The C 5:4X is a versatile four-channel amplifier, delivering 4 × 125 W* at 4 ohms, 8 ohms, 16 ohms or 70 Vrms; 250 W at 100 Vrms is available in bridge mode.

The C 5:4X is one of four C…X models in the C Series, each uniquely suited for a range of installed applications with relatively lower power output requirements. C…X models share most features of the original (higher power) C Series models, and they share the same compact, lightweight 2U chassis. However, the C…X models are offered in both four- and eight-channel versions, offering even greater channel density and installation flexibility. Also, because the unique benefits of Class TD® are more applicable at higher power levels, the C…X models employ a cost-efficient proprietary Class D output design. Other features unique to C…X models include a universal power

• Four channels in 2U - High channel density reduces space requirements and installation time
• High continuous output power of 125 W per channel at 70 V, 4 ohms, 8 ohms, and 16 ohms*
• All channels individually selectable for lo-Z or hi-Z Loudspeakers (2 ohm – 16 ohm) and distributed systems can be connected to the same unit
• Bridged operation – Channel pairs bridgeable for increased output or for driving 100 V systems
• Patented output stage based on Class D topology
• High efficiency for lower thermal stress
• General Purpose Input/Output (GPIO) – Compatible with third-party control systems
• NomadLink® network ready
• Universal Power Factor Corrected PSU with IEC inlet
• Efficient cooling – Dual variable speed, intelligent fans and parallel airflow over output devices provide uniform cooling
• Comprehensive circuit protection and fault indication
• Phoenix-style input connectors and barrier strip output connectors

More Info: C 5:4X - Introduction | Lab.gruppen