MB Quart XA1-600.4 600W 4-Channel X-Line Series Class SQ A/B Amplifier<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>MB Quart Xa1-600.4 600 Watt RMS X-Line 4-Channel Car Stereo Amplifier</li><li>Affordable high-end amplifiers with striking design</li><li>Elaborate preamplifier with extended control</li><li>Q-Stasis preamp stage with wide input range</li><li>Class SQ A/B topology designed by Lukas Lowe</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31II%2BR2kuZL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/310aPPza-gL.jpg" noproxy>