{"product_id":"redback-compact-1ru-public-address-pa-100v-amplifier-100w","title":"Redback Compact 1RU Public Address (PA) 100V Amplifier 100W","description":"\u003cp\u003eThese compact 1RU rack mount amplifiers are suitable for both stand alone PA system use, or as zone amplifiers in larger systems requiring local inputs. All models operate on 240V AC or 24V DC for battery backup operation.\u003cbr\u003e\n\u003cbr\u003e\nThe input consists of a 3-pin XLR which can be set for either balanced mic level (3mV) or balanced line level (2V), adjusted via a rear mounted trimpot. A dual RCA input is also provided with adjustable sensitivity of either 300mV or 1V. Phantom power is also provided on the input XLR. The circuit includes protection features in case of output over voltage, over current and over temperature. All are self re-setting once the fault condition is removed. Visual indication via front panel LEDs display amplifier status at all times.\u003cbr\u003e\n \u003c\/p\u003e\n\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\n\u003cul class=\"productfeatures\"\u003e\n\t\u003cli\u003eCompact 1RU 19\" rack mount design\u003c\/li\u003e\n\t\u003cli\u003eBalanced mic or line input\u003c\/li\u003e\n\t\u003cli\u003e100V line output\u003c\/li\u003e\n\t\u003cli\u003ePhantom power\u003c\/li\u003e\n\t\u003cli\u003eOverload limiting\u003c\/li\u003e\n\t\u003cli\u003eOver voltage limiting\u003c\/li\u003e\n\t\u003cli\u003eOn demand fan cooling (60W and 100W versions only)\u003c\/li\u003e\n\t\u003cli\u003eOver temperature shut down protection\u003c\/li\u003e\n\t\u003cli\u003eDual input connectors\u003c\/li\u003e\n\t\u003cli\u003eVariable input sensitivities\u003c\/li\u003e\n\t\u003cli\u003e240V AC \/ 24V DC operation\u003c\/li\u003e\n\t\u003cli\u003eAustralian designed \u0026amp; manufactured\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cbr\u003e\n\u003ca href=\"#\"\u003e\u003cimg align=\"left\" src=\"https:\/\/images.altronics.com.au\/interface\/aust-made-sml.png\" style=\"border: 0px; background: none; margin-top: 0px; margin-bottom:0px; padding-right: 20px;\"\u003e\u003c\/a\u003e\u003cb\u003e100% developed, designed \u0026amp; assembled in Australia.\u003c\/b\u003e\u003cbr\u003e\nSince 1976 Redback PA products have been manufactured in Perth, Western Australia by Altronics. With over 45 years experience in the commercial audio industry, we offer consultants, installers and end users reliable products of high build quality with local product support.\u003c\/p\u003e\n\n\u003cp\u003e\u003cbr\u003e\n\u003ca href=\"#\"\u003e\u003cimg align=\"left\" src=\"https:\/\/images.altronics.com.au\/interface\/10-year-warranty.png\" style=\"border: 0px; background: none; margin-top: 0px; margin-bottom:0px; padding-right: 20px;\"\u003e\u003c\/a\u003e\u003cb\u003eBacked by an industry leading 10 Year Manufacturer Warranty.\u003c\/b\u003e\u003cbr\u003e\nOur Redback products have a long tried and tested history of bulletproof reliability. Altronics offers a 10 Year Warranty on all Australian Made Redback products. Our local in-house service department has all the know how to answer technical queries and provide timely service.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\u003cb\u003ePower Outputs\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003eA 4250A: 100 watts RMS\u003c\/li\u003e\n\t\u003cli\u003eDistortion: \u0026lt; 0.5%, @ 1kHz\u003c\/li\u003e\n\t\u003cli\u003e \u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003eFrequency Response\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003eMic input: 50Hz - 12kHz, -3dB\u003c\/li\u003e\n\t\u003cli\u003eLine input: 50Hz - 15kHz, -3dB\u003c\/li\u003e\n\t\u003cli\u003e \u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003eSensitivity\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003eMic input: 3mV-2V balanced\u003c\/li\u003e\n\t\u003cli\u003eLine input: 300mV-1V\u003c\/li\u003e\n\t\u003cli\u003e \u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003eSignal to noise ratio\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003eMic input: \u0026gt; 75dB below rated output\u003c\/li\u003e\n\t\u003cli\u003eLine input: \u0026gt; 81dB below rated output\u003c\/li\u003e\n\t\u003cli\u003e \u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003eOutput Connectors\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003eSpeakers: Screw terminals (100V line)\u003c\/li\u003e\n\t\u003cli\u003e \u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003eInput Connectors\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003eInputs: 3 pin XLR balanced or 2 x RCA\u003c\/li\u003e\n\t\u003cli\u003e24V DC power: Screw terminals\u003c\/li\u003e\n\t\u003cli\u003e240V AC power: IEC power connector\u003c\/li\u003e\n\t\u003cli\u003e \u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003eSize \u0026amp; Weight\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003eDimensions: ≈ 483W x 210D x 44H\u003c\/li\u003e\n\t\u003cli\u003eWeight: ≈ 6.2kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp class=\"footnote\"\u003e*Specifications are subject to change without notice.\u003c\/p\u003e\n\n\u003ch3\u003eDownloads\u003c\/h3\u003e\n\n\u003cp\u003e\u003ca class=\"btn btn-info\" href=\"https:\/\/download.altronics.com.au\/files\/instructions_A4230A.pdf\" target=\"_blank\"\u003eInstructions\u003c\/a\u003e\u003c\/p\u003e","brand":"Redback","offers":[{"title":"Default Title","offer_id":53608812216593,"sku":"ALT-A4250A","price":708.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/7786\/8817\/files\/ALT-A4250A.jpg?v=1780110707","url":"https:\/\/www.teachersuperstore.com.au\/products\/redback-compact-1ru-public-address-pa-100v-amplifier-100w","provider":"Teacher Superstore","version":"1.0","type":"link"}