{"product_id":"mb-quart-ra1-280-4-reference-series-4-channel-car-amplifier-50w-rms-x-4","title":"MB Quart RA1-280.4 Reference Series 4-Channel Car Amplifier - 50W RMS 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;\"\u003eRA1-280.4\u003c\/span\u003e\u003cspan style=\"font-weight: bold; color: black;\"\u003e Reference Series 4-Channel Car Amplifier - 50W RMS 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;\"\u003eMB Quart's Reference Series RA1-280.4 four-channel amplifier provides 50 watts of power to two pairs of speakers, so you can hear and feel your music clearly over road and engine noise. Designed to power high-quality aftermarket speakers, like their Reference Series speakers and components, this Class D amplifier utilizes MB Quart's unique Q-Stasis (Class SQ) circuitry to improve the accuracy and clarity of your music.\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 features\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;\"\u003eThe amplifier's features include speaker-level inputs with signal-sensing amp turn-on, so it's ready to work in almost any system. A high-pass filter shapes the signal to fit your full-range speakers for their best-sounding output. You can also configure this amp for two-channel operation to power a pair of subwoofers with up to 140 watts each or for three-channel operation to power a pair of speakers with 50 watts each while powering a sub with 140 watts. A low-pass filter and a bass boost EQ help dial in just the right kind of bass bump you like.\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 car 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;\"\u003e50 watts RMS 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;\"\u003e70 watts RMS 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;\"\u003e140 watts RMS 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\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-bottom: 0; vertical-align: middle; color: black;\"\u003e\u003cspan style=\"font-family: Calibri; font-size: 12.0pt;\"\u003espeaker wire-to-RCA adapters required for speaker-level input\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;\"\u003eDC offset-sensing turn-on with speaker-level input\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;\"\u003ewiring, fuse, and hardware not included with 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-..\"\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/body\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":44031172640993,"sku":"RA1-280.4","price":229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/5056\/6113\/files\/open-uri20230821-643247-cb6zcj.jpg?v=1692643860","url":"https:\/\/karspart.com\/products\/mb-quart-ra1-280-4-reference-series-4-channel-car-amplifier-50w-rms-x-4","provider":"Karspart","version":"1.0","type":"link"}