Owner’s Manual
TSD-RL21
2x1 Mic/Line Mixer
AtlasSound.com
– 5 –
Specifications are subject to change without notice.
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
Dip Switch Function Identification
Switch Position
• DIP SW # 1 - Microphone or Line Input 1 gain selection. Up position is Line, down position
Microphone.
• 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.
SWITCH FUNCTIONS
