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7
Design Guide
Input 1 offers a choice of balanced XLR or ¼ in. phono connector. Plug an audio source into Input 1: move the
input select switch to the type of input source being used. Select “Line” for Line Inputs, “Mic” for dynamic
microphones or “Mic + PH Power” for condenser microphones. A balanced feed from a soundboard can also
be used with Input 1.
Key Concepts in Value Package Setup
Input Selection
Input 1: Connecting the audio source
The LT-803-072 has two audio input options: Input 1 and Input 2. Input 1 is a balanced connection using either an
XLR or ¼ in. phono connector, and input 2 is two unbalanced phono connectors. Use Input 1 if you are using a
microphone or if you have a balanced connection such as a professional audio mixer (you can also use Input 1
for unbalanced connections). Use Input 2 to connect to an unbalanced audio source.
Balanced XLR or
1/4 in. phono connector
Unbalanced right
and left phono
connectors
Plug your unbalanced audio source into Input 2 and select the audio level switch for -10 dBu or +10 dBu to
match the audio level coming from your equipment.
Input 2: Connect the audio source