Crestron MP-AMP40-70/100V How to use

Crestron MP-AMP40-70/100V
Media Presentation Audio Amplifier
Operations & Installation Guide

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Regulatory Compliance
This product is Listed to applicable UL Standards and requirements by Underwriters Laboratories Inc.
This product conforms to UL STD 962A; certified to CSA STD C22.2 No. 21.
As of the date of manufacture, the MP-AMP40-70V and MP-AMP40-100V have been tested and found to
comply with specifications for CE marking and standards per EMC and Radiocommunications Compliance
Labelling.
Federal Communications Commission (FCC) Compliance Statement
CAUTION: Changes or modifications not expressly approved by the manufacturer responsible for
compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
Reorient or relocate the receiving antenna
Increase the separation between the equipment and receiver
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected
Consult the dealer or an experienced radio/TV technician for help
Industry Canada (IC) Compliance Statement
The specific patents that cover Crestron products are listed at patents.crestron.com
Crestron and the Crestron logo are either trademarks or registered trademarks of Crestron Electronics, Inc. in the United States and/or other
countries. ENERGY STAR is either a trademark or registered trademark of the United States Environmental Protection Agency in the United
States and/or other countries. UL and the UL logo are either trademarks or registered trademarks of Underwriters Laboratories, Inc. in the
United States and/or other countries. Other trademarks, registered trademarks, and trade names may be used in this document to refer to either
the entities claiming the marks and names or their products. Crestron disclaims any proprietary interest in the marks and names of others.
©2012 Crestron Electronics, Inc.

Crestron MP-AMP40-70/100V Media Presentation Audio Amplifier
Operations & Installation Guide – DOC. 7354A Contents i
Contents
Media Presentation Audio Amplifier: MP-AMP40-70/100V 1
Introduction ...............................................................................................................................1
Features and Functions................................................................................................1
Applications.................................................................................................................2
Specifications ..............................................................................................................3
Physical Description....................................................................................................4
Setup .......................................................................................................................................... 7
Installation................................................................................................................... 7
Hardware Hookup ....................................................................................................... 7
Problem Solving ........................................................................................................................8
Troubleshooting........................................................................................................... 8
Further Inquiries .......................................................................................................... 8
Future Updates ............................................................................................................ 8
Return and Warranty Policies ....................................................................................................9
Merchandise Returns / Repair Service ........................................................................ 9
Crestron Limited Warranty..........................................................................................9

Crestron MP-AMP40-70/100V Media Presentation Audio Amplifier
Media Presentation Audio
Amplifier: MP-AMP40-70/100V
Introduction
The Crestron®MP-AMP40 series offers a choice of 70 V or 100 V audio amplifiers,
each designed to provide a convenient, low-cost amplifier solution for a variety of
applications. These amplifiers are ENERGY STAR®qualified to enable
organizations to fulfill their green initiatives without compromising on audio
performance.1Each model is equipped for shelf or surface-mounting to enable
installation virtually anywhere without requiring an equipment rack. Each model
meets the requirements of UL 2043 for installation in an environmental air-handling
(plenum) space, such as above a suspended ceiling.2
Features and Functions
Compact single-channel power amplifier
ENERGY STAR qualified1
40 watts at 70 or 100 volts (mono)
Transformer isolated output
High-efficiency Class D topology
Energy saving design reduces power consumption when idle
Convection cooled for noiseless operation
Simple volume, bass, and treble adjustments
Electronic short-circuit and overload protection
Detachable terminal block speaker connection
Balanced line input via detachable terminal block
Unbalanced RCA line input, 3-foot (~0.9 meter) cable included
Built-in stereo to mono summing
Includes surface mounting brackets
UL 2043 compliant for installation within a plenum-rated suspended
ceiling2
1. The MP-AMP40-70V and MP-AMP40-100V are ENERGY STAR qualified only when using the
included power pack. Power pack meets ENERGY STAR Version 2.0 Efficiency Level V standards
in compliance with EISA Section 301 (US), CECP Tier 2 (China), MEPS Tier 2 (Australia), and CoC
(EU).
2. The MP-AMP40-70V and MP-AMP40-100V are tested by an NRTL (Nationally Recognized Testing
Laboratory) and comply to ANSI/UL2043 (Fire Test For Products Installed in Air-Handling Spaces).
Full compliance requires plenum rated cables such as Crestron CBL-KAUDIO-RCAM2-L-P-50 audio
cable, CBL-SPK-P-35 speaker cable, and CBL-PWR-EXT24V-P-6 DC power extension cable. Please
note that the included power pack is not ANSI/UL2043 compliant, and thus cannot be installed in an
air-handling space unless enclosed in a suitable plenum-rated enclosure.
Operations & Installation Guide – DOC. 7354A Media Presentation Audio Amplifier: MP-AMP40-70/100V 1

Media Presentation Audio Amplifier Crestron MP-AMP40-70/100V
Two models are offered. The MP-AMP40-70V has a 70 volt output, and the
MP-AMP40-100V has a 100 volt output. High-efficiency Class D circuitry delivers
40 watts to drive a distributed speaker system in a meeting room, classroom, or any
other space. The output is transformer isolated to handle long and complex wire runs.
Refined, reliable operation is ensured thanks to pop-free turn-on circuitry and
electronic short-circuit and overload protection. An energy-saving design achieves
optimum efficiency under load, and the amplifier powers down automatically when
no input signal is detected for more than 5 minutes, reducing overall power
consumption and heat as part of a green system design. The amplifier quickly powers
back on the instant an input signal is detected. Its extruded aluminum housing is both
attractive and effective at dissipating heat, affording a silent running design without
cooling fans.
Installation and setup is simple. A detachable output connector facilitates the
termination of speaker wiring up to 12 gauge. Balanced and unbalanced inputs
accommodate either a mono or stereo line-level source*, allowing for direct
connection to the output of a video projector or display, audio processor, mixer, or
AV switcher. Rotary controls provide for adjusting the overall output volume, as
well as bass and treble.
Applications
The following diagram shows an MP-AMP40-70/100V in a typical application.
* Stereo input is internally summed to mono.
2 Media Presentation Audio Amplifier: MP-AMP40-70/100V Operations & Installation Guide – DOC. 7354A

Crestron MP-AMP40-70/100V Media Presentation Audio Amplifier
Specifications
Specifications for the Media Presentation Audio Amplifier are listed in the following
table.
Media Presentation Audio Amplifier Specifications
SPECIFICATION DETAILS
Audio
Input Volume Range -60 dB to +15 dB
Bass Gain Range:±10 dB @ 100 Hz
Treble Gain Range:±12 dB @ 10 kHz
Frequency Response 80 Hz to 20 kHz ±2.5 dB
S/N Ratio 75 dB @ 80 Hz to 20 kHz A-weighted
THD+N 0.5% @ 1 kHz
Output Power
(MP-AMP40-70V)
40 watts at 70 volts (Transformer isolated)
Output Power
(MP-AMP40-100V)
40 watts at 100 volts (Transformer isolated)
Amplifier Protection Electronic short-circuit and overload
protection
Input Detection Threshold <30 mVrms @ 1 kHz
Power Requirements
Power Pack 2.0 amps @ 24 volts dc
100-240 volts ac, 50/60 Hz power pack,
included1
Power Consumption 14 watts @ 1/8 output power
6.2 watts @ Idle
750 mW standby
Environmental
Temperature 41° to 122° F (5° to 50° C)
Humidity 10% to 90% RH (non-condensing)
Heat Dissipation 26 Btu/h @ 1/8 output power
Enclosure
Chassis Aluminum with polycarbonate label overlay,
vented rear, meets the requirements of UL
2043 for installation in an environmental
air-handling (plenum) space2
Faceplate Plastic with polycarbonate label overlay
Mounting Freestanding or surface mount (adhesive
feet and mounting brackets included)
Dimensions
Height 2.38 in (61 mm) with feet, 2.45 in (62 mm)
with bracket
Width 8.12 in (207 mm), 9.40 (239 mm) with
bracket
Depth 5.87 in (149 mm)
Weight 3.4 lb (1.6 kg)
(Continued on following page)
Operations & Installation Guide – DOC. 7354A Media Presentation Audio Amplifier: MP-AMP40-70/100V 3

Media Presentation Audio Amplifier Crestron MP-AMP40-70/100V
Media Presentation Audio Amplifier Specifications (Continued)
SPECIFICATION DETAILS
Available Accessories
CBL-RCA2 Crestron Certified RCA Stereo Audio
Interface Cable
CBL-KAUDIO-RCAM2-L-P-50 RCA to Flying Lead Stereo Audio Cable,
Plenum, 50 ft (~15 m)
CBL-PWR-EXT24V-P-6 DC Power Extension Cable, Plenum,
6 ft (~2 m)
MP-WP Series Media Presentation Wall Plates
MPI-WP Series Media Presentation Wall Plates –
International Version
1 The MP-AMP40-70V and MP-AMP40-100V are ENERGY STAR qualified only when using the
included power pack. Power pack meets ENERGY STAR Version 2.0 Efficiency Level V standards
in compliance with EISA Section 301 (US), CECP Tier 2 (China), MEPS Tier 2 (Australia), and CoC
(EU).
2The MP-AMP40-70V and MP-AMP40-100V are tested by an NRTL (Nationally Recognized Testing
Laboratory) and comply to ANSI/UL2043 (Fire Test For Products Installed in Air-Handling Spaces).
Full compliance requires plenum rated cables such as Crestron CBL-KAUDIO-RCAM2-L-P-50 audio
cable, CBL-SPK-P-35 speaker cable, and CBL-PWR-EXT24V-P-6 DC power extension cable. Please
note that the included power pack is not ANSI/UL2043 compliant, and thus cannot be installed in an
air-handling space unless enclosed in a suitable plenum-rated enclosure.
Physical Description
This section provides information on the connections, controls and indicators
available on the MP-AMP40-70/100V.
MP-AMP40-70 Front View
MP-AMP40-70 Rear View
4 Media Presentation Audio Amplifier: MP-AMP40-70/100V Operations & Installation Guide – DOC. 7354A