Sennheiser HD 650 Open-Air Pro Headphones

Description: The audiophile Sennheiser HD 650 is the ultimate in open, dynamic headphone design. Developed from the award-winning HD 600, HD 650 headphones feature improved materials for even better sound reproduction. These headphones will captivate you with their expressiveness and emotion while maintaining absolute precision and lifelike reproduction. Home Guitars Percussion Accessories Sennheiser HD 650 Open-Air Pro Headphones item# 1274034493179 New The audiophile Sennheiser HD 650 is the ultimate in open, dynamic headphone design. Developed from the award-winning HD 600, HD 650 headphones feature improved materials for even better sound reproduction. These headphones will captivate you with their expressiveness and emotion while maintaining absolute precision and lifelike reproduction. Features: Selected, matched headphone systems with very tight tolerances (+/- 1dB)Optimized magnet systems for minimizing harmonic and intermodulation distortionTitanium finishQuality metal mesh covers for superb open and transparent soundReinforced, insensitive to handling noisePlated 1/4" jack plug with adapter lead to 3.5 mm jack plug1-year warranty Specifications: Nominal impedance 300 OhmContact pressure ca. 2,5 NWeight w/o cable ca. 260gJack plug 6,3/3,5 mm stereoTransducer principle (Headphones) open, dynamicEar coupling circumauralCable length 3 mFrequency response (headphones) 10.....39500 HzSound pressure level (SPL) 103 dB (1 Vrms)THD, total harmonic distortion 0,05 %GlossaryNominal impedanceSee impedance.Contact pressureThe wearing comfort of a set of headphones is determined not only by its weight but also by the force with which the earpieces are pressed onto the ears. This force is given in newtons (N), whereby 1 N corresponds to the compressive force which a mass of about 100 g exerts on a solid surface. The DIN Standard 45500 Part 10 limits the maximum permissible contact force to 5 N. Values of between 1.3 and 4 N are common, although lower values apply for open headphones. Higher values can be found in the case of closed headphones. Here, a higher contact pressure is required in order to achieve sufficient sealing, which is important for the reproduction of low frequencies.Weight w/o cableJack plugA common audio connector in consumer electronics and music industry. Available in various diameters; in the hi-fi segment, 1/8" and 1/4" are widely used. Poles range from one to four. (Examples: headphone jack or jack of an electric guitar).Transducer principle (Headphones)Ear couplingA distinction is made between headphones which are worn on the external ear (supra-aural) and those which surround the ear (circumaural). Open headphones have foam ear pads that rest on the ears or ring pads that surround the ears. Closed headphones, on the other hand, nearly always have circumaural ear pads.Cable lengthThe cable length is usually measured between the anti-kink sleeves of the cable (cable length without connectors).Frequency response (headphones)The frequency response of a pair of headphones is given within limits defined by the manufacturer.Sound pressure level (SPL)Due to the impractical numerical values, the sound pressure is usually given as the logarithmic value of the sound pressure level according to the equation: dB SPL = 20 x log (po / 0.00002 Pa). The abbreviation SPL (sound pressure level) is added in order to make a clear distinction from other uses of dB. The reference sound pressure, which is at the same time the threshold of hearing, is then 0 dB SPL. The threshold of pain is 140 dB SPL. A difference in the sound pressure level of 1 dB is just about perceptible, while a doubling of the sound pressure corresponds to 6 dB and a doubling of the volume corresponds to a rise of 10 dB.THD, total harmonic distortionTotal harmonic distortion is a measure of non-linear harmonic distortion and is given in %. Non-linear harmonic distortions are signals which were not present in the original before the signal was converted by the headphones. These unwanted signals are caused by the diaphragm, whose movements do not precisely move in time with the electric signals that cause it to move. Unfortunately, this is a feature of all electroacoustic transducers. Although it cannot be completely eliminated, suitable steps can be taken to minimise it. However, the user is not interested in why this distortion takes place but in how great the level of distortion must be for it to become perceptible. According to the findings of several research projects, a total harmonic distortion of 1% in the frequency range of 100 to 2000 Hz is imperceptible. Below 100 Hz, the perceptibility threshold lies at 10% Shipping Orders are generally shipped the following business day after payment is received. For example, if your order is placed AND paid for at 1 p.m. Eastern Time on Friday, Musicians Friend will ship it on Monday. We are only shipping eBay orders via standard ground shipping at this time (3-7 business days for delivery once the item leaves our warehouse) Payment We use eBay Managed Payments and accept the following forms of payment credit, debit, and gift cards, Apple Pay, Google Pay, PayPal, and PayPal Credit. Sales Tax We are required to collect sales tax on all orders, except those shipped to the following states: Alaska, Delaware, Montana, New Hampshire and Oregon. Store Policies If you’re not satisfied, neither are we. If for any reason you’re not completely satisfied with your purchase of a new item, simply return it in its original condition within 45 days of purchase (see exceptions below) and we’ll give you a full refund. It’s that simple. Returned items must be in original, brand-new condition, showing no signs of wear or use such as belt-buckle or pick scratches, scuffs, dings or scrapes on the instrument or collateral materials. Items must also include all original packaging, manuals, warrantees and accessories or your return may be subject to a return handling charge. Your refund will be promptly processed upon successful evaluation of your returned item from our trained category professionals in 2-3 business days. Refunds are made for product value only, excluding shipping and handling charges. If you received Free Shipping on your order, the value of the uncharged shipping cost will be deducted from your refund. Limitations and Exceptions Returns of the following products must be made within 10 days of shipment - Stringed instruments priced at $1999.00 or more. The following products cannot be returned – Clearance items, Apple products, items identified as non-returnable, discontinued items, electronic software downloads, demo gear, vintage instruments, strings, reeds, computers, tubes, earbuds, earplugs, recorders, tin whistles, flutophones, "world" wind instruments, harmonicas, raw-frame speakers, drumheads, drumsticks, turntable cartridges, fog fluid, clothing/footwear, body jewelry, sheet music, cleaners, polishes and polishing cloths, software/soundware, books, CDs, DVD's, vinyl records, and videos.The following fees apply to Band & Orchestra returns - All returned woodwind and brass instruments incur a $10.00 sanitization fee. Returned bows are assessed a $4.00 restocking fee. Returned mouthpieces over $300 incur an $8.00 sanitization fee; the fee for mouthpieces under $300 is $4.00. Should you decide to return your shipment, please follow the return steps printed on the back of your invoice and pack your return carefully to prevent damage in shipment. All returns must: 1. Include a Return Authorization Number; (Please contact us via eBay messages for an RA number) 2. Be in the original packaging complete with all collateral materials such as cases, straps, cables, care kits, certificates of authenticity, warranty cards, manuals, and any other materials that originally shipped with the instrument; 3. Be in brand-new condition, showing no signs of wear or use such as belt-buckle or pick scratches, scuffs, dings, or scrapes on the instrument or collateral materials.

Price: 499.95 USD

Location: Kansas City, Missouri

End Time: 2024-11-04T23:49:42.000Z

Shipping Cost: 0 USD