AEM LSA400-001 User manual
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
INSTALLATION AND OPERATION MANUAL
REV 1.01 June 16, 2016
Anodyne Electronics Manufacturing Corp.
15-1925 Kirschner Road
Kelowna, BC, Canada.
V1Y 4N7
Telephone (250) 763-1088
Facsimile (250) 763-1089
Website: www.aem-corp.com
© 2016 Anodyne Electronics Manufacturing Corp. (AEM),
All Rights Reserved
ASM-LSA400
LSA400
-001
Loud Speaker Amplifier
LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
Installation and Operation Manual Page ii
ENG-FORM: 820-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
COPYRIGHT STATEMENT
© 2016 Anodyne Electronics Manufacturing Corp. (AEM), All Rights Reserved
This publication is the property of AEM and is protected by Canadian copyright laws.
No part of this document may be reproduced or transmitted in any form or by any
means including electronic, mechanical, photocopying, recording, or otherwise, without
the prior written permission of AEM.
LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
Installation and Operation Manual Page iii
ENG-FORM: 820-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
Prepared By:
Checked By:
Approved By:
The status of this installation and operation manual is controlled by the revision shown on the title page.
The status of each section is controlled by revision shown in the footer of each page. All revisions
affecting sections of this manual have been incorporated.
AEM MANUAL REVISIONS
Section
Revision Number
Revision Description
Date
1, 3
Rev: 1.01
RAS#599: Corrected Peak power output,
wording correction
Jun 16, 2016
All
Rev: 1.00
Initial release
Oct 7, 2014
Tony Pearson
Designer
Jun 16, 2016
Duane Stewart
Designer
June 27/16
Tom Betzelt
Product Support
Manager
June 28, 2016
Todd Blackstock
R&D Manager
A
ug 4/16
LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
Installation and Operation Manual Page iv
ENG-FORM: 820-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
Table of Contents
Section Title Page
1.0 Description
1.1 Introduction 1-1
1.2 Product Description 1-1
1.3 Design Features 1-2
1.4 Specifications 1-3
1.4.1 Electrical Specifications 1-3
1.4.2 Physical Specifications 1-4
1.4.3 Environmental Specifications 1-5
1.5 Product Limitations 1-5
2.0 Installation
2.1 Introduction 2-1
2.2 Unpacking and Inspection 2-1
2.2.1 Warranty 2-1
2.3 Installation Procedures 2-1
2.3.1 Warnings 2-1
2.3.2 Cautions 2-1
2.3.3 Cabling and Wiring 2-2
2.3.4 Post-Installation Checks 2-2
2.4 Adjustments and Connections 2-3
2.5 Accessories Required But Not Supplied 2-3
2.6 Continued Airworthiness 2-4
2.7 Installation Drawings 2-4
3.0 Operation
3.1 Introduction 3-1
3.2 General 3-1
3.3 Controls and Indicators 3-1
3.3.1 Annunciators 3-1
3.3.2 Remote ON/OFF 3-2
LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 1-1
ENG-FORM: 800-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
Section 1.0 Description
1.1 Introduction
Information in this section consists of product description, design features and specifications for the
LSA400-001 Loud Speaker Amplifier. All derivative product information will be contained in the applicable
manual supplement, which may be obtained from AEM as required.
Review all notes, warnings and cautions.
1.2 Product Description
The LSA400-001 is AEM’s next generation loud speaker amplifier. It utilizes a highly efficient Power
Supply and a Class-D Amplifier to produce 400 watts RMS (800 watts Peak) of output power with minimal
distortion and noise.
The LSA400-001 is more compact and lighter than other comparable amplifier systems. It also has
flexible options for remote mounting either vertically or horizontally.
The LSA400-001 is designed and qualified to meet operational roles on fixed wing aircraft as well as light
and medium helicopter airframes with single and twin turbine engine types.
It is intended for use with an LS300 or LS600 external speaker array and a siren controller as a complete
system.
Siren Controller
Loud Speaker Amplifier
Loud Speaker
LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 1-2
ENG-FORM: 800-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
1.3 Design Features
The LSA400-001 has a single differential speaker output capable of driving 400 watts RMS (800 watts
Peak) into a 3 Ohm load.
The LSA400-001 has a number of built in protection circuits that keep the amplifier from being damaged,
including Output Short Circuit and Thermal Shutdown which minimize the possibility of damage to the
speaker output stage.
The LSA400-001 has four audio inputs consisting of one microphone, two single ended inputs and one
differential audio input to provide input source flexibility. Each input has a field adjustable gain level to
optimize speaker output power for various input signal levels.
The amplifier status annunciators for the protection circuits and user accessible audio input adjustments
are displayed externally near the D-Sub connector.
See Section 2.0 for further details on the Audio Input Adjustments and Section 3.0 for Status
Annunciators.
There are two Remote On/Off inputs that provide the ability for low current switched high or switched low
remote activation of the amplifier if being turned on remotely from a siren controller.
A single PA Ready output provides a switched ground for remote sensing or displaying of the amplifier
ready state.
Amplifier Status Annunciators
Audio Input Adjustments
LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 1-3
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
1.4 Specifications
1.4.1 Electrical Specifications
1.4.1.1 Input Operating Voltage
Normal Operating Conditions:
Nominal: +28.0 Vdc
Maximum: +30.3 Vdc
Minimum: +22.0 Vdc
Abnormal Operating Conditions:
Nominal: N/A
Maximum: N/A
Minimum: N/A
Input Current: 20A maximum @ 28.0 Vdc
1.4.1.2 Input Signals
Microphone Audio (MIC HI IN)
Quantity: 1
Circuit Type: Single-Ended
Rated Level: 250 mVrms ± 10%
Impedance: 150 Ohm ± 10%
Mic Bias: 13.5 ± 0.5Vdc
Auxiliary Differential Audio (AUDIO HI IN)
Quantity: 1
Circuit Type: Differential
Rated Level: 500 mVrms ± 10%
Impedance: 1k Ohm ± 10%
Single-Ended Auxiliary Audio (AUX SE HI IN)
Quantity: 2
Circuit Type: Single-Ended
Rated Level: 500mVrms ± 10%
Impedance: 1k Ohm ± 10%
Remote On/Off (REMOTE ON/OFF 28V IN)
Quantity: 1
Rated Level: 28V (active high), 10V minimum
Current (Sink) < 2 mA
Remote On/Off (REMOTE ON/OFF GND IN)
Quantity: 1
Rated Level: 0V (active low), 1V maximum
Current (Sourced) >5 mA
LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 1-4
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CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
1.4.1.3 Output Signals
Speaker Audio (SPEAKER)
Quantity: 1
Circuit Type: Differential
Output Power: 400 Wrms (800 Wpk) into 3 Ohms
Rated Level: 34.65 Vrms into 3 Ohms
Duty Cycle: 25% duty cycle siren audio, 1 min max. on time
100% duty cycle voice audio
Freq. Response: < 3db from 200 Hz to 6 kHz
Distortion: < 10% @ Rated output
< 3% @10% of Rated output
Audio Noise Level: ≥60 dB below rated output of the system
PA Ready (PA READY)
Quantity: 1
Circuit Type: Single Ended, Switched ground (active low)
Rated Level: ≤3 Ω
Current: 0.4 A maximum
1.4.2 Physical Specifications
Height 5.45" (138.5 mm)
Length 9.80" (248.9 mm)
Width 2.04" (51.9 mm)
Weight 3.7 lbs (1.7 kg) max.
Mounting Remote mount using four AN4 (1/4-28) Hex fasteners and four
0.28”inside Diameter, 0.73”outside Diameter flat washers
Recommend mounting with heatsink fins facing upwards or
vertical and exposed to airflow.
Connector 36 pin D-sub combination connector (50 pin shell) with jack post
hardware
Material/Finish Enclosure and heatsink are aluminum with Clear MIL-DTL-5541
Type II Class 3 coating
Bonding 2.5 m
LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 1-5
ENG-FORM: 800-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
1.4.3 Environmental Specifications
Temperature -30 to +60C (operating)
-55 to +85C (survival)
Altitude 25,000 feet max.
Humidity 95% Non-condensing
Operational Shock 6g for 11 ms
Crash Safety Shock 20g for 11 msec (impulse), 3 sec (sustained)
Vibration Conforms to DO-160G Category ‘S’Curves B & M
and Category ‘U2’ Curves F & F1
Qualification of the LSA400-001 Loud Speaker Amplifier was completed in accordance with
DO-160G Env. Cat. B4-BAB[SBM][U2FF1]XXXXXXA[BXX]AB[AC][RR]LXXXAX.
1.5 Product Limitations
At rated output, utilizing siren audio, the LSA400-001 should not be operated with more than a 25% duty
cycle at one minute of on time, followed by three minutes of off time.
End of Section 1.0
LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 2-1
ENG-FORM: 805-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
Section 2.0 Installation
2.1 Introduction
Information in this section consists of: unpacking and inspection procedures, installation procedures,
post-installation checks, and installation drawings.
2.2 Unpacking and Inspection
Unpack the equipment carefully. Inspect the unit visually for damage due to shipping and report all such
claims immediately to the carrier involved. Note that each unit should have the following:
- LSA400-001 Loud Speaker Amplifier
- Product Information Card
- Certificate of Conformity or Release certification
Verify that all items are present before proceeding and report any shortage immediately to your supplier.
2.2.1 Warranty
All Anodyne Electronics Manufacturing Corp. (AEM) products are warranted for 2 years. See the website
www.aem-corp.com/warranty for complete details.
2.3 Installation Procedures
2.3.1 Warnings
WARNING:
When the amplifier is connected to an appropriate speaker, the system
is capable of producing high sound pressure levels. Proper personal
protective equipment is required to prevent hearing damage.
2.3.2 Cautions
CAUTION:
Do not obstruct ambient air flow to the heatsink fins.
Do not operate the unit outside of the parameters listed in the
Electrical Specifications section.
Always check ADF and compass calibration after installing external speakers
or power amplifiers.
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