Yamaha PX8 Power Amp - Dual-channel 1,050W Class D Amp

The Yamaha PX8 is a powerful and efficient 2-channel Class-D power amplifier, part of Yamaha's PX series. It's designed to provide high output and intelligent signal processing for a variety of sound reinforcement applications, from live bands and DJs to fixed installations.

Here are the key features and specifications of the Yamaha PX8:

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

  • 8 Ohms: 800W x 2
  • 4 Ohms: 1050W x 2
  • 2 Ohms: 600W x 2
  • (Note: These burst ratings indicate peak power rather than continuous RMS.)

• Class-D Amplifier Engine with Custom LSI: Utilizes a newly developed Class-D amplifier engine that integrates all necessary functions into a single custom LSI chip. This design contributes to its high efficiency, reduced weight, and low noise performance.

• Onboard DSP (Digital Signal Processing): The PX8 features extensive onboard DSP capabilities, eliminating the need for external PA management systems for many applications. This includes:

  • PEQ (Parametric Equalizer): Flexible multi-band parametric EQ on both input and output channels for precise frequency sculpting.
  • Crossover: Built-in crossover functions for easily setting up bi-amped systems or integrating subwoofers.
  • Filters: High-pass and low-pass filters.
  • Delay: Adjustable delay functions for time alignment of speakers in larger systems or for zone delays.
  • Limiter: Speaker protection limiters to prevent signal clipping and potential damage to connected loudspeakers.
  • D-Contour: Yamaha's intelligent multi-band dynamic processing that optimizes frequency response and dynamics for different uses (e.g., FOH/MAIN or MONITOR), ensuring consistent clarity.

• Flexible Connectivity:

  • Inputs: Features both XLR and 1/4" TRS input connectors for broad compatibility with mixers and other audio sources.
  • Outputs: Offers a variety of output connectors including Speakon NL4, Binding Post, and 1/4" TS (phone) jacks, allowing connection to diverse speaker configurations.

• Yamaha Speaker Presets & Config Wizard: Comes with optimized speaker presets for various Yamaha passive loudspeakers (including CBR, Club, Installation, and VXS/VXC series), allowing for quick and accurate system setup. The "Config Wizard" further simplifies setup 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 easy navigation and control over all DSP functions. It supports both "Basic" and "Advanced" setup modes to accommodate users with different levels of experience.

• USB Port: A USB Type-A port allows for convenient saving and loading of user presets, updating speaker presets, and performing firmware updates via a USB memory stick.

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

• Compact and Lightweight Design: Despite its power, the PX8 is designed to be lightweight (approximately 15.87 lbs / 7.2 kg) and occupies just 2U of rack space, making it easy to transport and integrate into touring rigs or fixed installations.

The Yamaha PX8 is highly regarded for its balance of high output power, advanced onboard DSP, ease of use, and reliability, making it a strong contender for demanding audio environments.