RCF Launches Multi-Channel Class D+ Class Amplifiers

RCF announces the new D+ class amplifiers of the UP 8500 range which the result of continuous research.

According to the company, the innovative D+ class circuitry allows the UP 8500 amplifiers to offer efficiency and audio performance with dual power supplies. This makes the UP8500 suitable for emergency/evacuation system applications.

A single, lightweight 19" rack has two automatic switching power supplies (230Vac and 48Vdc) and one or more separate amplification circuits with a constant voltage output of 100 or 70V, galvanically isolated to connect speaker lines with no earth.

Each amplification channel includes three analog audio inputs, all at line level and mixing. The company says these offer the possibility of managing the priority of the first input over the second. The third input is always active to interface the amplifiers with monitoring systems that use continuous audio signals.

Other details that contribute to the UP 8500 amplifiers use in 100V applications include the option of disabling the volume controls from the front panel in order to avoid inappropriate adjustments, remote shutdown for additional energy savings, and the logic output that indicates the operating status of the internal circuits, assisted by sophisticated protections.

The range now includes a single-channel 500W model and two multi-channel two by 250W and four by 125W models, thereby providing versatility of use in fixed 100V installations.