{"product_id":"stereo-subwoofer-output-2-1-hifi-preamplifier-board-front-stage-amplifier-module-15w-ac-dual-12-18v","title":"Stereo + Subwoofer Output 2.1 HiFi Preamplifier Board Front-stage Amplifier Module 15W AC Dual 12-18V","description":"\u003cp\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003e- 2.1 Front stage board with left and right stereo sound, plus a subwoofer speaker (subwoofer speaker), equivalent to 3 independent amplifiers, 2 left and right channels, and 1 subwoofer. The subwoofer is used to compensate for the subwoofer part of the stereo sound, usually with frequencies below 100HZ. This 2.1 front stage board needs to be paired with a 3-channel rear stage amplifier board. It is recommended to use one board with 3-channel amplification circuits, or a 2-channel rear stage board with a single channel rear stage board. The speaker needs a stereo speaker and paired with a subwoofer, this combination is what we call the 2.1 sound system.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Preamplifier Board\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.comseek.com\/image\/catalog\/101206\/101206-01.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.comseek.com\/image\/catalog\/101206\/101206-02.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.comseek.com\/image\/catalog\/101206\/101206-03.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.comseek.com\/image\/catalog\/101206\/101206-04.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.comseek.com\/image\/catalog\/101206\/101206-05.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.comseek.com\/image\/catalog\/101206\/101206-06.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":41028952129585,"sku":"101206","price":53.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/1774488951-1.jpg?v=1780364957","url":"https:\/\/www.thanksbuyer.com\/ru\/products\/stereo-subwoofer-output-2-1-hifi-preamplifier-board-front-stage-amplifier-module-15w-ac-dual-12-18v","provider":"Thanksbuyer Online,SDR Radio, Testers and Measurement devices, Astronomy products,  Audio Amplifer and Decoders","version":"1.0","type":"link"}