Summary of Contents for Norden NVS-90170061MA
- Page 1 NVS-90170061MA / NVS-90180121MA / NVS-90010251MA / NVS-90190351MA 10 Input Mixer Amplifier with Equalizer User Manual...
- Page 2 Thank you for using our public address system. Please read this User Manual carefully to make better use of this equipment Attention This equipment is not waterproof. To prevent fire or electric shock, please do not place any liquid filled containers (such as vases or flowerpots) near the equipment or expose the equipment to dripping, splashes, rain, or moisture.
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Page 3: Table Of Contents
Contents 1. General Description..................3 1.1 Power Amplifier of PA Conference System.........3 1.2 Performance Features.................3 2. Brief Description of Product................4 2.1 Description of Front Panel..............4 2.2 Description of Rear Panel..............6 3. Operating Instructions..................7 3.1 System Connection Diagram……………..........7 3.2 Connection Diagram of Speaker………………………………………………………8 3.3 Equalizer Adjustment……………………............9 3.4 Selection of Channel…………………............9 3.5 Volume Control…………………….............9... -
Page 4: General Description
1.General Description 1.1 Power Amplifier of PA Conference System NVS Mixer amplifiers are a type of Public Address conference equipment’s that integrate the equalizing function, frequency shift function, front, and backstage amplification function. The products provide 4 audio source input ports, 6 microphone input ports, a line output port and 4 power amplifier’s output terminals, etc. -
Page 5: Brief Description Of Product
2. Brief Description of Product 2.1 Description of Front Panel (1) Power switch and power indicator Press down the power switch button to turn on the power, and the power indicator is lit when the power is turned on; If press down the power switch button again to pop up the switch, the power is turned off, and the power indicator is distinguished when the power is turned off. - Page 6 (6) Microphone 3 volume adjustment knob To adjust clockwise to increase the volume, and to adjust counter clockwise to decrease the volume. (7) Microphone 2 volume adjustment knob To adjust clockwise to increase the volume, and to adjust counter clockwise to decrease the volume.
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Page 7: Description Of Rear Panel
(16) Total volume adjustment knob Adjust clockwise to increase the volume and adjust counter clockwise to decrease the volume. That knob can also be used to control the chime output volume. (17) Chime output trigger button Touch it lightly once to trigger the chime output, and after the end of playing the tone signs of '1-3-5-i', it will stop automatically. -
Page 8: Operating Instructions
(8) 24V phantom power switch The microphone will have a 24V phantom power supply if the switch is turned to "ON," and the phantom power supply will be turned off if the switch is turned to "OFF." (9) Built-in cooling fan The working voltage is 12V. -
Page 9: Connection Diagram Of Speaker
3.2 Connection Diagram of Speaker Note: The four outputs are connected using the following methods: COM-P1, COM- 70V, and COM-100V. Only one set of output terminals can be connected, and the... -
Page 10: Equalizer Adjustment
speaker connected to COM-P1 cannot be linked to COM-70V and COM-100V; otherwise, the speaker may be burned. 3.3 Equalizer Adjustment The device features two output modes: EQ and Bypass, and the "EQUALIZER SWITCH" button on the front panel may switch between them. The gadget is in equaliser output mode when this button is pressed. -
Page 11: Microphone And Priority Function
"cross-head" screwdriver clockwise to increase volume and counter clockwise to decrease volume. The "MASTER" volume control knob will be invalid if the volume control knobs for each microphone, four channels, and the chime are all closed completely. The other volume control knobs are also invalid if the "MASTER" volume control knob is closed. -
Page 12: Matters Requiring Attention
• The device's working area must have adequate ventilation to avoid extreme temperatures during operation, which could cause harm to the equipment. • Please unplug the device from the power socket on rainy or wet days, or if it has been inactive for an extended period of time. •... -
Page 13: Performance Specifications
5. Performance Specifications Model 90170061MA 90180121MA 90010251MA 90190351MA Rated output power 120W 250W 350W Output voltage adjust From full load to no load, ≤3dB rate Minimum power emf Microphone ≤3mV (unbalance input) Microphone ≤3mV (balance input) LINE: ≤300mV Frequency response 80Hz -16KHz (±3dB) Total harmonic ≤0.5% (1 KHz, under normal working condition) - Page 14 CAUTION • When the power switch is "OFF", the machine is not completely disconnected from the power grid. For the sake of safety, please pull the power cord plug out of the socket when not using the equipment. • The equipment shall not be subject to water drops or splashes, and objects such as vases filled with water shall not be placed on the equipment.