Bose PM4250 User Manual

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PowerMatch® PM4250 / PM4250N
configurable power amplifier
TECHNICAL DATA SHEET
Bose Professional Systems Division
1
OF 7
pro.Bose.com
Product Overview
The Bose® PowerMatch PM4250 configurable professional
power amplifier provides concert-quality sound with a high
level of scalability and configurability. The PM4250 offers
multiple channel and power options, an integrated audio
DSP, front panel interface and USB connection. Ethernet-
equipped versions enable network configuration, control and
monitoring. An expansion slot supports inputs from optional
digital 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. Available
in two versions, the PM4250 provides USB connection for
single-unit setup and control using Bose ControlSpace® V3.0
or higher software. The PM4250N adds Ethernet connectivity
for network control and monitoring of multiple “N” version
amplifiers.
Applications
Designed for a wide range of applications, including:
Houses of worship
Retail stores
Atriums and malls
Restaurants
Auxiliary zones
Conference centers
Hospitality venues
Key Features
QuadBridge™ Technology – Allows the 4 available channels
to be configured as Mono, V-Bridge, I-Share or Quad mode,
allowing the total available power of the amplifier 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.
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Summary of Contents

Page 1 - TECHNICAL DATA SHEET

PowerMatch® PM4250 / PM4250Nconfigurable power amplifierTECHNICAL DATA SHEETBose Professional Systems Division1OF 7pro.Bose.comProduct OverviewThe Bos

Page 2

PowerMatch® PM4250 / PM4250Nconfigurable power amplifierTECHNICAL DATA SHEETBose Professional Systems Division2OF 7pro.Bose.comTechnical Specification

Page 3

PowerMatch® PM4250 / PM4250Nconfigurable power amplifierTECHNICAL DATA SHEETBose Professional Systems Division3OF 7pro.Bose.comGeneralSetup and Config

Page 4

PowerMatch® PM4250 / PM4250Nconfigurable power amplifierTECHNICAL DATA SHEETBose Professional Systems Division4OF 7pro.Bose.com1. LED Indicators - Fau

Page 5

PowerMatch® PM4250 / PM4250Nconfigurable power amplifierTECHNICAL DATA SHEETBose Professional Systems Division5OF 7pro.Bose.comMechanical DiagramsBack

Page 6

PowerMatch® PM4250 / PM4250Nconfigurable power amplifierTECHNICAL DATA SHEETAll information subject to change without notice.® 2015 Bose CorporationAl

Page 7

PowerMatch® PM4250 / PM4250Nconfigurable power amplifierTECHNICAL DATA SHEETAll information subject to change without notice.® 2015 Bose CorporationAl

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