Yamaha PX5 - Dual-channel 800W x 2 Class D Amp

The Yamaha PX5 is a 2-channel Class-D power amplifier, part of Yamaha's PX series, designed to deliver efficient and high-quality amplification for a variety of sound reinforcement tasks. It strikes a balance between power output, advanced DSP features, and a compact, lightweight design, making it suitable for both portable setups and fixed installations.

Key Features:

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

  • 8 Ohms: 500W x 2
  • 4 Ohms: 800W x 2
  • 2 Ohms: 500W x 2
  • Power Boost Mode (8 Ohms): 800W x 1 (combines power from two channels into one)
  • Power Boost Mode (4 Ohms): 1200W x 1 (for 120V models, 1400W x 1 for 220-240V models)
  • (Note: These burst ratings indicate peak power rather than continuous RMS.)

• Class-D Amplifier Engine with Custom LSI: Features a newly developed Class-D amplifier engine with a single custom LSI chip. This design optimizes efficiency, reduces weight, and minimizes noise, contributing to impressive sound quality.

• Comprehensive Onboard DSP (Digital Signal Processing): The PX5 incorporates a powerful DSP that provides extensive control over your sound system, often eliminating the need for external processors. Capabilities include:

  • PEQ (Parametric Equalizer): Flexible multi-band parametric EQ on both input and output channels for precise tonal shaping.
  • Crossover: Built-in crossover functions for bi-amping or sub/main setups.
  • Filters: High-pass and low-pass filters for frequency management.
  • Delay: Adjustable delay functions for time alignment of speakers.
  • Limiter: Speaker protection limiters to prevent clipping and damage to speakers.
  • D-Contour: Yamaha's intelligent multi-band dynamic processing that optimizes frequency response for different applications (e.g., FOH/MAIN, MONITOR, or OFF), ensuring consistent clarity at various output levels.

• Flexible Connectivity:

  • Inputs: Equipped with both XLR and 1/4" TRS input connectors for broad compatibility.
  • 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: Includes 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" guides users through system configuration, assigning 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 experience, from quick setup to detailed parameter control.

• 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.

• Lightweight and Compact: The PX5 is designed to be highly portable, weighing approximately 15.21 lbs (6.9 kg) and occupying just 2U of rack space, making it easy to transport and integrate into various setups.

The Yamaha PX5 is a popular choice for its balance of power, advanced built-in DSP, user-friendly interface, and the reliability expected from Yamaha, making it a versatile workhorse for professional audio applications.