{"id":8050854363316,"title":"OSD Audio SMC21 Stereo to Mono Converter – Gold-Plated RCA Connections and 1:1 Ratio Audio Transformer","handle":"osd-audio-smc21-stereo-to-mono-converter-gold-plated-rca-connections-and-1-1-ratio-audio-transformer","description":"\u003ch3\u003eOSD Audio SMC21 Stereo to Mono Converter – Gold-Plated RCA Connections and 1:1 Ratio Audio Transformer\u003c\/h3\u003e\r\n\u003cp id=\"b\"\u003eOSD Audio’s SMC21 Stereo to Mono Converter is a must-have for integrators who\r\nneed to convert stereo (left\/right) into two summed mono outputs. Although\r\nmost media devices are in stereo, not every space is acoustically suited for\r\nleft and right channel feed. Combining the audio signal into two identical\r\nsummed stereo full-range mono outputs allows a single speaker to play both\r\nchannels.The SMC21 includes gold-plated RCA input and output connections, and\r\nunlike most converters, this unit utilizes an independent 1:1 ratio audio\r\ntransformer for each channel to preserve signal integrity. Easy to install\r\nwith no power needed, simply connect the SMC21 between the stereo source\r\noutputs and right and left inputs of the power amplifier. An ideal solution\r\nfor 70V and 8-ohm multi-channel projects, integrators often use this convertor\r\nwith our XPA Series 70V power amplifier or our MX Series 8 ohm multi-channel\r\namplifiers.\u003c\/p\u003e \r\n\r\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\r\n \u003cul class=\"a\"\u003e\r\n \u003cli\u003e[Converts Stereo to Mono] Converts stereo input to two summed mono outputs to allow a single speaker to play both channels\u003c\/li\u003e\r\n \u003cli\u003e[Upgraded Features] Includes gold-plated stereo RCA input and outputs and independent 1:1 ratio audio transformer that preserves signal integrity\u003c\/li\u003e\r\n \u003cli\u003e[Easy to Install] Easy to connect between stereo source outputs and right\/left inputs of a power amplifier with no power required\u003c\/li\u003e\r\n \u003cli\u003e[Perfect for PA Systems] Ideal for converting multi-channel audio into public address distribution systems\u003c\/li\u003e\r\n \u003cli\u003e[Versatile Uses] Can be used with 70V and 8-ohm systems\u003c\/li\u003e\r\n \u003c\/ul\u003e","published_at":"2026-05-04T18:31:22+10:00","created_at":"2026-05-04T18:31:19+10:00","vendor":"OSD Audio","type":"Connectors \u0026 Adapters","tags":["industrial_April2026"],"price":15700,"price_min":15700,"price_max":15700,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":44214987653300,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B07FFBJ8KR","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"OSD Audio SMC21 Stereo to Mono Converter – Gold-Plated RCA Connections and 1:1 Ratio Audio Transformer","public_title":null,"options":["Default Title"],"price":15700,"weight":100,"compare_at_price":null,"inventory_management":"shopify","barcode":"819603019254","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/auspowers.com\/cdn\/shop\/files\/B07FFBJ8KR.jpg?v=1777994258","\/\/auspowers.com\/cdn\/shop\/files\/51dQXpZspzL.jpg?v=1777883481","\/\/auspowers.com\/cdn\/shop\/files\/51Iy-IMQwVL.jpg?v=1777883481","\/\/auspowers.com\/cdn\/shop\/files\/51BOHpHpq_L.jpg?v=1777883481","\/\/auspowers.com\/cdn\/shop\/files\/51-HRPA2dVL.jpg?v=1777883481","\/\/auspowers.com\/cdn\/shop\/files\/51la7f9A6YL.jpg?v=1777883481"],"featured_image":"\/\/auspowers.com\/cdn\/shop\/files\/B07FFBJ8KR.jpg?v=1777994258","options":["Title"],"media":[{"alt":null,"id":32911728574644,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/auspowers.com\/cdn\/shop\/files\/B07FFBJ8KR.jpg?v=1777994258"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/B07FFBJ8KR.jpg?v=1777994258","width":1000},{"alt":null,"id":32911728607412,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/auspowers.com\/cdn\/shop\/files\/51dQXpZspzL.jpg?v=1777883481"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/51dQXpZspzL.jpg?v=1777883481","width":1000},{"alt":null,"id":32911728640180,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/auspowers.com\/cdn\/shop\/files\/51Iy-IMQwVL.jpg?v=1777883481"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/51Iy-IMQwVL.jpg?v=1777883481","width":1000},{"alt":null,"id":32911728672948,"position":4,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/auspowers.com\/cdn\/shop\/files\/51BOHpHpq_L.jpg?v=1777883481"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/51BOHpHpq_L.jpg?v=1777883481","width":1000},{"alt":null,"id":32911728705716,"position":5,"preview_image":{"aspect_ratio":2.887,"height":416,"width":1201,"src":"\/\/auspowers.com\/cdn\/shop\/files\/51-HRPA2dVL.jpg?v=1777883481"},"aspect_ratio":2.887,"height":416,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/51-HRPA2dVL.jpg?v=1777883481","width":1201},{"alt":null,"id":32911728738484,"position":6,"preview_image":{"aspect_ratio":2.896,"height":404,"width":1170,"src":"\/\/auspowers.com\/cdn\/shop\/files\/51la7f9A6YL.jpg?v=1777883481"},"aspect_ratio":2.896,"height":404,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/51la7f9A6YL.jpg?v=1777883481","width":1170}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eOSD Audio SMC21 Stereo to Mono Converter – Gold-Plated RCA Connections and 1:1 Ratio Audio Transformer\u003c\/h3\u003e\r\n\u003cp id=\"b\"\u003eOSD Audio’s SMC21 Stereo to Mono Converter is a must-have for integrators who\r\nneed to convert stereo (left\/right) into two summed mono outputs. Although\r\nmost media devices are in stereo, not every space is acoustically suited for\r\nleft and right channel feed. Combining the audio signal into two identical\r\nsummed stereo full-range mono outputs allows a single speaker to play both\r\nchannels.The SMC21 includes gold-plated RCA input and output connections, and\r\nunlike most converters, this unit utilizes an independent 1:1 ratio audio\r\ntransformer for each channel to preserve signal integrity. Easy to install\r\nwith no power needed, simply connect the SMC21 between the stereo source\r\noutputs and right and left inputs of the power amplifier. An ideal solution\r\nfor 70V and 8-ohm multi-channel projects, integrators often use this convertor\r\nwith our XPA Series 70V power amplifier or our MX Series 8 ohm multi-channel\r\namplifiers.\u003c\/p\u003e \r\n\r\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\r\n \u003cul class=\"a\"\u003e\r\n \u003cli\u003e[Converts Stereo to Mono] Converts stereo input to two summed mono outputs to allow a single speaker to play both channels\u003c\/li\u003e\r\n \u003cli\u003e[Upgraded Features] Includes gold-plated stereo RCA input and outputs and independent 1:1 ratio audio transformer that preserves signal integrity\u003c\/li\u003e\r\n \u003cli\u003e[Easy to Install] Easy to connect between stereo source outputs and right\/left inputs of a power amplifier with no power required\u003c\/li\u003e\r\n \u003cli\u003e[Perfect for PA Systems] Ideal for converting multi-channel audio into public address distribution systems\u003c\/li\u003e\r\n \u003cli\u003e[Versatile Uses] Can be used with 70V and 8-ohm systems\u003c\/li\u003e\r\n \u003c\/ul\u003e"}