With 100V, 70V constant voltage outputs and 4-16 ohm constant resistance output. Commercial-grade toroidal transformers produce high performance audio on a wide range of frequencies with minimal noise and high fidelity. Intelligent limiter can reduce excess signal. Reliable protection against overload, short circuit, and power fluctuation for optimal reliability. Heat sinks and fan protect against overheating. Rubber feet and rack mount ears may be placed on tables or installed in rack cabinets.