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Sennheiser HD 650 Headphones - OPEN BOX

OPEN BOX: Like New - Full Manufacturer's Warranty

HeadRoom OPEN BOX products have been inspected, cleaned and tested by our staff.

Once considered (at least by us!) one of 'The World's Best', the Sennheiser HD650 remains among our absolute favorite 'entry-level audiophile' headphones. This full size open-back model delivers a silky smooth, accurate sound with a laid-back, mellow presentation. The HD650 is a gorgeous can for acoustic music of all kinds and for listeners seeking warm, richly rendered detail without brightness or sharp glare. The user-detachable headphone cord allows easy upgrades to upscale aftermarket cables.

Sorry, this model can only ship to USA addresses due to manufacturer restrictions on our sales territories.

  • Product Features:

    • Best-in-class acoustic performance from these beloved cans. A true classic!
    • Detachable connectors on each earpiece allow easy cable upgrades
    • Very comfortable fit with replaceable velour ear pads
    • Lightweight aluminum voice coils ensure excellent transient response.
    • 2-year Sennheiser manufacturer's warranty
  • Specifications:

    • Driver Type: Dynamic
    • Impedance @ 1kHz: 300 ohms
    • Sensitivity: 102 dB SPL/V
    • THD+N:
    • Isolation:
    • Connector Type: 1/4" w/ 1/8" adapter
    • Cable Length: 10 ft. (3m)
    • Cable Style: Straight Y (detachable)
    • Weight: 9.2 oz.
    • Manufacturer Warranty: 2 year

    What's In The Box:

    • 1/4" to 1/8" adapter cable
    • Storage Box
  • Sennheiser Electronics in Germany has always taken its time developing its audiophile reference headphone line. In fact, they're well-known for blissfully ignoring the apparent audio industry demand to come out with 'brand-new' products every single season. We think their patience and persistence researching and developing high-end headphones has paid off handsomely over the years. With the critically lauded HD650, the music is beautifully smooth and relaxed when it's supposed to be, and liquid-quick and punchy on demand -- and so effortless that you just fall worry-free into its lovely sonic embrace. It's a top-flight audio experience hearing the Sennheiser HD650 properly Amplified, its warm yet refined and seamless sound coupled with good wearing comfort has kept this model in the top echelon for years as one of the best headphones on the audiophile market.

    Liveried in a slick deep grey and gloss black look, these cans are largely the same headphones as the HD600 model but with a few quite noteworthy improvements. First and foremost, Sennheiser audio engineers improved the baffling damper for tighter acoustic control, and boy did that work! The lab measurements of these headphones are phenomenally even and jagged-free, and the tonality is probably as close to 'down-the-middle smooth' as is available at this price. The renowned classic Sennheiser sonic warmth has been coupled to a clarity of acoustic detail in the HD650 that is hard to beat by most other audiophile master-level headphones. Design-wise, the earcup grilles on the outside of the earpieces have been made sturdier; those who suffered a dented housing on their old HD600's will likely be appreciative. A new velour headband pad design improves on the already good comfort of the HD600 headphones, and a slightly tighter tension on the earcup adjusters makes for a more secure fit. The HD650 cord has also been much-improved with a better OFC cable design terminated to a full-sized 1/4" stereo plug. A short cable-style adapter to a 1/8" (3.5mm) mini-plug jack is handily included in the HD650 package. Although it's a decent mini-adapter, we still highly recommend getting the superb Cardas Audio 1/4" to 1/8" adapter if plugging the HD650 into a source with small sensitive 3.5mm (1/8") outputs.

    NOTE: Though the Sennheiser HD650 improved cord is certainly better than the original HD600 stock cable, we continue to suggest the Cardas Audio Upgrade Cables for ultimate detail resolution, musical texture, instrumental separation and soundstage depth. The significant audio benefits of the Cardas Audio upgrades will be especially evident with reference high-end audio sources.

  • Sennheiser HD 650 Frequency Response

    View our full featured 'Build a Graph Tool' for headphone comparisons and in-depth measurements.

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