sennheiser’s new 150-ohm drivers, which require less amplification than previous driver platforms while retaining the same magnet strength and driver size. This makes the new headphone easier to drive from sources like your mobile phone or digital audio player. The sound is clear, fast, dynamic, and lively: reminiscent in some ways of the HD 600 and in others of the HD 650. It places an emphasis on clean, extended bass, with a solid transient response and a smooth but clear upper midrange. Plus, with Sennheisers ongoing testing of all units in the series, you can be assured that the drivers hit the target frequency response and match in both left and right channels. SPECSMassdrop x SennheiserGlossy black headband, gray metal grillesEar coupling: Over-ear (circumaural)Transducer principle: Open, dynamicImpedance: 150 ohmsFrequency response: 12–38,500 Hz (-10 dB)THD + N: < 0.1% at 1 kHz, 100 dBSound pressure level: 104 dB at 1V, 1 kHzConnector: ? in (3.5 mm) gold-plated stereo jack plugCable: 6 ft (1.8 m) OFC, detachableWeight without cable: Approx. 9.2 oz (260 g)Individually serialized Thanks for Looking!

sennheiser hd 6xx headphones and amp/Dac combo. Barely been broken in, bought this and just sat around never really using it to it’s full potential. Comes with the legendary O2+SDAC and has been re-cabled with OCC Pure copper cable ($150 value). This is on par with Sennheiser’s HD 650 a $350 headphone, except this has a little more bass. Perfect for an audiophile!!

In great condition and perfect working order. Tab on outer box is torn in case that is important to you (see photos). Any questions, let me know. Thanks!

Massdrop x Sennheiser HD6XX. Used great condition with original box!

Open box unused headphones with original packaging. Item looks and functions like new! Item has been tested, so buy with confidence! The HD 6XX is a high impedance headphone, a dedicated amp is necessary to drive these headphones at a reasonable volume. Immerse yourself in pure sound with the MASSDROP X SENNHEISER HD 6XX REFERENCE CLASS HEADPHONES. Designed for audiophiles, these ear-cup (over the ear) headphones deliver exceptional clarity and detail. The black color and 6ft cable length add to the sleek design of these headphones. Enjoy your favorite instrumentals with the MASSDROP X SENNHEISER HD 6XX REFERENCE CLASS HEADPHONES. The 3.5mm Jack connectivity ensures compatibility with a wide range of devices. Upgrade your listening experience with these headphones that are the perfect combination of style and functionality.

MASSDROP X SENNHEISER HD 6XX HEADPHONES w/ Fenestrated Sheepskin Included. Shipped with UPS Ground.

Experience high-quality sound with the Massdrop x Sennheiser HD 6XX Headphones. These headphones have a driver size of 40mm and a frequency range of 10Hz to 41,000Hz, providing studio-level sound for your music needs. The headphones come in a sleek black color with an adjustable headband for a comfortable fit. These headphones have a cable length of 6ft and are suitable for studio monitoring, DJing, and live monitoring. They have an open-back design and a 300 ohm impedance, perfect for those who want to immerse themselves in their music. The headphones come with a 6.35mm (1/4 in) and 3.5mm jack connectivity and are wireless technology RF enabled. Order now and take your music experience to the next level! Excellent working condition, includes original case and box

MASSDROP X SENNHEISER HD 6XX & 58X JUBILEE HEADPHONES. These are brand new the HD 58X I only opened to replace the stock cable and then packaged back as I prefer IEMs but the 6XX still sealed and this will also come supplied with a new replacement cable and everything included will come with the proof of purchase as well. Ive decided to stick to IEMs so these must go. Any questions Please ask. Next Day Delivery Insured. Please note serial numbers will be recorded as well as a video handover of the items to the courier to prevent against Fraud.

sennheiser hd 6xx headphones and amp/Dac combo. Barely been broken in, bought this and just sat around never really using it to it’s full potential. Comes with the legendary O2+SDAC and has been re-cabled with OCC Pure copper cable ($150 value). This is on par with Sennheiser’s HD 650 a $350 headphone, except this has a little more bass. Perfect for an audiophile!!