These networked Audio Power Amplifiers support a full range of commercial paging, public address applications, and residential audio applications, regardless of the venue size. Both the NQ-A2060 and the NQ-A2120 can operate in 2-channel or single channel bridged mode, depending on the application need. Each networked audio power amplifier is a half-rack 1RU high enclosure containing a Class D audio power amplifier, a universal switched-mode power supply, an RJ45 network jack, a USB port, and pluggable Phoenix style terminals for loudspeaker and Line-In connections. Optionally, LineIn can be connected using the available RCA connectors.