HIGH POWER: The SVC300 is rated at 300 Watts per channel with minimal bass roll-off. It includes front mounted adjustable impedance jumpers to add up to eight pairs of 8 ohm speakers simultaneously. VOLUME CONTROL: The controls allow you to adjust the volume of a pair of speakers independently of other speakers in a house audio system. They are ideal for both softer and higher volume locations. IMPEDANCE PROTECTION: This feature of SVC300 assists in stabilizing the ohm load going back to the amp or receiver with parallel connections to avoid overheating and damaging expensive equipment. KNOB: Simple to wire with a 12-step, high-quality autoformer design, the rotary-style knob allows a wide range of listening volumes. White, ivory and almond trim decor plates are included. DESIGN: For dedicated audio zones, the SVC300 install easily into the wall and works with most systems. Removable and solderless terminals accept up to 14 gauge wiring and fits in a standard gang box.