Bose Pro PowerShare P4300+ Adaptable Power Amplifier – 4x300W Channels, Smart Power Sharing, Dante-Enabled, DSP Processing for Installed Sound Systems

 

 

Bose PowerShare P4300+ Adaptable Power Amplifier – Flexible Power for Commercial Audio Systems

The Bose PowerShare P4300+ adaptable power amplifier is a cutting-edge 4-channel professional amplifier engineered for maximum flexibility, high fidelity, and seamless integration into modern commercial and installed audio systems. Designed to accommodate a wide range of applications—from retail and hospitality to houses of worship and educational institutions—the PowerShare P4300+ redefines amplifier versatility by allowing power to be dynamically distributed across channels.

With 300 watts per channel (totaling 1200 watts) and Bose’s exclusive PowerShare technology, the P4300+ gives audio professionals the power to tailor amplification precisely to the needs of each loudspeaker zone, without being limited by fixed channel assignments or power restrictions. Built-in DSP, Dante® network audio, and control compatibility with ControlSpace software make this amplifier an ideal choice for sophisticated, scalable audio installations.

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Adaptive Power Distribution with PowerShare Technology

What makes the Bose P4300+ truly revolutionary is PowerShare technology—a patented amplifier architecture that allows the total 1200 watts to be allocated asymmetrically across its four output channels. This means you can assign more power to channels that require it most, and less to those that don’t, up to the amplifier’s total power rating.

For example, one output can drive a large full-range loudspeaker at 600 watts, while others power smaller ceiling speakers at 100 or 200 watts. The ability to allocate power where it’s needed dramatically simplifies system design and reduces the need to purchase different amplifiers for different speaker types or output levels.

Key PowerShare Benefits:

• Maximizes amplifier efficiency and value

• Reduces inventory and SKU count for integrators

• Supports flexible speaker combinations in multi-zone installations

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4 Independent Output Channels with Flexible Loading

Each output of the Bose P4300+ can support both low-impedance (4–8 ohms) and high-impedance (70V/100V) loudspeaker loads without the need for bridging or special configuration. This allows system designers to combine different speaker types on the same amplifier without compromising performance or requiring extra gear.

Outputs are fully independent, so you can mix and match distributed ceiling speakers, surface-mounted speakers, or larger full-range cabinets—all from the same amplifier, without complex planning.

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Onboard DSP with ControlSpace Integration

The P4300+ features a fully integrated DSP engine, enabling real-time signal processing such as equalization, delay, limiting, and loudspeaker tuning—all configurable through Bose ControlSpace Designer software. This built-in processing eliminates the need for external DSP units in many installations and reduces overall system complexity and cost.

The DSP also includes speaker EQ presets optimized for use with Bose Professional loudspeakers (like the FreeSpace, DesignMax, and EdgeMax series), ensuring exceptional audio quality with minimal tuning effort.

DSP Features:

• Input/output EQ and filters

• Loudspeaker EQ

• Peak and RMS limiting

• Signal delay

• Gain structure management

• Remote logic control

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Dante® and Analog Audio Inputs

To meet modern system integration needs, the PowerShare P4300+ includes both Dante digital audio networking and analog inputs, allowing flexible routing and compatibility with a wide range of systems.

• 4 analog balanced line inputs (Euroblock)

• 4 Dante digital inputs (RJ-45, Ethernet)

You can mix and route any combination of Dante and analog signals to the amplifier outputs using ControlSpace software, supporting seamless integration with digital audio networks or hybrid analog/digital systems.

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Remote Monitoring and Control

For large, multi-zone installations, centralized control is essential. The Bose P4300+ is fully compatible with Bose ControlSpace systems, allowing for remote monitoring, configuration, and control over network. Additionally, GPIO ports and RS-232 connections offer integration with third-party control systems such as Crestron®, AMX®, or Q-SYS™.

With remote access and real-time diagnostics, technicians and facility managers can monitor amplifier status, mute or adjust outputs, and diagnose problems without being physically present—saving valuable time and reducing service costs.

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Efficient Class-D Design with Low Thermal Footprint

The amplifier’s Class-D topology ensures high energy efficiency, low heat output, and silent operation—perfect for spaces where reliability and discreet performance matter. The fanless design further contributes to quiet operation, making the P4300+ suitable for boardrooms, sanctuaries, lecture halls, and recording environments.

The amplifier also includes fault monitoring and protection circuitry, including safeguards against:

• Short circuits

• Overheating

• Overload

• Signal clipping

• DC faults

These intelligent protections help ensure long-term durability and uninterrupted performance in mission-critical environments.

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Compact and Installer-Friendly Design

Despite its power and flexibility, the PowerShare P4300+ fits into a 1RU rack space, making it a compact yet powerful addition to any equipment rack. Weighing only 7.4 kg (16.3 lbs), it’s easy to handle during installation, and its intuitive I/O layout simplifies cable management in both fixed and modular systems.

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Ideal Applications

The Bose PowerShare P4300+ is optimized for a wide variety of installed audio environments, including:

• Houses of Worship – Flexible amplification for sanctuary mains, cry rooms, and lobby zones

• Corporate Offices and Boardrooms – High-quality distributed audio for background music, paging, and AV conferencing

• Hospitality and Hotels – Multi-zone support for lobbies, restaurants, lounges, ballrooms, and outdoor areas

• Retail Stores and Malls – Music and paging across multiple departments or locations with one amplifier

• Education and Campuses – Audio coverage for classrooms, auditoriums, common areas, and gymnasiums

• Entertainment Venues and Museums – Reliable, scalable power for AV exhibits, live events, and multi-room installations

Whether you’re outfitting a single venue or a multi-zone facility, the P4300+ simplifies system architecture while delivering premium, intelligible sound with Bose signature quality.

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Technical Specifications

• Model Name: Bose PowerShare P4300+

• Amplifier Type: Class-D

• Total Power Output: 1200W shared across 4 channels

• Output Power (Per Channel): Up to 300W, asymmetrically assignable

• Channel Count: 4

• Load Types Supported:

  • 4–8 ohm low-impedance

  • 70V/100V constant voltage

• Inputs:

  • 4 analog inputs (Euroblock)

  • 4 Dante inputs (RJ-45)

• Outputs: 4 loudspeaker outputs (Euroblock)

• DSP Features:

  • EQ, delay, limiting, crossover, Bose loudspeaker presets

  • Configurable via ControlSpace Designer software

• Control Interfaces:

  • Ethernet for ControlSpace

  • RS-232 serial control

  • GPIO (remote control integration)

• Cooling: Convection cooled (fanless)

• Dimensions (H x W x D): 44 mm x 483 mm x 392 mm (1U)

• Weight: 7.4 kg (16.3 lbs)

• Certifications: UL, CE, RoHS, ENERGY STAR® qualified

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Why Choose the Bose PowerShare P4300+?

The Bose PowerShare P4300+ amplifier offers audio professionals and system designers a flexible, future-ready solution that adapts to a wide variety of commercial sound reinforcement needs. With its unique ability to allocate power dynamically across outputs, built-in DSP, Dante integration, and ControlSpace compatibility, the P4300+ streamlines system design, reduces hardware requirements, and delivers exceptional sound with long-term reliability.

Whether you’re building a multi-zone business audio system or upgrading existing installations to networked solutions, the Bose P4300+ provides a scalable, intelligent, and powerful backbone for your commercial sound applications.

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