{"product_id":"pro-intercom-ad903-2-to-4-wire-adaptor-active-transformer-isolation-audio-in-out","title":"Pro Intercom AD903 2-to-4 Wire Adaptor Active Transformer Isolation Audio In \u0026 Out","description":"\u003cdiv id=\"Overview\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe AD903 has many functions for getting various levels of audio into an intercom circuit, or getting the intercom audio \"traffic' out to an amplifier or recorder.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIt is also useful as a 2-to-4 wire adaptor for connecting 4-wire communications into and out of a standard intercom circuit.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eBoth the input and the output are transformer isolated from whatever devices are connected. The wide range of level adjustments will accommodate almost any audio signal.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe 'Null\" control allows you to minimize or even eliminate any \"cross-talk' between the input and output.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe input transformer is a studio grade device and will not degrade any audio that you feed it.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAccess to the input and output are via a rear panel 4-pin XLR. Pins 1 and 2 are input and pins 3 and 4 are output.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe AD903 connects to the intercom circuit just as a beltpack does, through a rear panel 3-pin XLR.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe AD903 is also commonly used for connecting to a video camera CCU where a built-in intercom is provided that is not compatible with Pro Intercom or any of the other 200 Ohm unbalanced intercom systems.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe AD903 is powered by the intercom system and requires no batteries or separate power supply.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Features\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTransformer Isolated I\/O\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eUse as 2-to-4 Wire Adapter\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e4-pin XLR Input \u0026amp; Output\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNo Power Supply Needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Specifications\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003ePower requirement:\u003c\/strong\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e24 - 30 VDC, 15-25 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eInput:\u003c\/strong\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e-60 to +30 dBm into 10K ohm nominal, balanced and floating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eOutput:\u003c\/strong\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e-60 to +30 dBm from 200 ohm nominal source, balanced and floating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eSidetone rejection:\u003c\/strong\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e50 dBA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eAudio bridging impedance (to the intercom system):\u003c\/strong\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e200 ohm unbalanced\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eSize:\u003c\/strong\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e3.70 x 4.30 x 2.50 in.(93.98 x 109.22 x 63.5 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eWeight:\u003c\/strong\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e14.5 oz (0.411 Kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Pro Intercom","offers":[{"title":"Default Title","offer_id":40475174633551,"sku":"AD903","price":711.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/9466\/9382\/products\/ad903_2__35024.jpg?v=1670263556","url":"https:\/\/shop.musicredone.com\/products\/pro-intercom-ad903-2-to-4-wire-adaptor-active-transformer-isolation-audio-in-out","provider":"RedOne Music Canada","version":"1.0","type":"link"}