{"product_id":"mb-quart-na3-560-4-4-channel-marine-amplifier-70w-x-4","title":"MB Quart NA3-560.4  4-Channel Marine Amplifier - 70W x 4","description":"\u003cbody\u003e\r\n\r\n\r\n\r\n\r\n\u003cp\u003e\u003c!--StartFragment--\u003e\u003c\/p\u003e\r\n\u003cp style=\"margin: 0in; font-family: Calibri; font-size: 16.0pt;\"\u003e\u003cspan style=\"background-color: #fbeeb8;\"\u003e\u003cspan style=\"font-weight: bold; color: black;\"\u003eMB Quart \u003c\/span\u003e\u003cspan style=\"font-weight: bold; color: #fa0000; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\"\u003eNA3-560.4\u003c\/span\u003e\u003cspan style=\"font-weight: bold; color: black;\"\u003e  4-Channel Marine Amplifier - 70W x 4\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"background-color: #fbeeb8;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp style=\"margin: 0in; font-family: Calibri; font-size: 12.0pt; color: black;\"\u003e \u003c\/p\u003e\r\n\u003cp style=\"margin-top: 0pt; margin-bottom: 11pt; font-family: Calibri; font-size: 12.0pt; color: black;\"\u003eWhether cruising through waves, sand, or mud — you want to hear your tunes clearly over the noise of having fun. MB Quart's NA3-560.4 marine amplifier can send four speakers 70 watts each to keep the music playing no matter where you are. This rugged and compact amplifier utilizes a number of technologies that ensure normal operation no matter what the conditions are — like over\/under voltage protection, thermal slow-down (not shut-down), and current limiting on the outputs to protect speakers.\u003c\/p\u003e\r\n\u003cp style=\"margin: 0in; font-family: Calibri; font-size: 12.0pt; color: black;\"\u003e\u003cspan style=\"font-weight: bold;\"\u003eVersatile amp\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp style=\"margin-top: 0pt; margin-bottom: 11pt; font-family: Calibri; font-size: 12.0pt; color: black;\"\u003eYou can configure this amplifier as a 2-channel amp and send 280 watts each to a pair of tower speakers, for example. In 3-channel mode the amp can power a pair of speakers with 70 watts each and a sub with 280 watts. The onboard variable tone controls let you tailor the sound to match your particular speakers and subs.\u003c\/p\u003e\r\n\u003cp style=\"margin: 0in; font-family: Calibri; font-size: 12.0pt; color: black;\"\u003e\u003cspan style=\"font-weight: bold;\"\u003eMarine tough\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp style=\"margin-top: 0pt; margin-bottom: 11pt; font-family: Calibri; font-size: 12.0pt; color: black;\"\u003eThree decades of marine and powersports audio expertise goes into making each MB Quart marine amplifier. Conformal coating protects the internal circuits from water and dirt, while stainless-steel hardware resists corrosion in even the saltiest environments. MB Quart designed and tested this amp to stand up to the toughest conditions on the water and off the beaten path.\u003c\/p\u003e\r\n\u003cp style=\"margin: 0in; font-family: Calibri; font-size: 12.0pt; color: black;\"\u003e\u003cspan style=\"font-weight: bold;\"\u003eProduct highlights:\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cul style=\"direction: ltr; unicode-bidi: embed; margin-top: 0in; margin-bottom: 0in;\" type=\"disc\"\u003e\r\n\u003cli style=\"margin-top: 0; margin-bottom: 0; vertical-align: middle; color: black;\"\u003e\u003cspan style=\"font-family: Calibri; font-size: 12.0pt;\"\u003e4-channel marine amplifier\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cul style=\"direction: ltr; unicode-bidi: embed; margin-top: 0in; margin-bottom: 0in;\" type=\"circle\"\u003e\r\n\u003cli style=\"margin-top: 0; margin-bottom: 0; vertical-align: middle; color: black;\"\u003e\u003cspan style=\"font-family: Calibri; font-size: 12.0pt;\"\u003e70 watts x 4 at 4 ohms\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"margin-top: 0; margin-bottom: 0; vertical-align: middle; color: black;\"\u003e\u003cspan style=\"font-family: Calibri; font-size: 12.0pt;\"\u003e140 watts x 4 at 2 ohms\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"margin-top: 0; margin-bottom: 0; vertical-align: middle; color: black;\"\u003e\u003cspan style=\"font-family: Calibri; font-size: 12.0pt;\"\u003e280 watts x 2 bridged at 4 ohms\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cli style=\"margin-top: 0; margin-bottom: 0; vertical-align: middle; color: black;\"\u003e\u003cspan style=\"font-family: Calibri; font-size: 12.0pt;\"\u003evariable low- and high-pass filters (50-250 Hz, 12 dB\/octave)\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"margin-top: 0; margin-bottom: 0; vertical-align: middle; color: black;\"\u003e\u003cspan style=\"font-family: Calibri; font-size: 12.0pt;\"\u003evariable bass boost (0-9 dB at 45 Hz)\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"margin-top: 0; margin-bottom: 0; vertical-align: middle; color: black;\"\u003e\u003cspan style=\"font-family: Calibri; font-size: 12.0pt;\"\u003econformal-coated circuit board\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"margin-top: 0; margin-bottom: 0; vertical-align: middle; color: black;\"\u003e\u003cspan style=\"font-family: Calibri; font-size: 12.0pt;\"\u003eweather-resistant construction\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp style=\"margin: 0in; font-family: Calibri; font-size: 12.0pt; color: black;\"\u003e \u003c\/p\u003e\r\n\u003cp style=\"margin: 0in; font-family: Calibri; font-size: 12.0pt; color: black;\"\u003e\u003cspan style=\"font-weight: bold;\"\u003eMore Info:\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cul style=\"direction: ltr; unicode-bidi: embed; margin-top: 0in; margin-bottom: 0in;\" type=\"disc\"\u003e\r\n\u003cli style=\"margin-top: 0; margin-bottom: 0; vertical-align: middle; color: black;\"\u003e\u003cspan style=\"font-family: Calibri; font-size: 12.0pt;\"\u003epreamp and speaker-level inputs\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cul style=\"direction: ltr; unicode-bidi: embed; margin-top: 0in; margin-bottom: 0in;\" type=\"circle\"\u003e\r\n\u003cli style=\"margin-top: 0; margin-..\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/body\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":44026920403169,"sku":"NA3-560.4","price":379.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/5056\/6113\/files\/51LWiCEJg9L.jpg?v=1692308671","url":"https:\/\/karspart.com\/products\/mb-quart-na3-560-4-4-channel-marine-amplifier-70w-x-4","provider":"Karspart","version":"1.0","type":"link"}