Bose PowerMatch PM8500N Configurable Power Amplifier (with Networking)


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  • The Bose® PowerMatch PM8500 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.

    The PM8500N adds Ethernet connectivity for network control and monitoring of multiple “N” version amplifiers.


    • QuadBridge™ Technology – Allows each 4-channel loudspeaker block to be configured as Mono, V-Bridge, I-Share or Quad modes, allowing the total available power of the amplifier block to be allocated to one or more output channels. The amplifier is capable of driving both low impedance and 70/100V loudspeaker loads directly.
    • 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.


    • Auditoriums
    • Performing arts venues
    • Theaters
    • Houses of worship
    • Arenas
    • Hospitality venues
  • Power Rating  
    2 Ω Mono Mode: 450 W
    V-Bridge Mode: 450 W
    I-Share Mode: 1000 W
    Quad Mode: 1000 W
    4 Ω Mono Mode: 500 W
    V-Bridge Mode: 1000 W
    I-Share Mode: 500 W
    Quad Mode: 2000 W
    8 Ω Mono Mode: 300 W
    V-Bridge Mode: 1000 W
    I-Share Mode: 300 W
    Quad Mode: 1000 W
    70 V Mono Mode: N/A - Requires tapping
    V-Bridge Mode: 800 W
    I-Share Mode: Not available
    Quad Mode: 1600 W
    100 V Mono Mode: N/A - Requires tapping
    V-Bridge Mode: 1000 W
    I-Share Mode: Not available
    Quad Mode: 2000 W
    THD for Power Rating
    2 Ω: < 0.1 %
    4 Ω: < 0.1 %
    8 Ω: < 0.1 %
    70 V: 1 %
    100 V: 1 %
    Maximum Rated Power 4000 W (500 W x 8 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 > 102 dB (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 8 x 8 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  
    Input Channels 8 balanced line level
    Input Impedance > 100 kΩ
    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 2 to 8 (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 Circuit Recommendation 20A (120 V) or 16A (230 V)
    Mains Connector IEC 60320-C20 (Inlet)
    Minimum AC Line Voltage 80 V (reduced output power)
    Maximum Inrush Current 15.4 A (230 VAC, 50 Hz)
    Maximum RMS Current Draw 15 A
    Efficiency, 1/3 Rated Power > 75 % (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
    Dimensions 3.5" H x 19" W x 20.7" D (88 mm x 483 mm x 525 mm) - 2 rack space
    Net Weight 28.4 lb (12.9 kg)
    Shipping Weight 34.5 lb (15.7 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 airflow
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