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{"id":9610950797,"title":"Neumann KMR 81 i","handle":"neumann-kmr-81-i","description":"\u003cp\u003e\u003cstrong\u003eKMR 81 i\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eShort version of the classic shotgun mic, with switchable filter and pre-attenuation functions. Excellent off-axis (lateral and rear) attenuation. Free of coloration.\u003c\/p\u003e\n\u003cdiv class=\"textBlock\"\u003eThe KMR 81 is a shotgun microphone with a high directivity that remains within the acceptance angle independent of the frequency. \u003cbr\u003e\u003cbr\u003eThe advantage is that a sound source, for example an actor on stage, will not change its apparent tonal balance when moving within this area.\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\n\u003cdiv class=\"headline\"\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/div\u003e\nShotgun microphones are particularly useful in recording situations where a microphone cannot be positioned within the desired distance of the sound source to produce a sufficiently loud signal level. \u003cbr\u003e\u003cbr\u003eTypical applications are film and video recordings, where the microphone should not appear in the picture. \u003cbr\u003e\u003cbr\u003eThe KMR 81 has been specifically designed for electronic news gathering.\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\n\u003cdiv class=\"headline\"\u003e\u003cstrong\u003eAcoustic features\u003c\/strong\u003e\u003c\/div\u003e\nIn principle, Neumann shotgun microphones use a combination of a pressure gradient transducer and an interference tube. If the wavelength of the frequency is longer than the tube length, the microphones work as pressure gradient transducers. At higher frequencies they operate as interference transducers for lateral sound. Off-axis sound sources are picked up with reduced level, but without coloration. \u003cbr\u003e\u003cbr\u003eTherefore, the microphones are well suited to record individual instruments of an orchestra. The pickup areas of several shotgun microphones may even overlap as, for example, during recordings on a large stage, without causing any problem. \u003cbr\u003e\u003cbr\u003eThe KMR 81 is less sensitive to wind and pop noise when compared to the KM 150 miniature microphone with a similar high directivity. The shotgun microphone features extremely low self noise, good impulse response, and high output level.\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\n\u003cdiv class=\"textBlock\"\u003e\n\u003cdiv class=\"headline\"\u003e\u003cstrong\u003ePolar patterns\u003c\/strong\u003e\u003c\/div\u003e\nThe KMR 81 is a shotgun microphones with a very directional characteristic. \u003cbr\u003e\u003cbr\u003eThe microphone capsule is positioned inside a housing tube that is acoustically open but has a high flow resistance. The directional pattern of the microphone is lobe shaped. The attenuation of lateral sound is practically independent of the frequency. The KMR 81 has a frequency independent directivity within a pickup angle of 90° for audio signals that determine the tonal balance of the program material.\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\n\u003cdiv class=\"headline\"\u003e\u003cstrong\u003eFilter and attenuation\u003c\/strong\u003e\u003c\/div\u003e\nThe microphone has a 10 dB attenuation switch to prevent the input of the following unit from overloading. \u003cbr\u003e\u003cbr\u003eA second switch activates a 200 Hz high-pass filter. Toward the lower frequencies the sensitivity of the microphone is attenuated by approximately 15 dB at 50 Hz. The frequency range above 200 Hz is unaffected.\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\n\u003cdiv class=\"headline\"\u003e\u003cstrong\u003eUse on location\u003c\/strong\u003e\u003c\/div\u003e\nThe shotgun microphone features very high output capability and a remarkably low self-noise level. \u003cbr\u003e\u003cbr\u003eIts low power consumption, light weight, and low sensitivity to wind and handling noise, makes it an ideal tools for news gathering on location. \u003cbr\u003e\u003cbr\u003eSmall dimensions, together with a balanced center of gravity, make handling easy without any whiplash effect. \u003cbr\u003e\u003cbr\u003eHowever, when on location and during strong wind conditions, we recommend using an additional wind screen (included as standard accessory). The wind screen is made of polyurethane foam. \u003cbr\u003e\u003cbr\u003eFor mobile use a handle and an elastic suspension are available.\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\n\u003cdiv class=\"headline\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"headline\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"headline\"\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eInterference tube microphone with shotgun directional characteristic\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eInterference\/pressure-gradient transducer\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eHigh lateral and back attenuation\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e90°-recording angle\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eSwitchable filter or preattenuation features\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eExtensive accessories for outdoor use\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eLight weight: 145 g\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Data\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eAcoustical operating principle\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eInterference transducer\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eDirectional pattern\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eSupercardioid\/lobe\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eFrequency range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e20 Hz ... 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eSensitivity at 1 kHz into 1 kohm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e18 mV\/Pa\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eRated impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e150 ohms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eRated load impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e1 kohms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eEquivalent noise level, CCIR\u003csup\u003e1)\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e23 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eEquivalent noise level, A-weighted\u003csup\u003e1)\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e12 dB-A\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eSignal-to-noise ratio, CCIR\u003csup\u003e1)\u003c\/sup\u003e (rel. 94 dB SPL)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e71 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eSignal-to-noise ratio, A-weighted\u003csup\u003e1)\u003c\/sup\u003e (rel. 94 dB SPL)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e82 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMaximum SPL for THD 0.5%\u003csup\u003e2)\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e128 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMaximum SPL for THD 0.5% with preattenuation\u003csup\u003e2)\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e138 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMaximum output voltage\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e1.3 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eSupply voltage (P48, IEC 61938)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e48 V ± 4 V\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eCurrent consumption (P48, IEC 61938)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e0.8 mA\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMatching connector\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eXLR3F\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eWeight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e145 g\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eDiameter\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e21 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eLength\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e213 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"373\"\u003e\n\u003cp\u003e______________________________________________\u003cbr\u003e \u003csup\u003e1)\u003c\/sup\u003e according to IEC 60268-1; CCIR-weighting acccording to CCIR 468-3, quasi peak; A-weighting according to IEC 61672-1, RMS\u003cbr\u003e \u003csup\u003e2)\u003c\/sup\u003e measured as equivalent el. input signal\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"555\"\u003e\u003c\/td\u003e\n\u003ctd width=\"115\"\u003e\u003c\/td\u003e\n\u003ctd width=\"78\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAccessories\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAdapter Cable AC 22\u003cbr\u003eAdapter Cable AC 25\u003cbr\u003eAdapter Cable AC 27\u003cbr\u003eAuditorium Hanger MNV 21 mt\u003cbr\u003eAuditorium Hanger MNV 87 (mt)\u003cbr\u003eBattery Supply BS 48 i\u003cbr\u003eBattery Supply BS 48 i-2\u003cbr\u003eBoom Attachment M 212 c\u003cbr\u003eElastic Suspension EA 2124 A mt\u003cbr\u003eFloor Stand MF 5\u003cbr\u003eMicrophone Cable IC 3 mt\u003cbr\u003ePower Supply N 248\u003cbr\u003eStand M 210\/1\u003cbr\u003eStand M 214\/1\u003cbr\u003eStand M 252\u003cbr\u003eStand Extension STV 4\/20\/40\/60\u003cbr\u003eStand Mount SG 21 bk\u003cbr\u003eTable Stand MF 2\u003cbr\u003eTable Stand MF 3\u003cbr\u003eTable Stand MF 4\u003cbr\u003eVertical Bar MZEF 8060\/8120\u003cbr\u003eWindscreen WKE 81 Set\u003cbr\u003eWindscreen WS 81\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","published_at":"2017-04-10T18:34:00+02:00","created_at":"2017-04-10T18:35:07+02:00","vendor":"Neumann","type":"Microphones","tags":["Location Sound","Neumann","Neumann KMR 81 i","Polar Pattern_Supercardioid","Price Range_$1000 to $1500","Pro Audio","Shop by brand_Neumann","Shop by category_Shotgun Microphones","Shotgun Microphones","Wired Microphones"],"price":126900,"price_min":126900,"price_max":126900,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":35775071821,"title":"Nickel","option1":"Nickel","option2":null,"option3":null,"sku":"KMR 81 i-1","requires_shipping":true,"taxable":true,"featured_image":{"id":23364840269,"product_id":9610950797,"position":2,"created_at":"2017-04-10T18:35:56+02:00","updated_at":"2019-12-10T01:07:43+02:00","alt":null,"width":600,"height":600,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81_01_05_P.jpg?v=1575932863","variant_ids":[35775071821]},"available":true,"name":"Neumann KMR 81 i - Nickel","public_title":"Nickel","options":["Nickel"],"price":126900,"weight":0,"compare_at_price":null,"inventory_quantity":1,"inventory_management":null,"inventory_policy":"deny","barcode":"006961","featured_media":{"alt":null,"id":609251590190,"position":2,"preview_image":{"aspect_ratio":1.0,"height":600,"width":600,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81_01_05_P.jpg?v=1569035859"}}},{"id":1958796689434,"title":"Black","option1":"Black","option2":null,"option3":null,"sku":"KMR 81 i mt","requires_shipping":true,"taxable":true,"featured_image":{"id":23364833805,"product_id":9610950797,"position":1,"created_at":"2017-04-10T18:35:44+02:00","updated_at":"2019-12-10T01:07:43+02:00","alt":null,"width":545,"height":600,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81i_Z.jpg?v=1575932863","variant_ids":[1958796689434]},"available":true,"name":"Neumann KMR 81 i - Black","public_title":"Black","options":["Black"],"price":126900,"weight":0,"compare_at_price":null,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","barcode":"006962","featured_media":{"alt":null,"id":609251098670,"position":1,"preview_image":{"aspect_ratio":0.908,"height":600,"width":545,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81i_Z.jpg?v=1569035859"}}}],"images":["\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81i_Z.jpg?v=1575932863","\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81_01_05_P.jpg?v=1575932863","\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81_02_02_P.jpg?v=1575932863","\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81_03_04_P.jpg?v=1575932863"],"featured_image":"\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81i_Z.jpg?v=1575932863","options":["Color"],"media":[{"alt":null,"id":609251098670,"position":1,"preview_image":{"aspect_ratio":0.908,"height":600,"width":545,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81i_Z.jpg?v=1569035859"},"aspect_ratio":0.908,"height":600,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81i_Z.jpg?v=1569035859","width":545},{"alt":null,"id":609251590190,"position":2,"preview_image":{"aspect_ratio":1.0,"height":600,"width":600,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81_01_05_P.jpg?v=1569035859"},"aspect_ratio":1.0,"height":600,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81_01_05_P.jpg?v=1569035859","width":600},{"alt":null,"id":609252114478,"position":3,"preview_image":{"aspect_ratio":1.0,"height":600,"width":600,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81_02_02_P.jpg?v=1569035860"},"aspect_ratio":1.0,"height":600,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81_02_02_P.jpg?v=1569035860","width":600},{"alt":null,"id":609252737070,"position":4,"preview_image":{"aspect_ratio":1.0,"height":600,"width":600,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81_03_04_P.jpg?v=1569035860"},"aspect_ratio":1.0,"height":600,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0292\/6125\/products\/KMR81_03_04_P.jpg?v=1569035860","width":600}],"content":"\u003cp\u003e\u003cstrong\u003eKMR 81 i\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eShort version of the classic shotgun mic, with switchable filter and pre-attenuation functions. Excellent off-axis (lateral and rear) attenuation. Free of coloration.\u003c\/p\u003e\n\u003cdiv class=\"textBlock\"\u003eThe KMR 81 is a shotgun microphone with a high directivity that remains within the acceptance angle independent of the frequency. \u003cbr\u003e\u003cbr\u003eThe advantage is that a sound source, for example an actor on stage, will not change its apparent tonal balance when moving within this area.\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\n\u003cdiv class=\"headline\"\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/div\u003e\nShotgun microphones are particularly useful in recording situations where a microphone cannot be positioned within the desired distance of the sound source to produce a sufficiently loud signal level. \u003cbr\u003e\u003cbr\u003eTypical applications are film and video recordings, where the microphone should not appear in the picture. \u003cbr\u003e\u003cbr\u003eThe KMR 81 has been specifically designed for electronic news gathering.\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\n\u003cdiv class=\"headline\"\u003e\u003cstrong\u003eAcoustic features\u003c\/strong\u003e\u003c\/div\u003e\nIn principle, Neumann shotgun microphones use a combination of a pressure gradient transducer and an interference tube. If the wavelength of the frequency is longer than the tube length, the microphones work as pressure gradient transducers. At higher frequencies they operate as interference transducers for lateral sound. Off-axis sound sources are picked up with reduced level, but without coloration. \u003cbr\u003e\u003cbr\u003eTherefore, the microphones are well suited to record individual instruments of an orchestra. The pickup areas of several shotgun microphones may even overlap as, for example, during recordings on a large stage, without causing any problem. \u003cbr\u003e\u003cbr\u003eThe KMR 81 is less sensitive to wind and pop noise when compared to the KM 150 miniature microphone with a similar high directivity. The shotgun microphone features extremely low self noise, good impulse response, and high output level.\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\n\u003cdiv class=\"textBlock\"\u003e\n\u003cdiv class=\"headline\"\u003e\u003cstrong\u003ePolar patterns\u003c\/strong\u003e\u003c\/div\u003e\nThe KMR 81 is a shotgun microphones with a very directional characteristic. \u003cbr\u003e\u003cbr\u003eThe microphone capsule is positioned inside a housing tube that is acoustically open but has a high flow resistance. The directional pattern of the microphone is lobe shaped. The attenuation of lateral sound is practically independent of the frequency. The KMR 81 has a frequency independent directivity within a pickup angle of 90° for audio signals that determine the tonal balance of the program material.\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\n\u003cdiv class=\"headline\"\u003e\u003cstrong\u003eFilter and attenuation\u003c\/strong\u003e\u003c\/div\u003e\nThe microphone has a 10 dB attenuation switch to prevent the input of the following unit from overloading. \u003cbr\u003e\u003cbr\u003eA second switch activates a 200 Hz high-pass filter. Toward the lower frequencies the sensitivity of the microphone is attenuated by approximately 15 dB at 50 Hz. The frequency range above 200 Hz is unaffected.\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\n\u003cdiv class=\"headline\"\u003e\u003cstrong\u003eUse on location\u003c\/strong\u003e\u003c\/div\u003e\nThe shotgun microphone features very high output capability and a remarkably low self-noise level. \u003cbr\u003e\u003cbr\u003eIts low power consumption, light weight, and low sensitivity to wind and handling noise, makes it an ideal tools for news gathering on location. \u003cbr\u003e\u003cbr\u003eSmall dimensions, together with a balanced center of gravity, make handling easy without any whiplash effect. \u003cbr\u003e\u003cbr\u003eHowever, when on location and during strong wind conditions, we recommend using an additional wind screen (included as standard accessory). The wind screen is made of polyurethane foam. \u003cbr\u003e\u003cbr\u003eFor mobile use a handle and an elastic suspension are available.\u003c\/div\u003e\n\u003cdiv class=\"textBlock\"\u003e\n\u003cdiv class=\"headline\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"headline\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"headline\"\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eInterference tube microphone with shotgun directional characteristic\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eInterference\/pressure-gradient transducer\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eHigh lateral and back attenuation\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e90°-recording angle\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eSwitchable filter or preattenuation features\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eExtensive accessories for outdoor use\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eLight weight: 145 g\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Data\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eAcoustical operating principle\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eInterference transducer\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eDirectional pattern\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eSupercardioid\/lobe\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eFrequency range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e20 Hz ... 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eSensitivity at 1 kHz into 1 kohm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e18 mV\/Pa\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eRated impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e150 ohms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eRated load impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e1 kohms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eEquivalent noise level, CCIR\u003csup\u003e1)\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e23 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eEquivalent noise level, A-weighted\u003csup\u003e1)\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e12 dB-A\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eSignal-to-noise ratio, CCIR\u003csup\u003e1)\u003c\/sup\u003e (rel. 94 dB SPL)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e71 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eSignal-to-noise ratio, A-weighted\u003csup\u003e1)\u003c\/sup\u003e (rel. 94 dB SPL)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e82 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMaximum SPL for THD 0.5%\u003csup\u003e2)\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e128 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMaximum SPL for THD 0.5% with preattenuation\u003csup\u003e2)\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e138 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMaximum output voltage\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e1.3 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eSupply voltage (P48, IEC 61938)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e48 V ± 4 V\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eCurrent consumption (P48, IEC 61938)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e0.8 mA\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMatching connector\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eXLR3F\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eWeight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e145 g\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eDiameter\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e21 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eLength\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e213 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"373\"\u003e\n\u003cp\u003e______________________________________________\u003cbr\u003e \u003csup\u003e1)\u003c\/sup\u003e according to IEC 60268-1; CCIR-weighting acccording to CCIR 468-3, quasi peak; A-weighting according to IEC 61672-1, RMS\u003cbr\u003e \u003csup\u003e2)\u003c\/sup\u003e measured as equivalent el. input signal\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"555\"\u003e\u003c\/td\u003e\n\u003ctd width=\"115\"\u003e\u003c\/td\u003e\n\u003ctd width=\"78\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAccessories\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAdapter Cable AC 22\u003cbr\u003eAdapter Cable AC 25\u003cbr\u003eAdapter Cable AC 27\u003cbr\u003eAuditorium Hanger MNV 21 mt\u003cbr\u003eAuditorium Hanger MNV 87 (mt)\u003cbr\u003eBattery Supply BS 48 i\u003cbr\u003eBattery Supply BS 48 i-2\u003cbr\u003eBoom Attachment M 212 c\u003cbr\u003eElastic Suspension EA 2124 A mt\u003cbr\u003eFloor Stand MF 5\u003cbr\u003eMicrophone Cable IC 3 mt\u003cbr\u003ePower Supply N 248\u003cbr\u003eStand M 210\/1\u003cbr\u003eStand M 214\/1\u003cbr\u003eStand M 252\u003cbr\u003eStand Extension STV 4\/20\/40\/60\u003cbr\u003eStand Mount SG 21 bk\u003cbr\u003eTable Stand MF 2\u003cbr\u003eTable Stand MF 3\u003cbr\u003eTable Stand MF 4\u003cbr\u003eVertical Bar MZEF 8060\/8120\u003cbr\u003eWindscreen WKE 81 Set\u003cbr\u003eWindscreen WS 81\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e"}

Neumann KMR 81 i

Product Description
$1,269.00
Maximum quantity available reached.

KMR 81 i

Short version of the classic shotgun mic, with switchable filter and pre-attenuation functions. Excellent off-axis (lateral and rear) attenuation. Free of coloration.

The KMR 81 is a shotgun microphone with a high directivity that remains within the acceptance angle independent of the frequency.

The advantage is that a sound source, for example an actor on stage, will not change its apparent tonal balance when moving within this area.
Applications
Shotgun microphones are particularly useful in recording situations where a microphone cannot be positioned within the desired distance of the sound source to produce a sufficiently loud signal level.

Typical applications are film and video recordings, where the microphone should not appear in the picture.

The KMR 81 has been specifically designed for electronic news gathering.
Acoustic features
In principle, Neumann shotgun microphones use a combination of a pressure gradient transducer and an interference tube. If the wavelength of the frequency is longer than the tube length, the microphones work as pressure gradient transducers. At higher frequencies they operate as interference transducers for lateral sound. Off-axis sound sources are picked up with reduced level, but without coloration.

Therefore, the microphones are well suited to record individual instruments of an orchestra. The pickup areas of several shotgun microphones may even overlap as, for example, during recordings on a large stage, without causing any problem.

The KMR 81 is less sensitive to wind and pop noise when compared to the KM 150 miniature microphone with a similar high directivity. The shotgun microphone features extremely low self noise, good impulse response, and high output level.
Polar patterns
The KMR 81 is a shotgun microphones with a very directional characteristic.

The microphone capsule is positioned inside a housing tube that is acoustically open but has a high flow resistance. The directional pattern of the microphone is lobe shaped. The attenuation of lateral sound is practically independent of the frequency. The KMR 81 has a frequency independent directivity within a pickup angle of 90° for audio signals that determine the tonal balance of the program material.
Filter and attenuation
The microphone has a 10 dB attenuation switch to prevent the input of the following unit from overloading.

A second switch activates a 200 Hz high-pass filter. Toward the lower frequencies the sensitivity of the microphone is attenuated by approximately 15 dB at 50 Hz. The frequency range above 200 Hz is unaffected.
Use on location
The shotgun microphone features very high output capability and a remarkably low self-noise level.

Its low power consumption, light weight, and low sensitivity to wind and handling noise, makes it an ideal tools for news gathering on location.

Small dimensions, together with a balanced center of gravity, make handling easy without any whiplash effect.

However, when on location and during strong wind conditions, we recommend using an additional wind screen (included as standard accessory). The wind screen is made of polyurethane foam.

For mobile use a handle and an elastic suspension are available.
Features

Interference tube microphone with shotgun directional characteristic

Interference/pressure-gradient transducer

High lateral and back attenuation

90°-recording angle

Switchable filter or preattenuation features

Extensive accessories for outdoor use

Light weight: 145 g

 

Technical Data

Acoustical operating principle

Interference transducer

Directional pattern

Supercardioid/lobe

Frequency range

20 Hz ... 20 kHz

Sensitivity at 1 kHz into 1 kohm

18 mV/Pa

Rated impedance

150 ohms

Rated load impedance

1 kohms

Equivalent noise level, CCIR1)

23 dB

Equivalent noise level, A-weighted1)

12 dB-A

Signal-to-noise ratio, CCIR1) (rel. 94 dB SPL)

71 dB

Signal-to-noise ratio, A-weighted1) (rel. 94 dB SPL)

82 dB

Maximum SPL for THD 0.5%2)

128 dB

Maximum SPL for THD 0.5% with preattenuation2)

138 dB

Maximum output voltage

1.3 dBu

Supply voltage (P48, IEC 61938)

48 V ± 4 V

Current consumption (P48, IEC 61938)

0.8 mA

Matching connector

XLR3F

Weight

145 g

Diameter

21 mm

Length

213 mm

______________________________________________
1) according to IEC 60268-1; CCIR-weighting acccording to CCIR 468-3, quasi peak; A-weighting according to IEC 61672-1, RMS
2) measured as equivalent el. input signal

 

Accessories

Adapter Cable AC 22
Adapter Cable AC 25
Adapter Cable AC 27
Auditorium Hanger MNV 21 mt
Auditorium Hanger MNV 87 (mt)
Battery Supply BS 48 i
Battery Supply BS 48 i-2
Boom Attachment M 212 c
Elastic Suspension EA 2124 A mt
Floor Stand MF 5
Microphone Cable IC 3 mt
Power Supply N 248
Stand M 210/1
Stand M 214/1
Stand M 252
Stand Extension STV 4/20/40/60
Stand Mount SG 21 bk
Table Stand MF 2
Table Stand MF 3
Table Stand MF 4
Vertical Bar MZEF 8060/8120
Windscreen WKE 81 Set
Windscreen WS 81

Sku: KMR 81 i-1
Vendor: Neumann

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