PowerMatch PM4500N

Power Amplifier

Overview

Introducing the Bose Professional PowerMatch PM4500N configurable power amplifier, designed to deliver concert-quality sound with unparalleled scalability and configurability for fixed installation sound reinforcement systems. With Ethernet-based networking for configuration, control, and monitoring, and an expansion slot supporting optional digital audio accessory cards, this amplifier offers exceptional versatility.

Key Features

QuadBridge™ Technology: Configure the four available channels as Mono, V-Bridge, I-Share, or Quad mode, allowing flexible allocation of amplifier power to one or more output channels. Capable of driving both low impedance and 70/100V loudspeaker loads directly.

Bose Professional ControlSpace® Designer™ Software: Fully configure PowerMatch amplifiers using ControlSpace Designer software via USB or Ethernet connection. Access additional features such as Parametric EQ stages, load sweep of each output channel, and auto standby. Integrate network model PowerMatch amplifiers into larger control and monitoring systems comprising Bose Professional ESP processors and CC control centers.

Auto-Standby/Auto-Wake Function: Automatically enters/exits Standby Mode to reduce power consumption when enabled.

Dual Voltage and Current Feedback Loop: Proprietary design combines Class-D efficiency with continuous monitoring and control of current and voltage delivered to the loudspeaker load, ensuring consistent dynamic range, frequency response, and low distortion.

PeakBank™ Power Supply: Regenerative 4-quadrant power supply enables higher power density and sustainable low-frequency response by reusing energy from reactive loads, enhancing amplifier efficiency.

Fast-Tracking Power Factor Correction (PFC): Efficiently manages AC mains current, allowing the amplifier to drive loudspeakers to maximum output longer without power fluctuation. Provides superior transient response and functions at peak burst power longer than conventional Class-D amplifier designs.

Applications

  • Auditoriums

  • Performing arts venues

  • Theaters

  • Houses of worship

  • Arenas

  • Hospitality venues

Experience unparalleled performance and flexibility with the Bose Professional PowerMatch PM4500N, ideal for a wide range of professional audio applications.

Specs

  • • Channel Separation (Crosstalk): > 65 dB, adjacent channels at 1 kHz

    • Frequency Response: 20 Hz – 20 kHz (±0.5 dB) at 1 W

    • Gain, High-Impedance: 42 dB

    • Gain, Low-Impedance: 36 dB, Mono mode / 42 dB, V-Bridge mode / 36 dB, I-Share mode / 42 dB, Quad mode

    • Maximum Peak Power, Symmetrical: 1000 W

    • Number of Channels: 4

    • Power Class: Class D

    • Rated Power, Symmetrical: 450 W per channel at 2 Ω / 500 W per channel at 4 Ω / 300 W per channel at 8 Ω

    • SNR: > 102 dB (1 dB below rated power, A-weighted)

    • THD+N: < 0.4% at 1 W (20 Hz – 20 kHz)

  • • Channels: 4 balanced, line

    • Connectors: (4) 3-pin Euroblock

    • Input Impedance: > 100 kΩ

    • Maximum Input Level: 24 dBu at 24 dBu sensitivity

    • Sensitivity: 0 dBu, +4 dBu, +12 dBu, +24 dBu, selectable

  • • Channels: Expansion card-dependent

    • Connectors: Expansion card-dependent

  • • Channels:1–4, configurable

    • Connectors: (1) 8-pin Euroblock

  • • EMC: This Product meets the immunity requirements for the E2 class EN55103-2 directive.

  • Current Draw, Idle: 0.3 A (standby) or 1.0 A (awake) at 120 VAC, 60 Hz / 0.1 A (standby) or 0.5 A (awake) at 230 VAC, 50 Hz

    • Current Draw, Inrush: 15.4 A at 230 VAC, 50 Hz

    • Mains Connector: IEC 60320-C14 inlet

    • Mains Voltage: 100–240 VAC, 50/60 Hz

    • Protections: High temperature, DC, short circuit, high frequency, voltage limiter, current limiter, inrush current, mains circuit breaker

    • Power Consumption: 31 W standby (idle), 114 W awake (idle), 908 W maximum

  • • Computer Interface Connection: USB Type-B, RJ-45 (Ethernet, 100 Mbps)

    • Notification Outputs: (1) 3-pin Euroblock

    • Software Applications: ControlSpace Designer 3.2 or later (Windows)

  • • Controls, Front Panel: (1) navigation soft key, (5) menu soft keys, (1) scroll/select knob (rotary/push)

    • Controls, Rear Panel: POWER SWITCH – ON/OFF AC power switch

    • LED Status Indicators: (1) input signal LED, (1) input clip LED, (1) output limit LED, (1) fault LED

  • • A/D and D/A Conversion:48 kHz / 24-bit

    • Audio Latency:< 0.95 ms, analog input to analog output

    • Crossover Types:Butterworth, Bessel, or Linkwitz-Riley, up to 48 dB/octave

    • Delay:3 s

    • DSP-Enabled:Yes

    • Equalization:Input: 5-band parametric EQ (±20 dB), notch, shelving, high-pass, low-pass / array (ArenaMatch, RoomMatch) / band-pass crossover / loudspeaker: 9-band parametric EQ (±20 dB), notch, shelving

    • Limiters:Peak voltage, RMS voltage

    • Presets:Bose Professional loudspeaker presets

    • Processing Functions:Input EQ, array EQ, loudspeaker EQ, peak voltage limiter, RMS voltage limiter, delay, band-pass, matrix mixer

  • • Colors: Black

    • Cooling System: Microprocessor-controlled, variable-speed fans, front to rear airflow

    • Mounting/Rigging Provisions: Rack-mounting

    • Net Weight: 24.4 lb (11.1 kg)

    • Operating Temperature: 0 °C to 40 °C (32 °F to 104 °F)

    • Product Dimensions (H×W×D): 3.5 in × 19.0 in × 20.7 in (88 mm × 483 mm × 525 mm)

    • Rack Spaces: 2

    • Shipping Weight: 30.0 lb (13.6 kg)

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