{"title":"Zapco ST-B Series Amplifiers","description":"\u003ch1 style=\"text-align: center;\"\u003eST-B Series Amplifiers\u003cbr\u003eClass A\/B Full Range Amplifiers\u003c\/h1\u003e\n\u003ch1 style=\"text-align: center;\"\u003e\n\u003cbr\u003eCould Zapco put it’s 40-years of audio experience to work to develop an amp for every-day use? An amp that all can afford but that will stay true to the Zapco heritage for sound and reliability?\u003cbr\u003eAbsolutely! We can and we have! The new Studio-B amps are a testament to the fact that you can build a quality product with great sound in an amplifier for every-day use. With the Studio-B amplifiers Zapco brings the sound quality and reliability that built the Zapco legend to an amplifier that everyone can afford. The Studio-B are Class A\/B full range amps and have hi-lev.inputs, variable LP\/HP\/Full electronic crossover, and variable bass boost.\u003c\/h1\u003e","products":[{"product_id":"st-2b","title":"ST-2B | Zapco ST-B Series 2-Ch 130 watt Class AB Amplifier","description":"\u003cdiv id=\"comp-lty9wd19\" class=\"ku3DBC zQ9jDz qvSjx3 Vq6kJx comp-lty9wd19 wixui-rich-text\" data-testid=\"richTextElement\"\u003e\n\u003ch1 class=\"font_2 wixui-rich-text__text\" style=\"text-align: center;\"\u003e\n\u003cspan class=\"wixui-rich-text__text\"\u003e\u003cspan class=\"color_1 wixui-rich-text__text\"\u003eST-2B \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"wixui-rich-text__text\"\u003e\u003cspan class=\"color_1 wixui-rich-text__text\"\u003e2-Ch.  \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"wixui-rich-text__text\"\u003e\u003cspan class=\"color_1 wixui-rich-text__text\"\u003eClass AB Amplifier\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eFeatures and Functions\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e- 2-Channel, Class-AB Full Range Amplifier\u003cbr\u003e- Stable into 4 ohms bridged or 2 ohms stereo load\u003cbr\u003e- MOSFET power supply\u003cbr\u003e- RCA and OEM speaker level input\u003cbr\u003e- Variable Inputs Gain Control\u003cbr\u003e- Variable FULL \/ LP \/ HP Electronic Crossover\u003cbr\u003e- Variable Bass Boost\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e- Power @ 4Ω: 2 x 65 watts\u003cbr\u003e- Power @ 2Ω: 2 x 90 watts\u003cbr\u003e- Power @ 4Ω Bridged: 1 x 180 watts\u003cbr\u003e- THD @ Rated Power \u0026lt; 0.1%\u003cbr\u003e- Signal to Noise Ratio \u0026gt; 90dB\u003cbr\u003e- Channel separation \u0026gt; 45dB\u003cbr\u003e- Frequency Response 10Hz to 20KHz ±1dB\u003cbr\u003e- Input Sensitivity .25v to 5v\u003cbr\u003e- Overall Dimensions (mm): 182(W) x 52(H) x 230(L)\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Zapco","offers":[{"title":"Default Title","offer_id":52381027041569,"sku":"ZS2B","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/1145\/9873\/files\/ST-2B_0.jpg?v=1771882062"},{"product_id":"st-4b","title":"ST-4B | Zapco ST-B Series 4-Ch 260 watt Class AB Amplifier","description":"\u003ch1 style=\"text-align: center;\"\u003eST-4B 4-Ch. Class AB Amplifier\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch1 style=\"text-align: center;\"\u003eFeatures and Functions\u003c\/h1\u003e\n\u003cp style=\"text-align: center;\"\u003e- 4-Channel, Class-AB Full Range Amplifier\u003cbr\u003e- Stable into 4 ohms bridged or 2 ohms stereo load\u003cbr\u003e- MOSFET power supply\u003cbr\u003e- RCA and OEM speaker level input\u003cbr\u003e- Variable Inputs Gain Control\u003cbr\u003e- Variable FULL \/ LP \/ HP Electronic Crossover\u003cbr\u003e- Variable Bass Boost\u003c\/p\u003e\n\u003ch1 style=\"text-align: center;\"\u003eTechnical Specifications\u003c\/h1\u003e\n\u003cp style=\"text-align: center;\"\u003e- Power @ 4Ω: 4 x 65 watts\u003cbr\u003e- Power @ 2Ω: 4 x 90 watts\u003cbr\u003e- Power @ 4Ω Bridged: 2 x 180 watts\u003cbr\u003e- THD @ Rated Power \u0026lt; 0.2%\u003cbr\u003e- Signal to Noise Ratio \u0026gt; 90dB\u003cbr\u003e- Channel separation \u0026gt; 45dB\u003cbr\u003e- Frequency Response 10Hz to 20KHz ±1dB\u003cbr\u003e- Input Sensitivity .25v to 5v\u003cbr\u003e- Overall Dimensions (mm): 182(W) x 52(H) x 310(L)\u003c\/p\u003e","brand":"Zapco","offers":[{"title":"Default Title","offer_id":52381028679969,"sku":"ZS4B","price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/1145\/9873\/files\/ST-4B_0.jpg?v=1771882270"},{"product_id":"st-5b","title":"ST-5B | Zapco ST-B Series 5-Ch 530 watt Class AB Amplifier","description":"\u003cdiv id=\"bgLayers_comp-lwkeibhh5\" data-hook=\"bgLayers\" data-motion-part=\"BG_LAYER comp-lwkeibhh5\" class=\"MW5IWV\"\u003e\n\u003cdiv id=\"bgMedia_comp-lwkeibhh5\" data-motion-part=\"BG_MEDIA comp-lwkeibhh5\" class=\"VgO9Yg\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mesh-id=\"comp-lwkeibhh5inlineContent\" data-testid=\"inline-content\" class=\"\"\u003e\n\u003cdiv data-mesh-id=\"comp-lwkeibhh5inlineContent-gridContainer\" data-testid=\"mesh-container-content\"\u003e\n\u003cdiv id=\"comp-lty9wd19\" class=\"ku3DBC zQ9jDz qvSjx3 Vq6kJx comp-lty9wd19 wixui-rich-text\" data-testid=\"richTextElement\"\u003e\n\u003ch1 class=\"font_2 wixui-rich-text__text\" style=\"text-align: center;\"\u003e\u003cspan class=\"wixui-rich-text__text\"\u003e\u003cspan class=\"color_1 wixui-rich-text__text\"\u003eST-5B\u003c\/span\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"comp-lty9wd1f\" class=\"ku3DBC zQ9jDz qvSjx3 Vq6kJx comp-lty9wd1f wixui-rich-text\" data-testid=\"richTextElement\"\u003e\n\u003ch1 class=\"font_2 wixui-rich-text__text\" style=\"text-align: center;\"\u003e\u003cspan class=\"wixui-rich-text__text\"\u003e\u003cspan class=\"color_1 wixui-rich-text__text\"\u003e5-Ch. Class AB Amplifier\u003c\/span\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eFeatures and Functions\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e- 5-Channel, Class-AB Full Range Amplifier\u003cbr\u003e- Stable into 4 ohms bridged or 2 ohms stereo load\u003cbr\u003e- MOSFET power supply\u003cbr\u003e- RCA and OEM speaker level input\u003cbr\u003e- Variable Inputs Gain Control\u003cbr\u003e- Variable FULL \/ LP \/ HP Electronic Crossover\u003cbr\u003e- Variable Bass Boost\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e- Power @ 4Ω: 4 x 70 + 1 x 250 watts\u003cbr\u003e- Power @ 2Ω: 4 x 100 + 1 x 400 watts\u003cbr\u003e- Power @ 4Ω Bridged: 2 x 180 + 1 x 400 (2Ω)\u003cbr\u003e- THD @ Rated Power \u0026lt; 0.2%\u003cbr\u003e- Signal to Noise Ratio \u0026gt; 90dB\u003cbr\u003e- Channel separation \u0026gt; 45dB\u003cbr\u003e- Frequency Response 10Hz to 20KHz ±1dB\u003cbr\u003e- Input Sensitivity .25v to 5v\u003cbr\u003e- Overall Dimensions (mm): 182(W) x 52(H) x 381(L)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Zapco","offers":[{"title":"Default Title","offer_id":52381028778273,"sku":"ZS5B","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/1145\/9873\/files\/ST-5B_0.jpg?v=1771882431"},{"product_id":"st-1b","title":"ST-1B | Zapco ST-B Series 1-Ch 300 watt Mono Class AB Amplifier","description":"\u003ch1 style=\"text-align: center;\"\u003eST-1B\u003cbr\u003eMono Class AB Amplifier\u003c\/h1\u003e\n\u003ch2 style=\"text-align: center;\"\u003eFeatures and Functions\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e- Mono Class-AB Amplifier\u003cbr\u003e- MOSFET power supply\u003cbr\u003e- RCA input and output\u003cbr\u003e- Variable Inputs Gain Control\u003cbr\u003e- Variable LP Electronic Crossover\u003cbr\u003e- Variable Bass Boost\u003cbr\u003e- Phase 0-180°\u003cbr\u003e- Subsonic filter\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e- Power @ 4Ω: 200 watts\u003cbr\u003e- Power @ 2Ω: 300 watts\u003cbr\u003e- THD @ Rated Power \u0026lt; 0.2%\u003cbr\u003e- Signal to Noise Ratio \u0026gt; 90dB\u003cbr\u003e- Input Sensitivity .25v to 5v\u003cbr\u003e- Overall Dimensions (mm): 182(W) x 52(H) x 310(L)\u003c\/p\u003e","brand":"Zapco","offers":[{"title":"Default Title","offer_id":52381028811041,"sku":"ZS1B","price":139.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/1145\/9873\/files\/ST-1B_0.jpg?v=1771882480"},{"product_id":"st-br","title":"ST-BR | Zapco ST-B Series ST-B Amplifier Bass Remote Level Control","description":"\u003ch1 style=\"text-align: center;\"\u003eST-BR   Remote Level Control\u003cbr\u003e\n\u003c\/h1\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cbr\u003eAn accessory remote level control for the Zapco STUDIO Series. You can mount the ST-BR under dash with the solid housing. The ST-BR is included with ST-X mono amplifiers.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eFeatures and Functions\u003cbr\u003eRemote Level Control\u003cbr\u003eUnder Dash installation\u003cbr\u003eCompatible Amplifiers: ST-6X SQ III, ST-XM III mono amps (all), ST-5B, ST-1B\u003c\/p\u003e","brand":"Zapco","offers":[{"title":"Default Title","offer_id":52381030482209,"sku":"ZSBRB","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/1145\/9873\/files\/0bf3d1_2d5c8fe57dbb4c8a888c3292279c203d_mv2.avif?v=1771882620"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/1145\/9873\/collections\/0bf3d1_bd6eb072c5c54897b6feb35cdb93f514_mv2.png?v=1771881951","url":"https:\/\/www.shopalumapro.com\/collections\/zapco-st-b-series-amplifiers.oembed","provider":"ShopAlumapro.com","version":"1.0","type":"link"}