{"product_id":"universal-audio-mic-ua251","title":"Universal Audio Bock 251 Tube Condenser Microphone","description":"\u003cp\u003eThe Universal Audio Bock 251 is UA's flagship large-diaphragm tube condenser microphone, designed by David Bock after the classic ELAM 251 and built by hand at the UA Custom Shop in Santa Cruz, California. A German-made CK12-type capsule, a Cinemag output transformer and a new old stock ECC85 tube give it low-frequency response down to 10 Hz and higher SPL handling than a vintage 251. It is made for vocals and musical instruments.\u003c\/p\u003e\n\n\u003ch3\u003eThree Switchable Patterns\u003c\/h3\u003e\n\u003cp\u003eA switch on the mic body selects cardioid, omni or figure-8. The UA badge marks the front of this side-address mic, and the black part of the headbasket marks the rear. The mic runs from its own UA Bock 251 power supply over the included six-pin Tuchel cable and does not need phantom power.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLarge-diaphragm tube condenser, handmade at the UA Custom Shop in Santa Cruz, California\u003c\/li\u003e\n  \u003cli\u003eGerman-made dual-diaphragm CK12-type capsule with dual asymmetrical backplate\u003c\/li\u003e\n  \u003cli\u003eCinemag output transformer and new old stock ECC85 tube\u003c\/li\u003e\n  \u003cli\u003eSwitchable cardioid, omni and figure-8 patterns\u003c\/li\u003e\n  \u003cli\u003eLow-frequency response down to 10 Hz\u003c\/li\u003e\n  \u003cli\u003eApollo Channel Strip presets available through UA Connect\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Large-diaphragm tube condenser, side address\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePolar patterns:\u003c\/strong\u003e Cardioid, omni, figure-8 (switch on the mic)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapsule:\u003c\/strong\u003e 1\" dual-diaphragm CK12 type, dual asymmetrical backplate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTube:\u003c\/strong\u003e New old stock ECC85\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency range:\u003c\/strong\u003e 10 Hz to 18 kHz, ±2 dB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensitivity:\u003c\/strong\u003e -34 dB (19 mV) re 1 V at 1 Pa, 1 kHz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelf-noise:\u003c\/strong\u003e 18 dBA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum SPL:\u003c\/strong\u003e 118 dB SPL at 1% THD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDynamic range:\u003c\/strong\u003e 100 dB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSignal-to-noise ratio:\u003c\/strong\u003e 76 dB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput impedance:\u003c\/strong\u003e 150 ohms (recommended load above 1.2 kohms)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnectors:\u003c\/strong\u003e Tuchel (mic), 3-pin XLR (power supply output)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower supply:\u003c\/strong\u003e UA Bock 251 PSU, 100, 115 or 230 V AC, factory set for the region\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 8.5\" (216 mm) long, 2\" (52 mm) diameter\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMicrophone weight:\u003c\/strong\u003e 1.58 lbs (716 g)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShipping weight:\u003c\/strong\u003e 12 lbs (5.4 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUA Bock 251 microphone\u003c\/li\u003e\n  \u003cli\u003eUA Bock 251 PSU power supply\u003c\/li\u003e\n  \u003cli\u003eSix-pin Tuchel cable\u003c\/li\u003e\n  \u003cli\u003eShock mount\u003c\/li\u003e\n  \u003cli\u003eVintage-style suitcase\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Universal Audio","offers":[{"title":"Default Title","offer_id":46560000868601,"sku":"MIC-UA251","price":8599.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0746\/5766\/1177\/files\/ua-bock-251-front.jpg?v=1792173956","url":"https:\/\/blackoutaudio.com\/products\/universal-audio-mic-ua251","provider":"Blackout Audio","version":"1.0","type":"link"}