Yamaha PX3 500w Power amp 8 ohms 300w 4 ohms 500w 2ohms 300w

The Yamaha PX3 is a 2-channel Class-D power amplifier, the most compact and least powerful model in Yamaha's PX series. Despite its smaller power output compared to its siblings (PX5, PX8, PX10), it still offers the same core features of the series: high efficiency, built-in DSP, and flexible connectivity, making it an excellent choice for smaller sound reinforcement needs, passive monitor wedges, or less demanding installations.

Key Features:

• Output Power (1kHz Non-clip 20msec Burst, Both Channels Driven):

  • 8 Ohms: 300W x 2
  • 4 Ohms: 500W x 2
  • 2 Ohms: 300W x 2
  • Power Boost Mode (8 Ohms): 600W x 1 (combines power from two channels into one)
  • Power Boost Mode (4 Ohms): 1000W x 1 (for 120V models, 1200W x 1 for 220-240V models)
  • (Note: These burst ratings indicate peak power rather than continuous RMS.)

• Class-D Amplifier Engine with Custom LSI: Employs a newly developed Class-D amplifier engine with a single custom LSI chip. This design ensures high efficiency, lightweight operation, and low noise, contributing to clean and reliable audio performance.

• Comprehensive Onboard DSP (Digital Signal Processing): A significant advantage, providing robust processing capabilities that reduce the need for external PA management equipment. This includes:

  • PEQ (Parametric Equalizer): Multi-band parametric EQ on both input and output channels for detailed frequency adjustment.
  • Crossover: Built-in crossover functions to facilitate bi-amplification or proper integration of subwoofers with full-range speakers.
  • Filters: High-pass and low-pass filters for signal conditioning.
  • Delay: Adjustable delay functions for speaker alignment or zone delays.
  • Limiter: Speaker protection limiters to prevent signal clipping and safeguard connected speakers.
  • D-Contour: Yamaha's intelligent multi-band dynamic processing, which optimizes frequency response for different applications (e.g., FOH/MAIN, MONITOR, or OFF), ensuring consistent sound quality at varying output levels.

• Flexible Connectivity:

  • Inputs: Features both XLR and 1/4" TRS input connectors for broad compatibility with various audio sources.
  • Outputs: Offers versatile output options including Speakon NL4, Binding Post, and 1/4" TS (phone) jacks, allowing connection to a wide range of speaker systems.

• Yamaha Speaker Presets & Config Wizard: Comes with optimized speaker presets for various Yamaha passive loudspeakers (such as CBR, Club, Installation, and VXS/VXC series), facilitating quick and accurate system setup. The "Config Wizard" simplifies configuration by guiding users to select appropriate filters and crossovers. Users can also save up to 8 of their own custom amplifier presets.

• Intuitive User Interface: An LCD display provides clear navigation and control over all DSP functions. It offers both "Basic" and "Advanced" modes to cater to different levels of user expertise.

• USB Port: A USB Type-A port allows for convenient saving and loading of user presets, updating speaker presets, and performing firmware updates using a USB memory stick. It can also export log data for troubleshooting.

• Protection Features: Incorporates essential utilities for safe and secure operation, including a panel-locking function to prevent unauthorized changes and robust protection circuits against overload, overheating, and DC fault.

• Compact and Lightweight Design: The PX3 is designed to be highly portable, weighing approximately 14.77 lbs (6.7 kg) and occupying just 2U of rack space, making it easy to transport and integrate into various setups.

The Yamaha PX3 offers excellent value for its power class, providing the advanced DSP and reliability of the PX series in a more compact and cost-effective package, ideal for smaller venues, rehearsal spaces, or as a dedicated monitor amplifier.