Owner’s Manual
TSD-RL21
2x1 Mic/Line Mixer
TSD-RL21
2x1 Mic/Line Mixer with Remote Level
TSD-RL21
2x1 Mic/Line Mixer
Owner’s Manual
Description
The versatile Atlas Sound TSD-RL21 2x1 mic/line mixer is ideal for applications where paging, public address, and BGM music is required.
tions such as conference center meeting rooms, football stadiums, gymnasiums, retail/hospitality or other areas requiring versatile, multi source mix control.
Channel one may be configured via rear panel dipswitch to accommodate mic or line level while channel two features a stereo summing RCA line level input. Both inputs are adjustable by front panel controls with removable knobs, which may be easily replaced by security covers to prevent tampering.
The remote level control feature allows use of the Atlas Sound AAVC-10K (or equal) decorative wall plate control for convenient remote adjustment of either the entire mix bus or RCA input 2 only (the typical BGM input).
The TSD-RL21 is part of a full line of Atlas Sound Time Saving Devices. These compact
(1.5" x 4" x 2.75") units are designed to solve some of the common audio system problems in the easiest and in the most efficient and cost-effective way. All models are made from high quality components and include removable individual I/O connectors for quick and precise wiring, separate ground terminals for all I/Os assuring secured connections, and removable level controls that can be replaced with tamper-proof security covers.
Features
Balanced Line Output
Peak & Signal Indicator LEDs
• Remote Level Control Assignable to the
Mixed Signal or to a BGM Source
• High Gain Output for Driving Long
Lines
• Cable Management System
• Multiple Mounting Configurations
• Separate Ground Connections
• Removable Phoenix Style I/O Connectors
• Meets Energy Star™ Standards
• Compact Chassis Design
Audio Applications
• Mixer
• Mic Preamp
• Line Preamp
• Stereo Summing Preamp
• Line Drive
• Remote Level Control
Installation
• Churches
• Restaurants
• Sports Bars
• Schools
• Industrial Facilities
• House of Worship
Owner’s Manual
Front Panel Description
5
TSD-RL21
2x1 Mic/Line Mixer
5
5
3
4
2
5
1
1. Input Level Controls 1-2 - Adjusts audio signal level that is appled to the RL-21 input circuitry. Turn
clockwise to increase the signal level and counter-clockwise to decrease it. Note: The Input Level
Control knobs can be removed and replaced with a supplied security cover to prevent
unauthorized adjustment.
2. Power LED - Illuminates BLUE when 24VDC power is present.
3. Input Peak LED - Illuminates Red when the input signal reaches 3dBV below when signal clipping
will occur. Occasional flashing is normal but if this indicator is continuously On, then reduce the
input level using the input level control on the front panel.
4. Signal LED - Illuminates Green when the input signal strength reaches 25mV to verify a signal
path.
5. Bracket Retainer Points - Each TSD includes two mounting brackets for securing the TSD to a
cabinet or wall. Remove screws and align the bracket with the panel hole before firmly tightening
the screws.
TSD-RL21
2x1 Mic/Line Mixer
Rear Panel Description
6
5
4
6
Owner’s Manual
6
6
1 2 3
TSD Input/Output connections are removable for easy system wiring. The connector has a 3.5mm pitch between pins.
1. DC Power Input - Each TSD that requires DC power comes with a 2 position connector for
an external 24VDC power supply (sold separately). Because of the TSD’s low power consumption,
a single external power supply may power more than one TSD. Please refer to the specifications
on current requirements in milliamps to match with the appropriate power supply. Note: It is
acceptable to exceed the current requirements of the TSDs but NOT safe to use a power supply
that is below the current requirement of the device.
2. Mic/Line Input 1 - Connects to balanced line or mic level sources. Your connection must be mated
properly to the input connector or signal loss and/or noise may occur. For gain or source input
type selection, refer to the “Dip Switch Function Identification” chart for proper input setting.
Note: Unbalanced line level inputs can be inserted with proper wire configuration by connecting
the (G) and (-) terminals together.
3. RCA Input 2 - Unbalanced audio signals applied to these female RCA connectors are summed
electronically and fed to the output.
4. Line Output - Provides output when an input signal is present for connection to balanced mic or
line level devices. Your output connections must be connected properly to the connectors or loss
and/or noise may be introduced into the signal. Note: Unbalanced line level devices can be used
with proper wire configuration by connecting the (G) and (-) terminals together.
5. Remote Level - For remote gain control of the RL21, connect the Atlas Sound AAVC-10K (or equal)
wall plate to this terminals. Set Dip Switch 8 for the remote level to control a mixed signal or Input
3 signal only.
6. Cable Management Retainer Points - Use rear panel screws to secure included cable
management retainers.
Owner’s Manual
TSD-RL21
2x1 Mic/Line Mixer
Dip Switch Function Identification
SWITCH FUNCTIONS
Switch Position
Microphone.
DIP
• DIP SW # 2 - Remote Level sets whether the remote volume control adjusts all inputs mixed or
Input 2 only. Up position is Input 2 (RCAs) only, down position is both Input 1 and Input 2.
Knob and Security Cover
All front panel level controls feature a removable knob that can be replaced with an included security cover. Follow these steps to prevent potentiometer damage or unwanted changes.
1. Knob Installation - Turn the potentiometer shaft fully counter-clockwise. Align the knob indicator
to the lowest setting on the panel and the potentiometer shaft slot. Carefully press the knob onto
the potentiometer shaft. Do not force or damage may occur to the potentiometer.
2. Security Cover Installation – Remove the knob from the panel and insert the cover. Do not force or
damage may occur to the potentiometer. Small pliers may be required to remove the knobs.
Mounting
There are three ways to securely mount this TSD:
1. Velcro™ - Each unit includes industrial grade Velcro™ with adhesive backing to adhere to any
flat surface.
2. Brackets - Each unit includes two mounting brackets to secure to a cabinet or wall.
3. Rack Mount Panel - The optional TSD-RMK rack mount panel supports up to four TSDs in a
1RU space.
TSD-RL21
2x1 Mic/Line Mixer
Block Diagram
MIC/LINE
DIP SWITCH FUNCTION SET
1
INPUT
LINE
MIC
2
VCA
RCA
MIXED
1 2
INPUT 1
+
–
G
REMOTE
LEVEL
INPUT 1
LEVEL
FRONT PANEL
INPUT 2
R
L
INPUT 2
LEVEL
FRONT PANEL
24V
POWER SHOW
LED
DC 24V
Owner’s Manual
PEAK
FRONT PANEL
REMOTE LEVEL
SIGNAL
OUTPUT
+
–
G
Specifications
Description
Chassis Color
Chassis Material
2 x 1 Mic/Line Mixer with Remote Level
Black
Aluminum
Inputs
Type
Connection
Qty 1, Unbalanced
RCA Left and Right Actively Summed
Impedance 10KΩ
Input Level 316mV (-10dBV) = 2V (+6dBV) Balanced Output,
Maximum Input 1.6V (4.1dBV)
Type
Connection
Qty 1, Balanced Mic or Line Selectable
Removable 3 Position Captive Screw 3.5mm Spacing
Impedance 1.2KΩ Balanced, 600Ω Unbalanced
Line Input Level
Mic Input Level
1V (0dBV) Balanced = 2V (+6dBV) Balanced Output,
Maximum Input 6V (15dBV)
46dB Gain 10mV (-40dBV) Balanced = 2V (+6dBV) Balanced Output,
Maximum Input 40mV (-27dBV)
Owner’s Manual
TSD-RL21
2x1 Mic/Line Mixer
Outputs
Type
Connection
Qty 1, Balanced Line
Impedance 300Ω Balanced, 150Ω Unbalanced
Line Output Level
Removable 3 Position Captive Screw 3.5mm Spacing
1V (0dBV) In = 2V (+6dBV) Balanced, Maximum Output 6V (15dBV)
Controls
Input Level Control
Remote Level
Dip Switch Function
Indicators
Input Signal
Input Peak
Power
Qty 2, Removable Knobs with Security Covers
Control Port 10K External Pot,
Removable 2 Position Captive Screw 3.5mm spacing
• Input 1, Mic/Line Select
• Remote Level Assign, Mix or Input 2
Green, 25mV On Threshold
Red, -3dB Before Clip
Blue
Electrical
Frequency Response
THD
Signal to Noise
20Hz - 20kHz (±1dB)
.06% & 1kHz
Line to Line: 85dBV
Mic to Line: 70dBV
Mounting
Velcro™
Brackets
TSD-RMK
Cable Retainer
Industrial Grade, Included
Qty 2, Included
Optional 1 RU Rack Mount Panel (Supports 4 TSD Units)
Qty 2, Included
Power Requirements
Voltage 24VDC
Power Consumption
Power Consumption
60mA
1.4W
Dimensions
Weight
H 1.5" (39mm) x W 4" (101mm) x D 2.75" (70mm)
6oz, .165kg
Accessories
TSD 24VDC Power Supplies
TSD-RMK 1 RU Rack Panel
Safety and Certifications
External Power Supply cUL, CE, RoHS, TUV
TSD-RL21
2x1 Mic/Line Mixer
Owner’s Manual
Limited Warranty
All products manufactured by Atlas Sound are warranted to the original dealer/installer, industrial or commercial purchaser to be free from defects in material and workmanship and to be in compliance with our published specifications, if any. This warranty shall extend from the date of purchase for a period of three years on all Atlas Sound products, including SOUNDOLIER brand, and ATLAS
SOUND brand products except as follows: one year on electronics and control systems; one year on replacement parts; and one year on Musician Series stands and related accessories. Additionally, fuses and lamps carry no warranty. Atlas Sound will solely at its discretion, replace at no charge or repair free of charge defective parts or products when the product has been applied and used in accordance with our published operation and installation instructions. We will not be responsible for defects caused by improper storage, misuse (including failure to provide reasonable and necessary maintenance), accident, abnormal atmospheres, water immersion, lightning discharge, or malfunctions when products have been modified or operated in excess of rated power, altered, serviced or installed in other than a workman like manner. The original sales invoice should be retained as evidence of purchase under the terms of this warranty. All warranty returns must comply with our returns policy set forth below. When products returned to Atlas Sound do not qualify for repair or replacement under our warranty, repairs may be performed at prevailing costs for material and labor unless there is included with the returned product(s) a written request for an estimate of repair costs before any nonwarranty work is performed. In the event of replacement or upon completion of repairs, return shipment will be made with the transportation charges collect.
EXCEPT TO THE EXTENT THAT APPLICABLE LAW PREVENTS THE LIMITATION OF CONSEQUENTIAL
DAMAGES FOR PERSONAL INJURY, ATLAS SOUND SHALL NOT BE LIABLE IN TORT OR CONTRACT
FOR ANY DIRECT, CONSEQUENTIAL OR INCIDENTAL LOSS OR DAMAGE ARISING OUT OF THE
INSTALLATION, USE OR INABILITY TO USE THE PRODUCTS. THE ABOVE WARRANTY IS IN LIEU OF
ALL OTHER WARRANTIES INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE.
Atlas Sound does not assume, or does it authorize any other person to assume or extend on its behalf, any other warranty, obligation, or liability. This warranty gives you specific legal rights and you may have other rights which vary from state to state.
©2010 Atlas Sound L.P. All rights reserved. Atlas Sound is a trademark of Atlas Sound L.P.
All other trademarks are the property of their respective owners. ATS003946 RevA 11/10
