Classe Audio M-1000 Specifications download pdf (Page 6)

6 C2985M-A (3/11)

Wiring

AUDIO

NOTES:

• The maximum recommended cable length for the audio wiring is 304.8 m (1,000 ft).

• The AUD-1 is designed to work with microphones that have an internal preamplifier and provide

professional line-level output (+4 dBu).

• If your microphone requires more than 12 VDC power, you will need to use a separate power line to

power the microphone unit.

• If your microphone is a consumer line-level device (–10 dBu), the audio output may be quieter than

you expect. Mic-level devices are not recommended as they must be amplified to a line-level signal,

which often results in excessive noise.

To connect the wiring for the AUD-1:

1. Connect UTP wiring from an external microphone to pins 2 and 3 of the AUD-1 TB2 connector.

2. To supply power to the microphone, connect UTP wiring to the power terminals of the microphone

and terminate them at pins 1 (12 VDC) and 4 (return) of the AUD-1 TB2 connector.

3. Connect UTP wiring from the external speakers to pins 1 and 2 of the AUD-1 TB1 connector.

Figure 2. Wiring the AUD-1

Speaker

Amplifier

600-Ohm Impedance Matching Transformer

UTP Wiring

+12 V Wire

0 V (zero volt) Return Wire

UTP Wiring

600-Ohm Impedance Matching Transformer

Line-Level Microphone

1 2 3 4 5 6 7 8 9 10 11 ... 15 16

No comments

Classe Audio M-1000 Specifications Page 6