Peavey 400 Booster is a high-powered amplifier capable of delivering 200 watts RMS into 4 ohms with less than 0.1% THD. It can also bridge to deliver 310 watts RMS into a 2-ohm load. The 400 Booster features paralleled inputs for both balanced and unbalanced inputs, allowing for bridging of multiple units or use with electronic crossovers. With a wide dynamic range, it can handle a variety of input voltages, including those from speaker output lines. The large VU meter aids in system balancing and monitoring the output signal.