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Page 40 Installation and Operating Guide English
Installation and Operating Guide pro.Bose.com
Technical Specifications - Common to all PowerMatch
®
models
Audio Performance Specifications
1
Frequency Response 20 Hz - 20 kHz (@ 1 W and +/- 0.5 dB)
Signal-to-Noise Ratio, Analog Input > 102 dB (PM8500 and PM4500), > 99 dB (PM8250 and PM4250), 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 (PM8500 and PM8250), 4 x 4 matrix (PM4500 and PM4250)
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
Indicators and Controls
LED Status Indicators Signal, limit, clip, fault
User Interface Controls Mute, input sensitivity, output attenuation, EQ on/off, preset select. 240 x 64 LCD.
Additional controls available w/ ControlSpace
®
Designer™ software
General
Setup and Configuration Software ControlSpace Designer software V3.2 or greater
PC Interface Connection USB (Network version adds Ethernet RJ45)
Fault Notification Output NC/NO Relay Contact (1 A, 30 VDC), 3-pin Phoenix Contact
®
connector (orange color; part # 1976010)
(1) Measured at +24 dBu sensitivity unless otherwise specified.
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