Sony 4 channels Basic Specifications • 4 Channels (4ch / 3ch / 2ch) • RMS at 4 Ohms: 70 Watts × 4 • RMS at 2 Ohms: 80 Watts × 4 • Bridged at 4 Ohms: 160 Watts × 2 • Maximum Power (Peak): 150 Watts × 4 • Maximum Power Bridged: 350 Watts × 2 The amplifier is very powerful.