The Whirlwind microphone splitting system provides a new level of versatility. The AS8PS10 powers up to 10 AS8X4 units, 2 RU, (Monitor) + 8 RU (PSU). It has the capability of splitting 80 mic channels. A pair of high quality Lundahl transformers (Sweden) on each channel provide superior noise rejection and balancing, making this unit the ideal choice in applications where extremely long cable runs are required. Each channel features push-buttons for engaging a 20dB input pad, 48V phantom power and a button for placing the channel into "listen" mode which adds it to a headphone monitoring buss. A three step LED monitors available headroom. All audio connections are made via Phoenix terminal strips for easy, solderless, on site termination. Internal dip switches are provided for each channel which set ground lift status and provide 20dB, 30dB, or 40dB of gain boost.