Bose PowerMatch PM8250 8-Channel Configurable Power Amplifier 2000 Watts with USB Port

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Bose PowerMatch PM8250 8-Channel Configurable Power Amplifier 2000 Watts with USB Port (Discontinued)

Description

Details

Bose PowerMatch PM8250 8-Channel Power Amplifier 8 x 250 Watts at 4 Ohms

The Bose® PowerMatch PM8250 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.

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.

Features

Features

QuadBridge Technology
ControlSpace Designer software
Auto-Standby/Auto-Wake function
Dual voltage and current feedback loop
PeakBank power supply
Fast-tracking power factor correction
Class-D PowerMatch amplifier

Specification

Power Rating
2 Ω
THD for Power Rating, Typical	< 0.1 %
Mono Mode	250W
V-Bridge Mode	250W²
I-Share Mode	500W
Quad Mode	1000W²
4 Ω
THD for Power Rating, Typical	< 0.1 %
Mono Mode	250W
V-Bridge Mode	500W
I-Share Mode	250W²
Quad Mode	1000W
8 Ω
THD for Power Rating, Typical	< 0.1 %
Mono Mode	250W
V-Bridge Mode	500W
I-Share Mode	150W²
Quad Mode	500W²
70 V
THD for Power Rating, Typical	1 %
V-Bridge Mode	400W
Quad Mode	800W
100 V
THD for Power Rating, Typical	1 %
V-Bridge Mode	500W
Quad Mode	1000W
Maximum Rated Power	2000W (250W x 8 channels at 4 ohms)
Peak Output Voltage	71 / 142 V (Mono / V-Bridge, I-Share, and Quad modes)
Voltage Gain	30 / 33 / 30 / 33 dB (Mono / V-Bridge / I-Share / Quad modes)
Audio Performance
Frequency Response	20 Hz - 20 kHz (at 1 W and +/- 0.5 dB)
Signal-to-Noise Ratio, Analog Input	>99 dBA (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
Array EQ Filters	2-band RoomMatch® array EQ
Maximum Output Delay	3 s
Output Limiter	Peak and RMS voltage
Audio Inputs
Analog
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)
Digital (Optional Card)
Input Channels	8
Sensitivity	Digital: 0, -12, -20, -24 dBFS, selectable
Connectors, Input	Card Dependent
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 attenuation, EQ on/off, preset select. 240 x 64 LCD.
User Interface Controls	Additional controls available w/ ControlSpace® Designer™ software
Electrical
Mains Voltage	100-240 V (50/60 Hz)
Mains Connector	IEC 60320-C14 (Inlet)
Minimum AC Line Voltage	80 V (reduced output power)
Maximum Inrush Current	15.4 A (230 VAC, 50 Hz)
Maximum RMS Current Draw	8 A
Efficiency, 1/3 Rated Power	> 68 % (pink noise input signal)
Output Stage Topology	Class-D
Cooling System	Microprocessor-controlled, variable-speed fans, front to rear airflow
Overload Protection	High temperature, DC, HF, short, voltage limiter, current limiter.
Operating Temperature	32 °F - 104 °F (0 °C - 40 °C)
Overload Protection	Inrush current, mains circuit breaker protection
Setup and Configuration Software	ControlSpace® Designer™ software V3.2 or greater
Physical
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
Mounting Depth	21" (533 mm)
Dimensions (H x W x D)	3.5" (88 mm) x 19" (483 mm) x 20.7" (525 mm)
Net Weight	28.3 lbs (12.8 kg)
Shipping Weight	34 lbs (15.4 kg)

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