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Bose PM4500N
4-Channel 2000-Watt Power Amplifier with Networking

OUR PART #:  PM4500N

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The Bose® PowerMatch PM4500 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.

Applications:

  • Auditoriums
  • Performing arts venues
  • Theaters
  • Houses of worship
  • Arenas
  • Hospitality venues

Bose PM4500N Features:

  • 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.

Bose PM4500N Specifications:

  • THD for Power Rating, Typical:
    • 2 Ohms: <0.1%
    • 4 Ohms:<0.1%
    • 8 Ohms: <0.1%
    • 70V: 1%
    • 100V: 1%
  • Mono Mode:
    • 2/4/8/ Ohms: 500 Watts
  • V-Bridge Mode
    • 4 Ohms: 1000 Watts
    • 8 Ohms: 1000 Watts
    • 70V: 800 Watts
    • 100V: 1000 Watts
  • I-Share Mode
    • 2 Ohms: 1000 Watts
  • Quad Mode:
    • 4 Ohms: 2000 Watts
    • 70V: 1600 Watts
    • 100V: 2000 Watts
  • Maximum Rated Power: 2000 Watts (500 Watts x 4 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 Specifications

  • Frequency Response: 20 Hz - 20 kHz (at 1 W and +/- 0.5 dB)
  • Signal-to-Noise Ratio, Analog Input: > 902 dBA (1 dB below rated power, A-weighted)
  • THD: < 0.4 % (at 1 W, 20 Hz to 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, upto 48 dB/octave
  • Loudspeaker EQ: 9-band PEQ (+/- 20 dB), shelving, high pass, low pass
  • Array EQ Filters: 2-band RoomMatch® array EQ
  • Maximum Output Delay: 3 s
  • Output Limiter: Peak and RMS voltage

Audio Inputs

  • Input Channels: 4 (balanced line level)
  • Input Impedance: > 100 kOhms N/A
  • 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)

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. 240 x 64 LCD. Additional controls available w/ ControlSpace® Designer™ software

Electrical Specifications

  • Mains Voltage 100-240 V (50/60 Hz)
  • 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)
  • Output Stage Topology Class-D
  • 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 mm x 483 mm x 525 mm) - 2 rackspace
  • Net Weight: 24.4 lb (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 torear airflow

General

  • Setup and Configuration Software: ControlSpace® Designer™ software V3.2 or greater
  • PC Interface Connection: USB and Ethernet RJ45
  • Fault Notification Output: NC/NO Relay Contact (1 A, 30 VDC), 3-pin PhoenixContact® connector (orange color; part # 1976010)
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