Rear Panel Features

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REAR PANEL FEATURES

1.POWER CONNECTOR – Connect the supplied 3-prong power cord to this connector.

1a. NOTE: Before plugging in to a power receptacle, make sure that voltage of your PA-PRO 900 is the same voltage as your local AC mains voltage. The PA-PRO 900 power input setting is factory set.

2.FUSE HOUSING – Houses the fuse. To remove the fuse, unscrew the fuse cap counter-clockwise. In the case of a blown fuse, replace once only. If the fuse blows a second time, do not attempt to replace fuse again. If a fuse blows repeatedly, there may be damage an internal component. Further attempts to power on the unit can cause more damage. In this case, refer to an authorized service center for troubleshooting

2a. NOTE: Only replace with the same type and rating of fuse as marked.

3.WIRELESS MODULE EXPANSION PORTS – Install optional UHF wireless modules in these ports. For details on operating UHF wireless channels, please refer to the optional accessories section. (page 23)

To install an optional module:

1.Unscrew the two retaining screws.

2.Remove cover plate and store it in a safe place.

3.Fully insert UHF wireless module.

4.Replace and tighten screws.

4.WIRELESS ANTENNA CONNECTORS – When the optional wireless modules are installed, connect the antennas here for UHF wireless reception.

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5.SPEAKER CONNECTORS – These jacks provide speaker- level output power from the internal power ampliﬁ er to connected passive speakers. There are two types of connector available: speakon and ¼” TS.

Speakon outputs are wired PIN 1+positive (hot), and PIN 2-negative (cold).

¼” TS outputs are wires TIP +positive, and SLEEVE –negative.

The speaker-level output can be conﬁ gured one of two ways via the POWER AMP ASSIGN switch on the front panel:

MAIN L/R – This conﬁ guration is for standard MAIN stereo L/R output. The left speaker output is the MAIN L signal, and the right speaker output is the MAIN R signal. Use this conﬁ guration to power two passive main speakers for straight stereo output.

MAIN L/R+MONITOR – This conﬁ guration outputs the MAIN L/R channels as a mono signal to the LEFT (MAIN) jacks, and the MONITOR channel as a mono signal to the RIGHT (MON) jacks. Use this conﬁ guration to power a passive PA/MAIN speaker on the left side and a passive stage monitor on the right side.

NOTE: If you are going to use one speaker per channel, ensure the speakers’ impedance is no lower than 4 ohms. If you are going to connect two speakers per channel, ensure the speakers’ impedance in no lower than 8 ohms. These two types of connectors are wired in parallel, therefore they are able to be used together.