Operating Manual - NE Multi Channel Power Amplifier
Physical Description
Each model in the NE Multichannel series is 2RU, and has a unit weight of 20 pounds (9kg) or less. The model number
is indicated in the lower left corner of the front panel.
Amplifier Front Panel
1. Mounting Holes – For rack mounting
2. Power Switch – Switches the unit on or off. Note: The power switch can be disabled from Protea
3. Status LEDs – Indicate status of: Power, Standby, Protect, Power Switch Disable, and Comm activity.
4. Air Inflow Vents – Cool air enters here and is blown out the sides.
5. Channel Controls – Channel control area.
6. Signal LEDs – The lowest LED will begin to light when the output voltage is -18dBu below rated output. The Clip
LEDs will begin to flash when output voltage is 1/2 volt below the output power supply voltage.
7. Bridge – This LED indicates that the channel pair is selected to BRIDGE mode from the back panel switch, and that
only the odd input channel level control is active.
8. Temp and Current LEDs – The Temp LED indicates that the amplifier has reached an excessively high operating
temperature. The Current LED confirms that the amplifier output is delivered to a speaker load.
9. Channel Attenuators – These control the input signal level to the amp, and can be disabled from software.
10. Factory Reset – To reset all internal configurations (including passwords) back to their original factory settings, press
and hold this recessed front panel tact switch during power up until all channel LEDs are lit. Upon reset completion, the LEDs
will turn off and the amp will resume normal operating mode.
Amplifier Rear Panel
1. Optional Network Audio – This factory option allows connection to a Dante or Cobranet audio network.
2. Optional AES/EBU or MIC Input - This slot allows for installation of AES/EBU digital inputs or MIC inputs.
3. Ethernet Port - This RJ45 jack is for connecting to an Ethernet network with Protea
4. Input Connector - This is used for a three wire (G, +, -) balanced input on Euroblock connectors.
5. Normal/Bridge Switch - This switches the channel pair to Bridge Mode
6. Euroblock Speaker Connectors - Used to connect the speakers
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(illustration on next page)
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