The chosen amplifier was developed using the most advanced technology for those seeking high performance in High Voltage setups for multi-speaker audio systems and large-scale sound walls. Features: Brand: Stetsom Model: 20544-0 Specifications: ? Number of Channels: 1 RMS Power: 180,000W RMS* Power Supply Voltage: Check the battery sizing chart Frequency Response: 5Hz to 3KHz Input Impedance: 28K Ohms Current Draw (Musical Signal): 300A (0.25 Ohm) Current Draw (Bass Signal): 600A (0.25 Ohm) Dimensions (H x W x D) mm: 77 x 220 x 570 Weight: 8.0 kg PACKAGING DIMENSIONS: Height: 8.5 cm Width: 59.5 cm Depth: 23 cm BRAND DESCRIPTION: The leading brand of automotive amplifiers and antennas in Brazil, STETSOM is present in over 60 countries around the globe, making a significant impact with 4 million automotive amplifiers sold worldwide. When people hear STETSOM, they immediately associate it with the brand's slogan: "Power without limits." Since 1989, we have been committed to creating the best, always striving for improvement. That is our motto. Designed to be objects of desire, STETSOM products hold a prestigious position in the automotive sound scene. Included Items: 01 Stetsom Force Extreme High Voltage Amplifier 01 Stetsom Sticker