{"title":"Calibration","description":null,"products":[{"product_id":"gras-14aa-electrostatic-actuator-amplifier","title":"GRAS 14AA Electrostatic Actuator Amplifier","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eA high-voltage, high-gain amplifier and voltage supply for driving electrostatic actuators. Its wide frequency range supports pressure-frequency-response testing of condenser microphones from 1 Hz to 200 kHz.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GRAS Sound \u0026 Vibration","offers":[{"title":"Default Title","offer_id":47573839020203,"sku":"14AA","price":4094.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/0723\/4987\/files\/14AA_TransBG_2020.png?v=1786035860"},{"product_id":"gras-42aa-pistonphone","title":"GRAS 42AA Pistonphone","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eA precision sound source for acoustic calibration, providing a stable reference level for calibrating measurement microphones, sound level meters, and related equipment.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GRAS Sound \u0026 Vibration","offers":[{"title":"Default Title","offer_id":47575418568875,"sku":"42AA","price":3936.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/0723\/4987\/files\/42AA_Original.png?v=1786057418"},{"product_id":"gras-42ag-multifunction-sound-calibrator","title":"GRAS 42AG Multifunction Sound Calibrator","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eA portable, battery-operated precision microphone calibrator. It can be used directly with 1-inch microphones and with adapters for 1\/2-inch, 1\/4-inch, and smaller microphones.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GRAS Sound \u0026 Vibration","offers":[{"title":"Default Title","offer_id":47575420403883,"sku":"42AG","price":1770.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/0723\/4987\/files\/42AG_TransBG_WithShadow_HiRes_2020.png?v=1786057616"},{"product_id":"gras-42ap-intelligent-pistonphone","title":"GRAS 42AP Intelligent Pistonphone","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eA battery-operated precision sound source for calibrating microphones and sound-measuring equipment. Built-in barometer and thermometer support automatic correction of the calibration level.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GRAS Sound \u0026 Vibration","offers":[{"title":"Default Title","offer_id":47575421059243,"sku":"42AP","price":5097.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/0723\/4987\/files\/42AP_NEW_TransBG_WithShadow_HiRes_RGB.png?v=1786057845"},{"product_id":"gras-90ab-basic-audiometer-calibration-system","title":"GRAS 90AB Basic Audiometer Calibration System","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eA configurable system for fast setup and control of modern audiometer calibration. It supports level, frequency, and distortion measurements and can be upgraded as calibration needs change.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GRAS Sound \u0026 Vibration","offers":[{"title":"Default Title","offer_id":47575524049067,"sku":"90AB","price":20702.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/0723\/4987\/files\/GRAS90AB.jpg?v=1786631527"},{"product_id":"gras-ra0157-calibration-adapter-for-711-style-ear-simulators-in-test-fixtures","title":"GRAS RA0157 Calibration Adapter for 711-Style Ear Simulators in Test Fixtures","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eAdapter for GRAS Pistonphone 42AA\/42AP for calibration of 711-style ear simulators such as GRAS RA0045 when mounted on a GRAS KEMAR (45BB\/45BC), 45CB, 43AG or 45CA test fixtures using an ear canal extension.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GRAS Sound \u0026 Vibration","offers":[{"title":"Default Title","offer_id":47576849252523,"sku":"RA0157","price":404.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/0723\/4987\/files\/RA0157-Drawing.jpg?v=1786632697"},{"product_id":"gras-ra4800-field-verification-adapter","title":"GRAS RA4800 Field Verification Adapter","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eA field-verification adapter for UTP, surface-mount, and flush-mount microphones, enabling quick in-situ sensitivity checks without dismounting the microphone.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GRAS Sound \u0026 Vibration","offers":[{"title":"Default Title","offer_id":47576860557483,"sku":"RA4800","price":330.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/0723\/4987\/files\/GRASRA4800_WEB.jpg?v=1786632796"}],"url":"https:\/\/shop.axiometrixsolutions.com\/collections\/calibration.oembed","provider":"Audio Precision","version":"1.0","type":"link"}