Yamaha PX3 - Two-Channel Power Amplifier with Intelligent ProcessingThe versatile PX series power amplifiers lineup combines intelligent processing with high output power to meet the requirements of a vast range of sound reinforcement environments. 300W x 2 at 8 500W x 2 at 4. Features: 2x 300W at 8 2x 500W at 4 Newly developed Class D amplifier engine with a custom LSI Flexible onboard PEQ, crossover, filters, delay, and limiter functions Yamaha Speaker presets Utlities for safe and secure operation Intelligent