No - Yes - 4 Channel Car Amplifiers

In the case of a 4 channel amplifier, use two channels to drive a pair of full-range speakers, and bridge the other 2 channels to power a sub-woofer. Among many features of a 4 channel amplifier are remote sub-woofer level control, tri-mode operation, bridgeable channels and max bridged power to 1000W. Four channel car amplifier provide users multiple input/output selectors to power up to four devices. This is great if you need to power an entire sound system.

Soundstream Stealth Series ST3.1000D 3 Channel Class D Amplifier - 1000 Watts
$139.99
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Stealth series 1000 watts full range amplifier
2-Ohms: 100 Watts x 2 channel, 300W sub
4-Ohms: 65 Watts x 2 channel, 200W sub
4-Ohms/Bridged: 200 Watts x 1 channel, 300W sub
Aluminum heat sink for better cooling
MOSFET Power Supply with Audiophile Grade IRTM Transistors
Military Grade SMT PCB Maintains Dynamic Performance
2-ohm Stereo and 4-ohm Bridged Full Range Operation
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