Bose PowerMatch PM8250 Service Manual

4
SPECIFICATIONS
Power Rating (20-20k Hz) 2 Ω 4 Ω 8 Ω 70 V 100 V
THD For Power Rating <0.1% THD 1% THD
Mono Mode: 8 or 4 channels (per channel) 500 W 500 W 300 W not rated not rated
Bridge Mode: 4 or 2 channels (per channel) not rated 1000 W 1000 W 800 W 1000 W
Current Share Mode: 4 or 2 channels (per
channel
)
1000 W not rated not rated not rated not rated
Quad Bridge Mode: 2 channels (per
channel
)
not rated 2000 W not rated 1600 W 2000 W
Maximum Rated Power, Total All Channels 4000 W
Peak Output Voltage (mono/bridge/quad
modes)
71 / 142 / 142 V
Voltage Gain (mono/bridge/current
share/quad modes)
33 / 36 / 33 / 36 dB
Audio Performance Specifications
Frequency Response (@1W and + / -0.5 dB) 20 Hz -20 kHz
Signal-to-Noise Ratio (below rated power) >104 dBA
THD @ 1W, 20 Hz to 20k Hz <0.1%
Intermod Distortion - SMPTE (60 Hz, 7 kHz) <0.4%
Channel Se
p
eration
(
crosstalk
)
at 1 kHz > 75 dB
Dam
p
in
g
Factor
(
10 -100 Hz
)
, 8 ohms >1000
Inputs -Analog
Input Channels, Analog 4 or 8 (balanced line level)
Input Impedance 20 kΩ
Input Sensitivity 0 to 24 dBU, selectable in 1 dB steps
Maximum Input Level +24 dBu
Connectors, Analog Inputs 3-pin Phoenix
®
(green color; part # 1776168)
Inputs -Digital (Optional Card)
Di
g
ital In
p
ut Channels 8
(
ESPLink or Cobranet
)
Connectors, Di
g
ital In
p
uts Toslink
(
ESPLink
)
or Ethernet RJ45
(
Cobranet
)
Outputs
Output Channels 2 to 8 configurable (model dependent)
Connectors, Outputs (accepts 10 to 22
AWG)
8-pin Phoenix® (part # 1718436)
Connectors, Fault-Notification Output 3-pin Phoenix (orange color; part # 1976010)
Integrated Loudspeaker DSP (per
channel)
A/D and D/A conversion 24-bit / 48 kHz
Total Latency (Analog in -Amp out) 0.8 mSec
Input to Output Signal Routing 8 x 8 matrix
Louds
p
eaker Presets Bose
®
Professional
Input EQ 5-band PEQ, +/-10 dB, or shelving
Crossover Filters
Butterworth, Bessel, or Linkwitz-Riley, up to 48
dB/octave
Output EQ 7-band PEQ, +/-10 dB, or shelving
Array EQ Filters 2-band RoomMatch array EQ
Maximum Output Time Delay 2 sec
Output Limiter Peak and RMS voltage


Bose PowerMatch PM8250 Specifications

General

Damping factor	1000
Amplifier class	D
Audio output channels	- channels
Peak power per channel	- W
Signal-to-Noise Ratio (SNR)	99 dB
Total Harmonic Distortion (THD)	0.4 %
Bridge-mode power output per channel (4 Ohm)	500 W
Purpose	Performance/stage
Equalizer	Yes
Product color	Black
Connectivity technology	Wired
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Speakers connectivity type	-
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 90 %

Weight and Dimensions

Depth	525 mm
Width	483 mm
Height	88 mm
Weight	11100 g