{"product_id":"shure-beta91a","title":"Shure BETA91A - Bass Drum Microphone - Half-Cardioid Condenser","description":"\u003ch2 data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/uZhAXodtsWg\" height=\"563\" width=\"1000\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv data-mce-fragment=\"1\" class=\"product-details__desc\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Beta 91A features a new and updated microphone capsule. The new capsule will result in a more natural high frequency response than the Beta 91.\u003c\/p\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003eAre there any other Shure Kick Drum microphones? \u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Beta 52A is a super cardioid microphone and is also suited to kick drums. With the Beta 52A you can expect even more low end.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" id=\"product-variant-pricing-details\" class=\"product-variant-pricing\"\u003e\n\u003cdiv data-mce-fragment=\"1\" id=\"product-details__tabbed-section\"\u003e\n\u003cdiv data-mce-fragment=\"1\" data-tab=\"tab_1\" class=\"tabbed-section__item tabbed-section__item--visible\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eUniform half-cardioid polar pattern for maximum gain-before-feedback and rejection of off-axis sound\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePrecision-engineered low-profile design features integrated preamplifier and XLR connector to maximize setup efficiency while minimizing stage clutter\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFrequency response tailored for kick drum\/low frequency applications with a wide dynamic range for use in high SPL environments\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTwo-position contour switch to maximize attack and clarity depending on application – select the flat response setting for natural sound in most applications or the “low-mid scoop” setting for a strong low frequency “punch” with plenty of higher frequency attack\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRequires no external mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"pubs-header\"\u003e\u003cspan class=\"pubs-header-name\"\u003eHalf-Cardioid Condenser Microphone\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"topic_level1 tab-pane active\" id=\"c_6C85F9ED-D1AF-B308-7055-63D39353FE13\" data-rev=\"1.0\"\u003e\n\u003ch1 class=\"H1_heading\"\u003eGeneral Description\u003c\/h1\u003e\n\u003cp class=\"P1\"\u003eThe Shure Beta 91A is designed for use with kick drums, piano and other traditional low frequency applications. Tailored for bass-heavy environments, this microphone features a powerful low frequency response and integrated preamplifier and XLR connection for easy setup and minimal stage clutter. The Beta 91A combines superior attack and punch for studio-quality sound, even at extremely high sound pressure levels (SPLs).\u003c\/p\u003e\n\u003cdiv class=\"topic_level2\" id=\"c_112B2DF3-585E-4538-754B-63D392E46640\" data-rev=\"1.0\"\u003e\n\u003ch2 class=\"H2_heading\"\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli class=\"P1_bullet\"\u003ePremier live performance microphone with Shure quality, ruggedness, and reliability\u003c\/li\u003e\n\u003cli class=\"P1_bullet\"\u003eUniform half-cardioid polar pattern (in the hemisphere above mounting surface) for maximum gain before feedback and rejection of off-axis sound\u003c\/li\u003e\n\u003cli class=\"P1_bullet\"\u003eTailored frequency response for kick drums and bass-heavy instruments\u003c\/li\u003e\n\u003cli class=\"P1_bullet\"\u003eWide dynamic range for use in high SPL environments\u003c\/li\u003e\n\u003cli class=\"P1_bullet\"\u003eTwo-position contour switch enhances attack and clarity\u003c\/li\u003e\n\u003cli class=\"P1_bullet\"\u003eIntegrated preamp and XLR connector reduce stage clutter and provide a quick, secure setup\u003c\/li\u003e\n\u003cli class=\"P1_bullet\"\u003eLow profile design requires no external mounting hardware\u003c\/li\u003e\n\u003cli class=\"P1_bullet\"\u003eSteel grille and die-cast metal construction resist wear and abuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"topic_level1 tab-pane\" id=\"u_5698be34-6b3b-4dd2-8906-d290b070b208\"\u003e\n\u003cdiv class=\"topic_level2\" id=\"c_E3AFD9D3-3618-F12C-F6E0-FDC6151E527D\" data-rev=\"1.0\"\u003e\n\u003ch2 class=\"H2_heading\"\u003eGeneral Rules for Use\u003c\/h2\u003e\n\u003cp class=\"P1\"\u003eThis table lists the most common applications and placement techniques. Keep in mind that microphone technique is largely a matter of personal taste; there is no one \"correct\" microphone position.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"P1_bullet\"\u003eAim the microphone toward the desired sound source; angle unwanted sounds toward its\u003cspan\u003e \u003c\/span\u003e\u003ci\u003enull\u003c\/i\u003e\u003cspan\u003e \u003c\/span\u003epoint.\u003c\/li\u003e\n\u003cli class=\"P1_bullet\"\u003eUse the fewest amount of microphones as practical to increase the\u003cspan\u003e \u003c\/span\u003e\u003ci\u003ePotential Acoustic Gain\u003c\/i\u003e\u003cspan\u003e \u003c\/span\u003eand prevent feedback.\u003c\/li\u003e\n\u003cli class=\"P1_bullet\"\u003eFollow the\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e3 to 1 Rule\u003c\/i\u003e\u003cspan\u003e \u003c\/span\u003eby spacing each microphone by at least three times the distance to its source to reduce\u003cspan\u003e \u003c\/span\u003e\u003ci\u003ePhase Cancellation\u003c\/i\u003e.\u003c\/li\u003e\n\u003cli class=\"P1_bullet\"\u003ePlace microphones as far as possible from reflective surfaces to reduce\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eComb Filtering\u003c\/i\u003e.\u003c\/li\u003e\n\u003cli class=\"P1_bullet\"\u003eWhen using directional microphones, work closely to the microphone for extra bass response to take advantage of\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eProximity Effect\u003c\/i\u003e.\u003c\/li\u003e\n\u003cli class=\"P1_bullet\"\u003eAvoid excessive handling to minimize pickup of mechanical noise and vibration.\u003c\/li\u003e\n\u003cli class=\"P1_bullet\"\u003eDo not cover any part of the microphone grille, as this will adversely affect microphone performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"topic_level2\" id=\"c_7FC2A353-2FF2-AD17-1246-63D392E492EA\" data-rev=\"1.0\"\u003e\n\u003ch2 class=\"H2_heading\"\u003eApplications and Placement\u003c\/h2\u003e\n\u003cp class=\"P1\"\u003eLocation and room acoustics strongly affect the sound quality of microphones. To achieve the best overall sound for a particular application, it may be necessary to experiment with microphone placement and room treatments.\u003c\/p\u003e\n\u003ctable class=\"noframe table\" id=\"table_96de18e8-f81a-4b52-b317-fce83b1cf326\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"23%\"\u003e \u003ccol width=\"45%\"\u003e \u003ccol width=\"30%\"\u003e \u003c\/colgroup\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"T1_heading\"\u003eApplication\u003c\/th\u003e\n\u003cth class=\"T1_heading\"\u003eSuggested Microphone Placement\u003c\/th\u003e\n\u003cth class=\"T1_heading\"\u003eTone Quality\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" class=\"T1\"\u003eKick Drum\u003c\/td\u003e\n\u003ctd class=\"T1\"\u003eInside drum, on a pillow or other cushioning surface, 25 to 152 mm (1 to 6 in.) from beater head.\u003c\/td\u003e\n\u003ctd class=\"T1\"\u003eFull, natural sound.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"T1\"\u003eContour switch activated; 25 to 152 mm (1 to 6 in.) from beater head.\u003c\/td\u003e\n\u003ctd class=\"T1\"\u003eSharp attack; maximum bass “punch.”\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" class=\"T1\"\u003ePiano\u003c\/td\u003e\n\u003ctd class=\"T1\"\u003eMount microphone on underside of lid over lower treble strings. Experiment with lid height and placement to hammers for desired sound.\u003c\/td\u003e\n\u003ctd class=\"T1\"\u003eBright, well-balanced, strong attack; excellent isolation.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"T1\"\u003eMount microphone vertically on the inside of the piano frame, near the apex of the piano’s curved wall.\u003c\/td\u003e\n\u003ctd class=\"T1\"\u003eFull, natural; excellent isolation and minimal hammer and damper noise.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"topic_level1 tab-pane\" id=\"c_0DD6D131-408A-4A6F-3271-FDC560CA5C7E\" data-rev=\"1.0\"\u003e\n\u003ch1 class=\"H1_heading\"\u003eMounting the Microphone\u003c\/h1\u003e\n\u003cp class=\"P1\"\u003eIf desired, attach the microphone to a prepared surface using the mounting holes on the bottom of the microphone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"topic_level1 tab-pane\" id=\"c_43A48ED8-E7FF-CD66-7637-FDC4397F1914\" data-rev=\"1.0\"\u003e\n\u003ch1 class=\"H1_heading\"\u003eHalf-cardioid Polar Pattern\u003c\/h1\u003e\n\u003cp class=\"P1\"\u003eThis boundary microphone has a cardioid polar pattern in the hemisphere above the mounting surface. Keep sound sources within a 60° range above this surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"topic_level1 tab-pane\" id=\"c_4C1C4B6B-6F73-A7B1-ECE7-FDC4B6810CC6\" data-rev=\"1.0\"\u003e\n\u003ch1 class=\"H1_heading\"\u003eContour Switch\u003c\/h1\u003e\n\u003cp class=\"P1\"\u003eA two-position switch on the bottom of the microphone lets you selectively filter the low-mid frequency response without additional tools. Use this filter to enhance the attack and clarity of bass-heavy instruments.\u003c\/p\u003e\n\u003cp class=\"P1\"\u003e\u003cb\u003eFlat response\u003c\/b\u003e: Provides the most natural sound in most applications.\u003c\/p\u003e\n\u003cp class=\"P1\"\u003e\u003cb\u003eLow-Mid Scoop\u003c\/b\u003e: This setting tailors the microphone’s frequency response to provide a strong ‘punch’ in the low frequencies, and plenty of attack in the higher frequencies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"topic_level1 tab-pane\" id=\"c_EC8225F8-A82D-E1F1-6E73-5E98533A10E8\" data-rev=\"1.0\"\u003e\n\u003ch1 class=\"H1_heading\"\u003eLoad Impedance\u003c\/h1\u003e\n\u003cp class=\"P1\"\u003eMaximum SPL capability, output clipping level, and dynamic range vary with the input load impedance of the preamplifier to which you connect the microphone. Shure recommends a minimum input load impedance of 1000 Ω. Most modern microphone preamplifiers meet this requirement. Higher impedance results in better performance for these specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"topic_level1 tab-pane\" id=\"c_6D4DDFF5-FF08-54BA-D86D-5F19E0B8A57D\" data-rev=\"1.0\"\u003e\n\u003ch1 class=\"H1_heading\"\u003ePower Requirements\u003c\/h1\u003e\n\u003cp class=\"P1\"\u003eThis microphone requires phantom power and performs best with a 48 Vdc supply (IEC-61938). However, it will operate with slightly decreased headroom and sensitivity with supplies as low as 11 Vdc.\u003c\/p\u003e\n\u003cp class=\"P1\"\u003eMost modern mixers provide phantom power. You must use a\u003cspan\u003e \u003c\/span\u003e\u003cb\u003ebalanced\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003emicrophone cable: XLR-to-XLR.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"topic_level1 tab-pane\" id=\"u_796B5ABD-83AA-7201-85B7-975CF3A4426C\"\u003e\n\u003ch1 class=\"H1_heading\"\u003eAccessories\u003c\/h1\u003e\n\u003cdiv class=\"topic_level2\" id=\"u_C5C7688A-C1F7-F8DD-84B6-975D582627C3\"\u003e\n\u003ch2 class=\"H2_heading\"\u003eFurnished Accessories\u003c\/h2\u003e\n\u003cdiv id=\"c_baca2823-897d-43e3-8b69-06202eab6f0e\"\u003e\n\u003ctable class=\"parts table\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"72%\"\u003e \u003ccol width=\"27%\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"T1\"\u003eZippered Carrying Bag\u003c\/td\u003e\n\u003ctd class=\"T1\"\u003e95A2314\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"topic_level2\" id=\"u_03817EA6-2F9B-47BC-3A67-6B0E9E125C6D\"\u003e\n\u003ch2 class=\"H2_heading\"\u003eOptional Accessories\u003c\/h2\u003e\n\u003cdiv id=\"c_bbfff80e-cca7-429d-81ae-ab08b02cc422\"\u003e\n\u003ctable class=\"parts table\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"72%\"\u003e \u003ccol width=\"27%\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"T1\"\u003e25 foot (7.5m) Triple-Flex\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eMicrophone XLR Cable with Switchcraft connectors\u003c\/td\u003e\n\u003ctd class=\"T1\"\u003eC25E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"topic_level2\" id=\"u_5D30CD07-C3AF-93D6-E412-975D3BD5A0B8\"\u003e\n\u003ch2 class=\"H2_heading\"\u003eReplacement Parts\u003c\/h2\u003e\n\u003cdiv id=\"c_48a91ff5-a654-43ae-8b2d-2a0ea1312899\"\u003e\n\u003ctable class=\"parts table\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"72%\"\u003e \u003ccol width=\"27%\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"T1\"\u003eCardioid Cartridge\u003c\/td\u003e\n\u003ctd class=\"T1\"\u003eRPM98A\/C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"topic_level1 tab-pane\" id=\"u_B5FCDDDB-A81D-A20C-4285-9763DF4F1252\"\u003e\n\u003ch1 class=\"H1_heading\"\u003eSpecifications\u003ca name=\"spec\"\u003e \u003c\/a\u003e\n\u003c\/h1\u003e\n\u003cdiv id=\"c_4B77CEC3-474D-B321-4211-6518BF45FBD9\"\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003eType\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spec1_value\"\u003e\u003cspan class=\"term\"\u003eElectret Condenser\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003eFrequency Response\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spec1_value\"\u003e20\u003cspan class=\"term\"\u003e\u003cspan\u003e \u003c\/span\u003eto\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e20\u003cspan class=\"term\"\u003e,\u003c\/span\u003e000\u003cspan class=\"term\"\u003e Hz\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003ePolar Pattern\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spec1_value\"\u003e\u003cspan class=\"term\"\u003eHalf-cardioid (cardioid in hemisphere above mounting surface)\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003eOutput Impedance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spec1_value\"\u003e150\u003cspan class=\"term\"\u003e Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003eSensitivity\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spectext_cond\"\u003e\u003cspan class=\"term\"\u003eat 1kHz\u003c\/span\u003e,\u003cspan class=\"term\"\u003eopen circuit voltage\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"spec1_value\"\u003e-48\u003cspan class=\"term\"\u003e.\u003c\/span\u003e5\u003cspan class=\"term\"\u003e dBV\/Pa\u003c\/span\u003e(3\u003cspan class=\"term\"\u003e.\u003c\/span\u003e8\u003cspan class=\"term\"\u003e mV\u003c\/span\u003e)\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[1]\u003c\/sup\u003e\u003c\/p\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003eMaximum SPL\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spectext_cond\"\u003e\u003cspan class=\"term\"\u003e1 kHz at 1% THD\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[2]\u003c\/sup\u003e\u003c\/p\u003e\n\u003ctable class=\"specTable table\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"NaN%\"\u003e \u003ccol width=\"NaN%\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec_tableValueVT\"\u003e\u003cspan class=\"term\"\u003e2500 Ω load\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd class=\"spec_tableValue\"\u003e155\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003e dB\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec_tableValueVT\"\u003e\u003cspan class=\"term\"\u003e1000 Ω load\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd class=\"spec_tableValue\"\u003e151\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003e dB\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"spec1_title\"\u003e\n\u003cspan class=\"term\"\u003eSignal-To-Noise Ratio\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[3]\u003c\/sup\u003e\n\u003c\/h3\u003e\n\u003cp class=\"spec1_value\"\u003e64\u003cspan class=\"term\"\u003e.\u003c\/span\u003e5\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003e dB\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003eDynamic Range\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spectext_cond\"\u003e\u003cspan class=\"term\"\u003eat 1kHz\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable class=\"specTable table\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"NaN%\"\u003e \u003ccol width=\"NaN%\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec_tableValueVT\"\u003e\u003cspan class=\"term\"\u003e2500 Ω load\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd class=\"spec_tableValue\"\u003e125\u003cspan class=\"term\"\u003e.\u003c\/span\u003e5\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003e dB\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec_tableValueVT\"\u003e\u003cspan class=\"term\"\u003e1000 Ω load\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd class=\"spec_tableValue\"\u003e121\u003cspan class=\"term\"\u003e.\u003c\/span\u003e5\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003e dB\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003eClipping Level\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spectext_cond\"\u003e\u003cspan class=\"term\"\u003e20 Hz to 20 kHz\u003c\/span\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003eat 1% THD\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable class=\"specTable table\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"NaN%\"\u003e \u003ccol width=\"NaN%\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec_tableValueVT\"\u003e\u003cspan class=\"term\"\u003e2500 Ω load\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd class=\"spec_tableValue\"\u003e12\u003cspan class=\"term\"\u003e.\u003c\/span\u003e5\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003e dB\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec_tableValueVT\"\u003e\u003cspan class=\"term\"\u003e1000 Ω load\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd class=\"spec_tableValue\"\u003e7\u003cspan class=\"term\"\u003e.\u003c\/span\u003e5\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003e dB\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003eSelf Noise\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spectext_cond\"\u003e\u003cspan class=\"term\"\u003eequivalent SPL\u003c\/span\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003eA-weighted\u003c\/span\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003etypical\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"spec1_value\"\u003e29\u003cspan class=\"term\"\u003e.\u003c\/span\u003e5\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003e dB SPL-A\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003eCommon Mode Rejection\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spectext_cond\"\u003e(20\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003e Hz\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003eto\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e200\u003cspan class=\"term\"\u003e kHz\u003c\/span\u003e)\u003c\/p\u003e\n\u003cp class=\"spec1_value\"\u003e≥55\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003e dB\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003eFrequency Contour Switch\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spec1_value\"\u003e\u003cspan class=\"term\"\u003e7 dB of attenuation centered at 400 Hz\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003ePower Requirements\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spec1_value\"\u003e11\u003cspan class=\"term\"\u003e–\u003c\/span\u003e52\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003e V DC\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"term\"\u003ephantom power\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[4]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e, 5\u003cspan class=\"term\"\u003e.\u003c\/span\u003e4\u003cspan class=\"term\"\u003e mA\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003ePolarity\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spec1_value\"\u003e\u003cspan class=\"term\"\u003ePositive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003eWeight\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spec1_value\"\u003e470\u003cspan class=\"term\"\u003e g\u003c\/span\u003e(16\u003cspan class=\"term\"\u003e.\u003c\/span\u003e6\u003cspan class=\"term\"\u003e oz.\u003c\/span\u003e)\u003c\/p\u003e\n\u003ch3 class=\"spec1_title\"\u003e\u003cspan class=\"term\"\u003eConnector\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"spec1_value\"\u003e\u003cspan class=\"term\"\u003eThree-pin professional audio (XLR), male, balanced\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"spec1_fn\"\u003e\u003csup\u003e[1]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e1 Pa=94 dB SPL\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[1]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e1 Pa=94 dB SPL\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[1]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e1 Pa=94 dB SPL\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[1]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e1 Pa=94 dB SPL\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[1]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e1 Pa=94 dB SPL\u003c\/p\u003e\n\u003cp class=\"spec1_fn\"\u003e\u003csup\u003e[2]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eTHD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[2]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eTHD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[2]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eTHD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[2]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eTHD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[2]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eTHD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL\u003c\/p\u003e\n\u003cp class=\"spec1_fn\"\u003e\u003csup\u003e[3]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eS\/N ratio is the difference between 94 dB SPL and equivalent SPL of self-noise, A-weighted\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[3]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eS\/N ratio is the difference between 94 dB SPL and equivalent SPL of self-noise, A-weighted\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[3]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eS\/N ratio is the difference between 94 dB SPL and equivalent SPL of self-noise, A-weighted\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[3]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eS\/N ratio is the difference between 94 dB SPL and equivalent SPL of self-noise, A-weighted\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[3]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eS\/N ratio is the difference between 94 dB SPL and equivalent SPL of self-noise, A-weighted\u003c\/p\u003e\n\u003cp class=\"spec1_fn\"\u003e\u003csup\u003e[4]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eAll specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower voltages, but with slightly decreased headroom and sensitivity\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[4]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eAll specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower voltages, but with slightly decreased headroom and sensitivity\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[4]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eAll specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower voltages, but with slightly decreased headroom and sensitivity\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[4]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eAll specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower voltages, but with slightly decreased headroom and sensitivity\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e[4]\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eAll specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower voltages, but with slightly decreased headroom and sensitivity\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"c_2A0FF3BF-76D1-8098-20E4-9766DE57786D\"\u003e\n\u003cdiv class=\"figure\"\u003e\n\u003cp class=\"figure\" data-figid=\"f_dfc52216-b083-43d9-8522-16b08333d990\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"topic_level1 tab-pane\" id=\"u_DF9E0FEA-B68C-C107-B480-FC119BD1C8F3\"\u003e\n\u003ch1 class=\"H1_heading\"\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SHURE","offers":[{"title":"Default Title","offer_id":42432123502830,"sku":"BETA91A","price":462.55,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0432\/8590\/5574\/products\/91vu-g2s1NL._AC_SL1500.jpg?v=1769290959","url":"https:\/\/seconcept.com\/en-us\/products\/shure-beta91a","provider":"SE CONCEPT ","version":"1.0","type":"link"}