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CCI Solutions > Sound > Audio Amplifiers > Bose PM4500N

Bose PM4500N Power Amplifier

Configurable Professional Power Amplifier with Ethernet Connection for Networked Control

  • Description
  • Specifications
  • Reviews/Ratings

The Bose® PowerMatch PM4500N configurable professional power amplifier provides concert-quality sound with a high level of scalability and configurability for fixed installation sound reinforcement systems. Ethernet-equipped versions enable network configuration, control and monitoring, and an expansion slot supports input from optional digital audio accessory cards. PowerMatch amplifiers utilize numerous Bose technologies to deliver an unprecedented combination of performance, efficiency and ease of installation - all in a reliable, proprietary design.

QuadBridge™ Technology
Allows the 4 available channels to be configured as Mono, V-Bridge, I-Share or Quad mode, allowing the total available power of the amplifier to be allocated to one or more output channels. V-Bridge and Quad modes can drive either low impedance or 70/100V loads.

Bose® ControlSpace® Designer™ software
PowerMatch amplifiers can be fully configured using ControlSpace Designer software via the onboard front panel USB connection, or the rear panel Ethernet connection (network models only). Using ControlSpace Designer software you can access additional features including: Parametric EQ stages, load sweep of each output channel and auto standby. ControlSpace Designer software is also used to integrate network model PowerMatch amplifiers into larger control and monitoring systems comprised of Bose ESP processors and CC control centers.

Auto-Standby/Auto-Wake function
When enabled, this function automatically enters/exits Standby Mode, allowing the system to consume less power.

Dual voltage and current feedback loop
Proprietary design combines Class-D efficiency with a unique current and voltage feedback loop circuit that continuously monitors and controls both the current and voltage delivered to the loudspeaker load. Independent of power level and load impedance, the amplifier consistently delivers the widest possible dynamic range, frequency response and lowest possible distortion.

PeakBank™ power supply
Regenerative 4-quadrant power supply enables higher power density while allowing the re-use of energy from reactive loads that is normally wasted in conventional Class-D designs. This highly efficient amplifier design delivers sustainable and repeatable low frequency response.

Fast-tracking power factor correction (PFC)
Efficiently manages the current drawn from the AC mains, allowing the amplifier to drive loudspeakers to maximum output longer without power fluctuation. PFC provides superior transient response and functions at peak burst power much longer than conventional Class-D amplifier designs to satisfy the requirements of even the most demanding program material.

Specifications for the Bose PM4500N
  • Power Rating:
    • THD For Power Rating, Typical:
      • 2 Ohms: < 0.1%
      • 4 Ohms: < 0.1%
      • 8 Ohms: < 0.1%
      • 70V: 1%
      • 100V: 1%
    • Mono Mode:
      • 2 Ohms: 450 W
      • 4 Ohms: 500 W
      • 8 Ohms: 300 W
      • 70V: Limited use available, tap 70V loudspeakers 2x the desired power
      • 100V: Limited use available, tap 100V loudspeakers 4x the desired power
    • V-Bridge Mode:
      • 2 Ohms: 450 W
      • 4 Ohms: 1000 W
      • 8 Ohms: 1000 W
      • 70V: 800 W
      • 100V: 1000 W
    • I-Share Mode:
      • 2 Ohms: 1000 W
      • 4 Ohms: 500 W
      • 8 Ohms: 300 W
      • 70V: N/A
      • 100V: N/A
    • Quad Mode:
      • 2 Ohms: 1000 W
      • 4 Ohms: 2000 W
      • 8 Ohms: 1000 W
      • 70V: 1600 W
      • 100V: 2000 W
    • Maximum Rated Power: 2000 W (500 W x4 channels at 4 Ohms)
    • Peak Output Voltage: 71 / 142 V (Mono/V-Bridge, I-Share, and Quad modes)
    • Voltage Gain: 33 / 36 / 33 / 36 dB (Mono/V-Bridge/I-share/Quad modes)
  • Audio Performance:
    • Frequency Response: 20 Hz - 20 kHz (at 1 W and ±0.5 dB)
    • Signal-to-Noise Ratio, Analog Input: > 102 dB (1 dB below rated power, A-weighted)
    • THD: < 0.4% (at 1 W, 20 Hz - 20 kHz)
    • Intermod Distortion - SMPTE: < 0.4% (60 Hz, 7 kHz)
    • Channel Separation (Crosstalk): > 65 dB (adjacent channels, at 1 kHz)
    • Damping Factor: > 1000 (10 - 1000 Hz, 4 Ohms, at amplifier output)
  • Integrated DSP:
    • A/D and D/A Converters: 48 kHz / 24-bit
    • Total Latency (Analog In - Amp Out): < 0.95 ms
    • Input to Output Signal Routing: 4 x 4 matrix
    • Loudspeaker Presets: Bose Professional
    • Input EQ: 5-band PEQ (±20 dB), notch, shelving, high-pass, low-pass
    • Bandpass Filters (Crossover): Butterworth, Bessel, or Linkwitz-Riley, up to 48 dB/octave
    • Loudspeaker EQ: 9-band PEQ (±20 dB), shelving, high-pass, low-pass, 2-band RoomMatch array EQ
    • Maximum Output Delay: 3 s
    • Output Limiter: Peak and RMS voltage
  • Audio Inputs:
    • Analog:
      • Input Channels: 4 (balanced line level)
      • Input Impedance: > 100 kOhms
      • Sensitivity: 0, +4, +12, +24 dBu, selectable
      • Maximum Input Level: +24 dBu (at 24 dBu sensitivity setting)
      • Connectors, Input: 3-pin Phoenix Contact (green color, part # 1776168)
    • Digital (Optional Card)
      • Input Channels: 4, selectable range
      • Input Impedance: N/A
      • Sensitivity: Digital - 0, -12, -20, -24 dBFS, selectable
      • Maximum Input Level: N/A
      • Connectors, Input: Card dependent
  • Audio Outputs:
    • Output Channels: 1 to 4 (configurable)
    • Connectors, Output: 8-pin Phoenix Contact connectors (part # 1778120) supports 10-24 AWG wire
  • Indicators and Controls:
    • LED Status Indicators: Signal, Limit, Clip, Fault
    • User Interface Controls: Mute, input sensitivity, output configuration, output attenuation, EQ on/off, preset select, 240x64 LCD. Additional controls available w/ ControlSpace Designer software
  • Electrical Specifications:
    • Mains Voltage: 100 - 240 V (50/60 Hz)
    • Mains Circuit Recommendation: 15 A (120 V) or 10 A (230 V)
    • Mains Connector: IEC 60320-C14 (Inlet)
    • Minimum AC Line Voltage: 80 V (reduced output power)
    • Maximum Inrush Current: 15.4 A (230 VAC, 50 Hz)
    • Maximum RMS Current Draw: 8 A
    • Efficiency, 1/3 Rated Power: > 73% (pink noise input signal)
    • Overload Protection: High temperature, DC, HF, short, voltage limiter, current limiter, inrush current, mains circuit breaker protection
  • Physical:
    • Dimensions: 3.5" H x 19" W x 20.7" D (88 x 483 x 525 mm), 2 rack space
    • Net Weight: 24.4 lbs (11.1 kg)
    • Mounting Depth: 21" (533 mm)
    • Operating Temperature: 32°F - 104°F (0°C - 40°C)
    • Cooling System: Microprocessor-controlled, variable-speed fans, front to rear inflow
  • General:
    • Setup and Configuration Software: ControlSpace Designer software V3.2 or greater
    • PC Interface Connection: USB
    • Fault Notification Output: NC/NO relay contact (1 A, 30 VDC), 3-pin Phoenix Contact connector (orange color, part # 1976010)
Overall Rating:  N/A Number of Reviews: 0
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