The XPIQ (Quad Intelligent Audio Transponder) for distributed multi-channel voice evacuation systems can play up to four simultaneous messages. It is an integrated audio amplification and distributed subsystem controlled by an fire alarm control panel via the signaling line circuit).

The XPIQ can direct up to four low-level audio signals from the risers to four audio amplifiers. The amplified audio signals are then directed to up to four integrated, continuously supervised speaker circuits. The XPIQ is compatible with the AM2020, AFP1010, AFP-300, AFP-400, AFC-600, and NFS-640 fire alarm control panels.