{"product_id":"mono-class-d-bass-amplifier","title":"Mono Class D Bass Amplifier","description":"The Zapco ST-1650XM II is a high-performance mono Class D bass amplifier engineered to deliver exceptional low-frequency output. This amplifier boasts a powerful 1650 watts RMS at 1 ohm, 1100 watts at 2 ohms, and 750 watts at 4 ohms, making it suitable for a wide range of subwoofer configurations. Its Class D topology ensures high efficiency, rated at over 85%, contributing to less heat generation and more power output.\n\nBeyond raw power, the ST-1650XM II offers extensive control over your bass. It includes a variable subsonic filter to remove unwanted ultra-low frequencies, a variable bass boost control (0dB to 12dB) with frequency adjustment (30Hz to 80Hz) to tailor the boost to your vehicle's acoustics, and a variable electronic low-pass crossover (40Hz to 180Hz). A variable phase control (0° to 180°) further allows for precise integration with your system, ensuring optimal bass response regardless of enclosure placement. All adjustments can be easily made via the included dash-mount remote gain control.\n\nThis amplifier also supports strapping capabilities, allowing two ST-XM amplifiers to be bridged together for even greater power output. With a frequency response of 10Hz to 200Hz ±1dB and a signal-to-noise ratio greater than 85dB, it ensures a clean and dynamic bass signal. Its compact dimensions (160mm W x 52mm H x 353mm L overall) facilitate easier installation in various vehicle locations.","brand":"Zapco","offers":[{"title":"Default Title","offer_id":52866949775672,"sku":"ST-1650XM II","price":349.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687421063.webp?v=1787909952","url":"https:\/\/store.motormia.co\/products\/mono-class-d-bass-amplifier","provider":"MOTORMIA","version":"1.0","type":"link"}