JBL GX-A604 435W 4-Channel GX Series Amplifier<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>GX Series 4-Channel Car Amplifier</li><li>RMS Power Rating: 4 ohms: 60 watts x 4 chan. / 2 ohms: 85 watts x 4 chan. / Bridged: 4 ohms: 170 watts x 2 chan.</li><li>Max power output: 435 watts</li><li>Variable Bass Boost (0 to +12 dB bass boost at 45 Hz)</li><li>4， 3 or 2 channel operation</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41JN5TFxhqL.jpg" noproxy>