Mackie Onyx 32.4 32-channel/4-Bus Premium SR Console 32-channel / 4-bus premium analog mixer designed for live sound Onyx microphone preamps with class-leading fidelity and dynamic range on every channel 4-band Perkins EQ on every channel for warm, musical sound 6 x 2 Matrix Mixer provides 2 additional mixes for cry rooms, monitors, etc. Built-in assignable stereo compressor/limiter designed by that corporation