In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. The XLS402 boasts up to 1,140W output power in mono (at 4 ohms) and up to 570W in stereo (at 2 ohms). This amplifier represents a new era in affordable, quality power amplification. The XLS402 has a uniform, rugged chassis, incorporating the best of tried-and true design principles and innovative features. This professional stereo power amplifier is engineered to meet demanding audio requirements reliably and within budget. Plus, every XLS Series amplifier is backed by Crowns unequaled Three-Year, No- Fault, Fully-Transferable Warranty that covers everything.