Bose PowerMatch PM8250N Configurable Power Amplifier

The Bose® PowerMatch PM8250N configurable professional power amplifier provides concert-quality sound with a high level of scalability and configurability for fixed installation sound reinforcement systems. Ethernet-based networking enables configuration, control and monitoring, and an expansion slot supports input from optional digital audio accessory cards. The front-panel USB connection allows for direct configuration PC connection to a single amplifier. PowerMatch amplifiers utilize numerous Bose technologies to deliver an unprecedented combination of performance, efficiency and ease of installation—all in a reliable, proprietary design.

Bose PowerMatch PM8250N Features

• QuadBridge™ technology allows each 4-channel loudspeaker block to be configured as Mono, V-Bridge, I-Share or Quad modes
• Bose® ControlSpace® Designer™ software
• Auto-Standby/Auto-Wake function saves power
• Dual voltage and current feedback loop design continuously monitors and controls both the current and voltage delivered to the loudspeaker load
• PeakBank™ 4-quadrant power supply enables higher power density while allowing the re-use of energy from reactive loads
• Fast-tracking PFC efficiently manages current drawn from AC mains, allowing the amplifier to drive loudspeakers to maximum output longer without power fluctuation

• PowerMatch PM8250N configurable power amplifier1
• Detachable IEC power cord1

• Power Rating
  • Max. Rated Power: 2000W (250W x 8 channels at 4Ω)
  • Peak Output Voltage: 71 / 142 V (Mono / V-Bridge, I-Share, and Quad modes)
  • Voltage Gain: 33 / 39 / 33 / 39 dB (Mono / V-Bridge / I-Share / Quad modes)
• Audio Performance
  • Frequency Response: 20Hz - 20kHz (at 1 W and +/- 0.5 dB)
  • Signal to Noise Ratio, Analog Input: >99 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: 48kHz / 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
  • Max. Output Delay: 3 s
  • Output Limiter: peak and RMS voltage
• Audio Inputs
  • Analog
  • Input Channels: 8 (balanced, line level)
  • Input Impedance: > 100kΩ
  • Sensitivity: 0, +4, +12, +24 dBu, selectable
  • Max. Input Level: +24 dBu (at 24 dBu sensitivity setting)
  • Connectors, Input: 3-pin Phoenix Contact® (green color; part # 1776168)
• Audio Outputs
  • Outputs: 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
  • Mains Voltage: 100-240 V (50/60 Hz)
  • Mains Circuit Recommendation: 15A (120 V) or 10A (230 V)
  • Mains Connector: IEC 60320-C14 (Inlet)
  • Min. AC Line Voltage: 80V (reduced output power)
  • Max. Inrush Current: 15.4 A (230 VAC, 50 Hz)
  • Max. RMS Current Draw: 8A
  • Efficiency, 1/3 Rated Power: > 68 % (pink noise input signal)
  • Output Stage Topology: Class D
  • Overload Temperature: high temperature, DC, HF, short, voltage limiter, current limiter, inrush current, mains circuit breaker protection
• Setup and Configuration SoftwareControlSpace Designer software V3.2 or greater
• PC Interface ConnectionUSB (type B), Ethernet (RJ-45, 100Mb)
• Fault Notification OutputNC/NO Relay Contact (1 A, 30 VDC), 3-pin Phoenix Contact connector (orange color; part # 1976010)
• Cooling Systemmicroprocessor-controlled, variable-speed fans, front to rear airflow
• Operating Temperature32°F to 104°F (0°C to 40°C)
• Mounting Depth21"
• Dimensions (HxWxD)3.5" x 19" x 20.7"
• Weight28.3 pounds