The JBL CSMA series of mixer/amplifiers, including the NCSMA280-U-US, combines a mixer and an amplifier into a single unit, facilitating easier transport and setup for a range of audio applications. The amplifier is built using Crown's DriveCore™ technology, which enhances reliability and efficiency by reducing the component count and generating less heat. The NCSMA280-U-US can drive both 8-ohm and 4-ohm loads, and is also compatible with 70V and 100V distributed audio systems without needing a separate transformer. The front panel features illuminated volume controls for each of the eight input channels, master volume knobs, and independent bass and treble controls for each output, making it easy to operate in low-light environments. It includes an auxiliary output that can be used to connect to an additional amplifier, although this output is not affected by the master volume or tone controls. The NCSMA280-U-US is ENERGY STAR® certified and adheres to HARMAN's GreenEdge™ initiative, utilizing sustainable manufacturing practices like recycled metals and an energy-saving powder coat process.