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Barrier Strip Inputs
Each channel has a balanced 3-terminal input. Wiring is connected with simple hand tools, and inputs can be changed quickly.
The input impedance is 20k ohm balanced or 10k ohm unbalanced.
Balanced connections are recommended to reduce AC hum and interference, especially with long cable runs. Unbalanced connections may be
suitable for short cables. The signal's source impedance should be less than 600 ohms.
Balanced inputs: Strip the wires ¼ inch (6 mm) and connect to the terminals as shown. Be sure to tighten the screws firmly. (See Figure 9)
If unbalanced connections are required, connect a jumper wire between the minus (-) terminal and the ground terminal. Then connect the input
signal to the positive (+) terminal and the shield to the minus or ground terminal.
Unbalanced inputs: Strip the wire ¼ inch and connect a jumper wire between the minus (-) terminal and the ground terminal. Then connect the input
signal to the positive (+) terminal and the shield to the minus or ground terminal, as shown. Be sure to tighten the screws firmly. (See Figure 10)
XLR and TRS (1/4”) Inputs
Each channel has a balanced 3-terminal XLR and TRS input. Inputs are connected with standard
cables and can be changed quickly. Pinouts are marked on the rear panel and shown in
the illustration.
The input impedance is 20k ohm balanced or 10k ohm unbalanced.
Balanced connections are recommended to reduce AC hum and interference, especially with long
cable runs. Unbalanced connections may be suitable for short cables. The signal's source impedance
should be less than 600 ohms.
Unbalanced TRS connectors (2-terminal) automatically connect the minus (-) terminal to ground
when inserted.
— Figure 9 —
— Figure 10 —
— Figure 11 —
INPUT IMPEDANCE:
20K BALANCED
10K UNBALA
NCED