The product information and design disclosed herein were originated by
and are the property of Telex Communications, Inc. Telex reserves all
patent, proprietary design, manufacturing, reproduction, use and sales
rights thereto, and to any article disclosed therein, except to the extent
rights are expressly granted to others.
COPYRIGHT NOTICE
Copyright 2006 by Telex Communications, Inc. All rights reserved.
Reproduction, in whole or in part, without prior written permission from
Telex is prohibited.
WARRANTY NOTICE
See the enclosed warranty card for further details.
CUSTOMER SUPPORT
Technical questions should be directed to:
Customer Service Department
RTS/Telex Communications, Inc.
12000 Portland A venue South
Burnsville, MN 55337 USA
Telephone: 800-392-3497
Fax: 800-323-0498
All shipments of product should be made via UPS Ground, prepaid (you
may request from Factory Service a different shipment method). Any shipment upgrades will be paid by the customer. The equipment should be
shipped in the original packing carton. If the original carton is not available, use any suitable container that is rigid and of adequate size. If a substitute container is used, the equipment should be wrapped in paper and
surrounded with at least four (4) inches of excelsior or similar shockabsorbing material. All shipments must be sent to the following address
and must include the Proof of Purchase for warranty repair. Upon completion of any repair the equipment will be returned via United Parce l Service
or specified shipper, collect.
Factory Service Department
Telex Communications, Inc.
8601 East Cornhusker Hwy.
Lincoln, NE 68507 U.S.A.
Attn: Service
This package should include the following:
RETURN SHIPPING INSTRUCTIONS
Customer Service Department
Telex Communications, Inc. (Lincoln, NE)
Telephone: 402-467-5321
Fax: 402-467-3279
Factory Service: 800-553-5992
Please include a note in the box which supplies the company name,
address, phone number, a person to contact regarding the repair , the type
and quantity of equipment, a description of the problem and the serial
number(s).
CHAPTER 1
CHAPTER 2
CHAPTER 3
Description and Specifications....................................................................................1
General Description....................................................................................................2
The LMS-325 is a modular amplified speaker that can be used to maonitor one or two intercom or program channels. The
LMS-325 is a five-watt. eight-ohm modular amplified speaker for use with RTS rack or console-mounted intercom systems.
Features
Features of the LMS-325 include:
• Two monaural phone jacks for two separate audio inputs.
• One 3-pin XLR connector for RTS intercom channels one and two.
• Control to adjust volume of speaker output.
• Control that balances the speaker’s audio level between input one and input two.
• Power externally from a Telex Wall Pack.
Controls
The LMS-325 has the following controls:
• Detented volume control to simultaneously adjust the speaker level for both input lines.
• Control to balance the relative level of the input line one and input line two.
Specifications
General
Impedence
8 ohms
Power Rating
5 watts
Sensitivity
90± dB/2.83V/meter on axis averaged over one octave bands centered at 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz and 8 kHz
when enclosed in a sealed box with a volume of 1.3 liters.
Frequency Response
200 Hz to 10 kHz ± dBon 1/10 octave measurements in a sealed box with a volume of 1.3 liters.
Free Air Resonance
200 Hz to 250 Hz
Stray Magnetic Field
Less than 1 gauss at a distance of 1 cm from chassis.
Mechanical Noise
Free of buzzes and rattles with 5W sinewave input from 100 Hz to 10 kHz
2
Connector Pin Configurations
Environmental Requirements
Storage: -20°C to 80°C; 0% to 95% humidity, non-condensing.
Operating: 0°C to 50°C; 0% to 95% humidity, non-condensing.
NOTE: Specifications are for INPUT 1 with the balance control set for minimum attenuation. Specifications for INPUT 2 are
identical.
Input Impedance
47 kΩ
Input Level
0.7 Vrms
Output Amplifier Power
5 W maximum, 4 W continuous into 8 Ω
Signal to Noise Ratio
75 dB, reference 2 W into 8 Ω
Total Harmonic Distortion
Less than 0.5% at 2 W nominal.
Balance Control
12 dB maximum relative attentuation.
3
Description and Specifications
4
What you will find in this chapter:
•External Connections & Controls
•Mounting Configurations
CHAPTER 2
Operation
5
Operation
;
;
External Connections & Controls
NOTE: The numbers refer to the callouts in Figure 1.
1. Volume Control
Use this control to simultaneously adjust the speaker
level for both speaker input lines.
2. 12-15 VDC Input Jack
®
The LMS-325 is powered from a Telex
(part number 532006-000). Plug the Wall Pack inot the
12-15 VDC jack and into an AC outlet.
3. Balance Control
This control adjusts the relative level of the Input 1and
Input 2 (Channel 1 and Channel 2, respectively). Use a
small flat-blade screwdriver to adjust the
control.
Wall Pack
4. Audio Input Jacks
These 1/4” monaural phone jacks can be used to
connect audio inputs from some other line-level
program sources (an auxiliary output from a radio or
tap player for example).
5. XLR Line Input Connector
This 3-pin female XLR jack can be connected directly
to an RTS™ intercom line. The RTS™ intercom line
may carry Channel 1, Channel 2, or both channels.
1
;;;;;;;;;;;;
;;;;;;;;;;;;
2
+
-
12-15 VDC
Figure 1. LMS-325 Connections and Controls
RTS LMS325 VOLUME
45
3
BAL
INPUT 1
INPUT 2
LINE LEVEL
LINE
TELEX COMMUNICATIONS, INC.
MADE IN USA
6
Mounting Configurations
Mounting Configurations
Optional mounting configurations for modular RTS™ intercom stations are shown in Figure 2 and include rack-mount, console-mount, desktop, and portable stations.
Figure 2. Optional Mounting Configurations
7
Operation
8
What you will find in this chapter:
•Where to obt ain parts
•Mechanical Parts
•Electrical Parts
CHAPTER 3
Replacement Parts
9
Replacement Parts
Where to Obtain Parts
Parts may be obtained directly from Telex at:
Telex/RTS Systems
12000 Portland Ave South
Burnsville, MN 55337
800-392-3497
Fax 800-323-0498