The X-series amplifiers are two-channel amplifiers at a compact size of 2 and 3 HU (rack spaces). The X-series amplifiers offer clean, dynamic sound quality and reliability that pros depend on. The front panel shows two gain controls for easy access and the main switch. The LED display informs about the condition of the amplifiers. The rear side shows two XLR input connectors and two XLR output connectors (link). Two SPEAKON© outputs and four binding posts (not at X6000) are mounted at the rear side. The SPEAKON© connector of output 1 (left) is connected at all four poles. This connector offers the output signal of channel 2 (right) at the pins 2 (+/-). This enables a four-pole connection of two-way speaker systems with one speaker cable only. The bridged output is available at the binding posts. The X-series amplifiers can be switched into three different operation modes: stereo, parallel and bridge mode. The limiters can be switched on or off. All models are equipped with a switch-on delay to protect the connected speakers.