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
