{"product_id":"radio-design-labs-sf-pa50a-audio-amplifier-50w","title":"Radio Design Labs SF-PA50A Audio Amplifier 50W","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe RADIO DESIGN LABS SF-PA50A is a 50-watt audio amplifier designed for 70-volt and 100-volt distributed audio systems. It delivers consistent power output to commercial and institutional speaker networks, making it a standard install component in applications where multiple speakers are wired in parallel across a high-impedance distribution line. Licensed audio and low-voltage contractors install this type of amplifier in ceiling speaker systems, background music setups, and paging networks. The SF-PA50A provides the signal amplification needed to drive long speaker runs without significant signal loss.\u003c\/p\u003e\u003cp\u003eThis amplifier is suited for commercial and light institutional audio distribution where 70-volt or 100-volt line-level speaker systems are the standard architecture. Typical installations include retail spaces, offices, restaurants, schools, and similar venues where background audio or paging is distributed across multiple zones. It falls within the mixer\/amplifier product category and ships as a single unit.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e50-watt continuous power output for 70V and 100V distributed speaker systems\u003c\/li\u003e\n\u003cli\u003eSupports high-impedance line distribution, enabling long cable runs to multiple speakers\u003c\/li\u003e\n\u003cli\u003eCompact form factor suited for rack or cabinet installation in commercial AV setups\u003c\/li\u003e\n\u003cli\u003eDesigned for background music, paging, and multi-speaker zone applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a replacement or new-install amplifier for 70-volt and 100-volt distributed audio speaker systems commonly found in commercial and light institutional environments.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed low-voltage or audio contractor familiar with distributed speaker system wiring and applicable local codes. Disconnect and de-energize all connected circuits before servicing or wiring the amplifier. Verify that the total speaker load does not exceed the rated output wattage before completing the installation. Follow local building and electrical codes for signal and power wiring in commercial spaces.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Output\u003c\/strong\u003e: 50 watts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistribution Voltage\u003c\/strong\u003e: 70 volts \/ 100 volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Per Unit\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: RADIO DESIGN LABS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SF-PA50A\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RADIO DESIGN LABS","offers":[{"title":"Default Title","offer_id":51722870260018,"sku":"SF-PA50A","price":901.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fcdb9970fa33c21ae21382dcd9b38fa8.jpg?v=1788597156","url":"https:\/\/voomisupply.com\/products\/radio-design-labs-sf-pa50a-audio-amplifier-50w","provider":"Voomi Supply","version":"1.0","type":"link"}