Norden 6 Zone Integrated PA Host with Amplifier User Manual

Product Overview

The Norden NVS-PA0028006CP/NVS-PA0029006CP/NVS-PA0030006CP/NVS-PA0031006CP is a professional-grade digital mixer amplifier. It features 4 MIC and 4 AUX inputs, along with USB, FM, Bluetooth, and TF card playback capabilities. The amplifier supports 2-channel RJ-45 remote paging via the NVS-PA0032006PM paging station and includes an integrated display for real-time system monitoring. Built-in protection circuitry guards against overload, clipping, short circuits, and over-temperature conditions, ensuring stable and reliable performance in commercial audio and public address applications.

Features

• LCD lattice screen with backlight for enhanced information display and user-friendliness.
• Five-segment level indicator.
• Built-in Bluetooth, FM, and MP3 playback.
• Two-channel RJ-45 remote paging microphone interfaces with zone control and strong cut function. Supports DC+24V power supply, with 6 paging stations cascaded per channel, and a transmission distance of up to 300m-600m.
• Independent volume adjustment knob for six zones.
• Strong cut and one-touch switch functions for broadcasting specific zones.
• AC and DC24V power supply can be turned off.
• 4 microphone inputs, 1 emergency signal input, 4 line inputs, and 1 line output.
• 70V/100V fixed voltage output and 4-16Ω fixed-resistance output.
• Priority function with the order: MUTE>EMC>SIREN>MIC1>CHIME>Remote Paging>LINE1=MIC2/LINE2=MIC3/LINE3=MIC4 /LINE4=MP3=BT=FM. (No chime output when there is an alarm sound).
• Controls for total volume, zone volume, Siren, Chime, EMC IN, MIC, and AUX volume. Includes treble and bass tone control.
• SIRNE short-circuit trigger function allows remote control or control by other equipment, with independent alarm sound output.
• MUTE short-circuit triggered mute function, controllable remotely or by other devices.
• 1-channel EMC alarm signal input for alarm signals from other devices.
• Controllable by an infrared remote control.
• Power-off memory function displays the last content when powered on.

Appearance

Front Panel

The front panel includes:

• 1. USB: Insert a USB flash drive for MP3 playback (32GB memory).
• 2. SD Card
• 3. MIC1 Volume Adjustment Knob: Adjusts MIC1 volume (clockwise for up, counterclockwise for down).
• 4. LINE1 Volume Adjustment Knob: Adjusts LINE1 volume (clockwise for up, counterclockwise for down).
• 5. MIC2/LINE2 Volume Adjustment Knob: Adjusts MIC2/LINE2 volume (clockwise for up, counterclockwise for down).
• 6. MIC3/LINE3 Volume Adjustment Knob: Adjusts MIC3/LINE3 volume (clockwise for up, counterclockwise for down).
• 7. Bass Volume Adjustment Knob: Adjusts bass volume (center position as reference, clockwise for up, counterclockwise for down).
• 8. Treble Volume Adjustment Knob: Adjusts treble volume (center position as reference, clockwise for up, counterclockwise for down).
• 9. Main Volume Adjustment Knob: Adjusts the volume of all signals except the emergency input signal (clockwise for up, counterclockwise for down).
• 10. 6-Zone Volume Adjustment Knob & Indicator: Adjusts volume for 6 zones (clockwise for up, counterclockwise for down). Indicator is blue when the zone is open.
• 11. Power Switch: Press "ON" to turn on, "OFF" to turn off.
• 12. Protection Indicator: Indicates DC temperature, overcurrent, or short circuit protection.
• 13. Level Indicator: Displays audio output level.
• 14. Power Supply LED
• 15. FN Zone Switch: Short press to control zones 1-6 on/off. Pressing FN for >1s opens all zones; pressing again restores the previous state.
• 16. Mode: Switches between USB, AUX, Bluetooth, and FM modes.
• 17. LOOP Volume Adjustment Button: Adjusts volume for MIC4/LINE4, EMC, Chime, and SIREN (0-32).
• 18. Display screen
• 19. Chime button
• 20. Next song / (FM mode for next program): Navigates to the next song/program. Long press in FM, AUX, USB, SD, and Bluetooth modes to decrease volume.
• 21. Infrared Remote Control Receiving
• 22. Previous Song / (FM mode for previous program): Navigates to the previous song/program. Long press in FM, AUX, USB, SD, and Bluetooth modes to increase volume.
• 23. Play/Pause: Pauses playback or searches in FM mode.

Rear Panel

• 1. Power Input Connector AC230V: Connect the power plug here.
• 2. 6-zone Output
• 3. LINE Output
• 4. LINE1 Input
• 5. MIC1 Balanced Input
• 6. MIC2, LINE2 Input
• 7. MIC3, LINE3 Input
• 8. MIC4, LINE4 Input
• 9. EMC Trigger Input
• 10. SIREN Short-circuit Trigger
• 11. Silent Short-circuit Trigger
• 12. FM Antenna
• 13. Fan Port
• 14. LINE4, MIC4 Phantom Voltage Switch: Toggles phantom voltage. Turn down volume or power off before toggling.
• 15. LINE3/MIC3 Phantom Voltage Switch: Toggles phantom voltage. Turn down volume or power off before toggling.
• 16. LINE2/ MIC2 Phantom Voltage Switch: Toggles phantom voltage. Turn down volume or power off before toggling.
• 17. MIC1 Phantom Voltage Switch: Toggles phantom voltage. Turn down volume or power off before toggling.
• 18. NVS-PA0032006PM Remote Paging MIC Input
• 19. Fixed resistance and voltage output: For fixed resistance/voltage speakers.
• 20. DC+24V Power Input (emergency power input)

Operating Instructions

1. Initial Start-up

1. Turn down the total volume.
2. Turn down the zone volume.
3. Connect the stereo amplifier to the power supply and turn it on until the power indicator is lit.
4. Turn the total volume to the optimal level.
5. Adjust the zone volume to the desired output level. If wiring or installation needs changing, disconnect the power cord first.

2. Mic Broadcast

When MIC broadcast is conducted in any mode, the system detects the microphone's voice and mutes other audio sources. When the microphone has no signal, it automatically returns to the original playback state.

3. Bluetooth Mode

Press the MODE button until the digital screen displays Bluetooth. Open Bluetooth on your cell phone or other device and find the device named "6 ZONES AMP BT" for pairing. Music can then be streamed from the phone. When pairing is successful, the digital display will stop flashing. Wireless transmission distance is about 10m.

4. USB Mode

When a USB is inserted, the device automatically enters USB mode (plug and play). The interface displays the current playing song name, duration, playing mode, playing status, and volume level. In USB mode, a short press of the LOOP button switches playback modes: Random Play, Directory Loop, or Single Loop.

5. Line Mode

Press the MODE button until the digital screen displays AUX to enter Line Mode.

6. FM Mode

Press the MODE button until the digital screen displays FM to enter FM mode and begin playing radio programs. Refer to the "Front Panel" instructions for button descriptions (sections 20, 22, and 23).

• Searching radio stations: The FM band radio frequency range is 87.00MHz - 108.00MHz. Short press the button on the panel or remote control to search automatically from low to high frequency bands. Searched stations are stored starting with 1 for later recall.
• Calling radio stations: After searching and storing good radio channels, you can call and play them directly by pressing the number buttons "0-9" on the panel.

7. 6-zone Control Switch

Short press the FN button to enter the zone setting interface. Use buttons "1", "2", "3", "4", "5", and "6" to turn corresponding zones on or off. Press and hold the FN button for more than 1 second to open all zones. The indicator lights at the 6-zone volume adjustment knobs will display bright blue. Pressing FN again reverts to the previous state.

8. Adjust Volume of Audio Source

• Volumes for 6 zones, MIC1, MIC2, MIC3, LINE1, LINE2, and LINE3 can be adjusted directly using the corresponding volume knobs on the panel.
• For MIC4/LINE4, EMC, Chime, and SIREN volumes: long press the LOOP volume adjustment button to enter the volume setting interface. Short press the LOOP button again to select MIC4/LINE4, EMC, Chime, or SIREN alarm setting interfaces. Use the "V+/ V-" buttons to adjust the volume (0-32).
• For MP3 audio source (FM/AUX/USB/SD/Bluetooth) volume: in FM/AUX/USB/SD/Bluetooth mode, long press the "◀◀" or "▶▶" button to enter the MP3 volume settings interface. Use the "◀◀" or "▶▶" button to adjust the MP3 audio source volume level (0-32).

9. Phantom Power

Switch on the phantom power switch to provide phantom power (+48V) to all green terminal microphone inputs. It is not recommended for normal use but is suitable for MIC1, MIC2/LINE2, MIC3/LINE2, MIC4/LINE2.

Remote Controller

The remote controller includes the following keys:

• 1. Standby Switch
• 2. Mode Selection: Cycles through FM, USB, AUX, and BT modes.
• 3. MUTE button.
• 4. EQ Mode: Offers 4 optional sound effects.
• 5. Play Control Area: Includes Play/Pause, Previous/Next, and Volume Control.
• 6. Loop Mode: Cycles through Single Loop, Random Play, and Directory Loop.
• 7. Number Area: In FM mode, press numbers directly to enter stored FM frequencies.
• 8. Alternative Button

Specifications