Yamaha PX3  2x300W/2x500W Class-D Power Amplifier with DSP Processing & Speaker Presets

Product Introduction

The Yamaha PX3 is a versatile power amplifier delivering 300W x 2 at 8Ω and 500W x 2 at 4Ω, designed for professional sound reinforcement in live, installed, and portable systems. Featuring Yamaha’s newly developed Class-D amplifier engine with custom LSI, the PX3 combines intelligent DSP processing with high-efficiency power output, ensuring clear, powerful, and reliable performance in any environment. With built-in EQ, crossover, delay, and limiter functions, along with Yamaha speaker presets, the PX3 offers unmatched flexibility and system optimization.

Key Features

• Power Output: 300W x 2 (8Ω) / 500W x 2 (4Ω) / 1000W (4Ω Bridge)

• Class-D Amplifier with Yamaha custom LSI for high efficiency and low distortion

• Flexible DSP Processing: PEQ, crossover, delay, filters, limiter

• Yamaha Speaker Presets for quick system optimization

• Protection Circuits: load, thermal, overcurrent, overvoltage, and power supply safeguards

• Durable Design: rack-mountable 2U chassis with variable-speed fans for stable cooling

• User Presets: up to 8 amplifier presets including Yamaha passive speaker settings

• USB Port: for firmware updates, speaker presets, and memory storage

 Technical Specifications

• Output Power (20ms Burst, both channels driven, 1kHz)

  • 8Ω: 300W x 2

  • 4Ω: 500W x 2

  • 2Ω: 300W x 2

  • 8Ω Bridge: 600W x 1

  • 4Ω Bridge: 1000W x 1

• Amplifier Class: Class-D, Balanced Output Circuit (BTL)

• Frequency Response: 20Hz – 20kHz (±1.0dB)

• Total Harmonic Distortion: 0.1% (1kHz, 10W), 0.3% (Half Power)

• S/N Ratio: 100dB (A-weighted)

• Crosstalk: < -60dB

• Voltage Gain / Sensitivity: Multiple gain settings (22–35dB)

• A/D & D/A Converters: 24-bit linear, 128x oversampling

• Sampling Frequency: 48kHz

• Latency: 1.5ms (Analog In to Speaker Out)

• I/O Connectors:

  • Speaker Output: Neutrik speakON NL4 x2, Binding Post x2 pairs, 1/4" TS x2

  • Line Input: XLR-3-31 x2, 1/4" TRS x2

  • USB 2.0 (for preset & firmware updates)

• Processors: D-CONTOUR (FOH/Monitor), HPF/LPF, Delay (0–74ms), 6-band PEQ + Limiter

• Cooling: Dual 16-step variable speed fans, front-to-rear airflow

• Power Requirements: 100V / 120V / 220–240V (±10%)

• Power Consumption: 160W (1/8 Max Power, 4Ω), 55W (Idle)

• Dimensions (W x H x D): 480 x 88 x 388 mm (2U Rack)

• Net Weight: 6.9 kg

• Accessories: AC Cable (2.0m), USB Cover, Manual, Spec Sheet