{"product_id":"st-500xm-iii","title":"ST-500XM III | Zapco STX-III Series 1Ch 500 watt Mono Class D Amplifier","description":"\u003ch1 style=\"text-align: center;\"\u003eST-500XM III Mono Class D Amplifier\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- Single channel, Class D, Bass Amplifier\u003cbr\u003e- New aluminum chassis\u003cbr\u003e- Variable input gain control\u003cbr\u003e- Variable electronic crossover\u003cbr\u003e- Variable subsonic filter\u003cbr\u003e- Variable bass boost control\u003cbr\u003e- Variable center frequency for bass boost\u003cbr\u003e- Variable phase control\u003cbr\u003e- Strappable to use a pair of amps on a single voice coil\u003cbr\u003e- Dash mount remote gain control\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e- Power @ 1Ω: 1 x 400 watts\u003cbr\u003e- THD @ Rated Power \u0026lt; 0.2%THD\u003cbr\u003e- Power @ 2Ω: 1 x 300 watts\u003cbr\u003e- Power @ 4Ω: 1 x 200 watts\u003cbr\u003e- Signal to Noise Ratio \u0026gt; 85dB\u003cbr\u003e- THD + Noise \u0026lt; 0.2%\u003cbr\u003e- Efficiency \u0026gt; 85%\u003cbr\u003e- Frequency Response 10Hz to 200Hz ±1dB\u003cbr\u003e- Input Sensitivity .25v to 5v\u003cbr\u003e- Overall Dimensions (mm): 160(W) x 58(H) x 225(L)\u003c\/p\u003e","brand":"Zapco","offers":[{"title":"Default Title","offer_id":52381025042721,"sku":"ZS51M3","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/1145\/9873\/files\/ST500XMIII_1_1.jpg?v=1771878799","url":"https:\/\/www.shopalumapro.com\/products\/st-500xm-iii","provider":"ShopAlumapro.com","version":"1.0","type":"link"}