The Atlas Sound F6 Amplifier Mainframe System is the industry's most versatile multi-channel amplifier. An innovative, modular input and 6-bay output section allows the F6 to be easily configured for most 4ohm/8ohm or 70.7V zone amplification applications. Each module has 250W of output power and each features a defeatable limiter and high pass filter. The F6 FM250 series power modules are designed to be 90% efficient allowing the amplifier to run cooler and consume less energy than conventional commercial amplifiers.