NERO XA5180 Home Theater Amplifier
Owner’s Manual

NERO XA5180 HOME THEATER
AMPLIFIER
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OWNER’S MANUAL

IMPORTANT SAFETY PRECAUTIONS

This manual contains important instructions for the safe operation of the unit. Read and follow the safety instructions and all other instructions. Keep the manual for future reference. Make sure that it is available to all those using the device. If you sell the unit, please make sure that the buyer also receives this manual.

• Use only an approved power cable and plug or distribution board to connect your amplifier to a power outlet. Do not use an extension cable.
• Never touch the mains plug if your hands are wet.
• Do not attempt to open the equipment. Refer servicing and repair to qualified service personnel. Touching live components inside the case can result in a fatal electrical shock!
• Read the Owner’s Manual and Safety Precautions before operating the equipment.
• Keep this Manual in a safe place so that you can refer to it later.
• Please heed all warnings on the equipment itself and in the Owner’s Manual.
• Please follow the instructions contained in your Owner’s manual and never use this equipment for any purpose other than is explained in this Owner’s Manual.
• Only connect this equipment to a power source of the type described in the Owner’s Manual and specified for this equipment.
• Make sure that there is adequate ventilation around the equipment to allow proper cooling. Keep the equipment away from direct sunlight. Avoid installing the unit close to sources of heat or in spaces such as bookshelves or cupboards where heat radiation may be obstructed. Avoid excessive temperatures in the room, as these could ultimately damage sensitive components and reduce the service life of your player.
• Never use the unit in damp rooms, at temperatures below 15°C, or in the open air. When bringing your amplifier in from the cold, allow it time to achieve room temperature before plugging it in.
• Always switch the unit off before removing or inserting interconnects. Doing this with the amplifier switched on can damage not only the amplifier itself but also the equipment connected to it.
• If you ever spill water or any other liquid onto the equipment: Do not touch the case! Remove the plug from the wall outlet and contact your dealer or our service department.
• Never remove the earth connection from the plug. It is there to ensure your safety.
• Arrange the power cable so that no one can accidentally stand on it. Avoid locating it under objects that might put pressure on the cable. Pay particular attention to areas where the cable exits from plugs, AC outlets, and from the unit itself.
• Never operate the unit without being present. Disconnect the plug from the wall outlet and remove all aerial connections (including cable aerials) when: you clean the unit, you do not expect to use the unit for long periods of time, during an electrical storm.
• If you have an external antenna or cable antenna connected to your hi-fi system, we recommend that you use a signal isolating filter to avoid interference or damage during thunderstorms.
• Problems: If you lose the sound while the amplifier is operating, or if you notice smoke or burning, switch the unit off immediately and contact your dealer or our service department.
• Only replace defective fuses after you have traced and removed the cause of the fault and then only with a fuse of the same rating. Remove the mains plug before changing fuses. Use an insulated screwdriver to remove and replace the fuse.
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CAUTION
You are cautioned that any changes or modifications not expressly approved in this manual could void your authority to operate this equipment. Properly shielded and grounded cables and connectors must be used for connection to host computers and/or peripherals in order to meet FCC emission limits. To reduce the risk of electric shock, the speaker cable should be connected to the apparatus and the speakers in accordance with the following instructions.
DO NOT defeat the safety purpose of a grounding or polarized plug by removing ground pins or using unsafe
adapters. A polarized plug has two blades – one wider than the other. A grounding plug has a third ground prong in addition to the two main conductors. The wide blade or third grounding prong is provided for your safety. If the provided plug does not fit your outlet, consult an electrician to replace your obsolete outlet. If you replace the power cord, only use one of similar type and equal or greater current rating.
For Class II apparatus only: This symbol means that the equipment is a Class II or double insulated electrical appliance. It has been designed in such a way that it does not require a safety connection to electrical earth. When servicing use only identical replacement parts installed by an instructed person or with use of ready-made leads or cords.

WARNING SYMBOLS

TYPE OF DANGER: Warning – Danger Zone
T YPE OF DANGER : Warning – High Voltage
DANGER
Hazardous Voltage
Hazardous voltage may be present at cable ends and screw terminals. The connection of screw terminals as well as all maintenance and repair work on the electrical installation of the device must only be performed by qualified electrical personnel in volt-free condition. Failure to do so may result in electric shock and risk of fire and loss of life. By all means, you have to observe all electrical safety instructions applicable at the place of operation.
DANGER
Electric shock caused by short-circuiting
Always use proper ready-made insulated mains cabling (power cord) with a protective contact plug. Do not modify the mains cable or plug. Failure to do so could result in electric shock/death or fire. If in doubt, seek advice from a registered electrician.
This product has been tested by ETL and has been found to be complying with:

• UL 60065, Second Edition, “Standard for Audio/Video and Musical Instrument Apparatus for Household, Commercial, and Similar General Use”
• CSA C22.2 No. 60065-03, First Edition: 2006 “Audio, Video and Similar Electronic Equipment”

1. Disconnect the AC power cord from the MAINS.
2. Strip 10 to 15 mm of the wire insulation of the speaker cable.
3. Connect the speaker cable to the apparatus and the speakers carefully so as not to touch the core of the speaker cable by hand. Also, disconnect the AC power cord from the MAINS before disconnecting the speaker cable from the apparatus and the speakers.

REAR PANEL

A. Audio Inputs (see page 4)
Inputs for connecting the XA Amplifier to the outputs of a surround processor, preamplifier AV receiver with pre-out connection, DVD player with discrete 5 channel output, or HDTV with built-in surround decoder.
B. Remote Trigger Input (see page 5)
Power On/Off using the 8-24v signal from a connected device, such as AVR, control system or processor.
C. ON/Trigger Power Switch
In ON position: the Power button on the front panel acts as the main AC switch, turning the XA Amp on and off
In the TRIGGER position: the XA can be turned on and off remotely by a device connected to the REMOTE TRIGGER  jack. In this mode, the LEDs on the front panel will glow yellow when the amplifier is in standby mode, and bright blue when powered on.
D. Speaker Outputs (see page 4)
Use these 5-way binding posts to connect the XA Amp to your speakers. Works with – speaker cable with bare wire (solid or stranded), spade lugs, or banana plugs.
E. AC Fuse
Protects in case of a power surge.
F. AC Input
Connects XA Amplifier to an AC power source with the supplied power cord (see precautions on page 2).
IMPORTANT NOTE: Before Attempting to connect any Jacks into any power amplifier verify that the power amplifier is turned off And/or disconnected form AC power. Failure to do so can potentially result in severe damage to your amplifier & loudspeakers

SPEAKER & INPUT CONNECTIONS

Connecting your speakers:
Use Class 2 wiring for speaker connections. Wiring the speaker connector with bare wire:

1. Strip the insulation off each speaker wire to expose 3/8″ (10 mm) of the bare conductor.
2. Unscrew the output terminal binding post several twists, and insert each wire into the correct terminal.
3. Tighten the binding post by twisting clockwise until it is firmly clamping the speaker wire.
4. For spades or banana plugs, simply insert incorrect terminals.
5. Ensure + terminal goes to + terminal of speakers and ­ goes to ­ do this by checking the marking on the speaker wire. Usually, the RED wire is +

Warning: While the amplifier does self-protect under most improper output conditions, misconfiguration of loudspeaker mode and incorrect connection of loudspeakers could damage connected loudspeakers and/or amplifiers. Please refer installation to a qualified installation professional, and always check state and local electrical codes when installing.
Auto Power ON:
To use another device with a 12-volt trigger output jack to automatically power on the XA:

1. Select Trigger position.
2. Connect a 3.5mm mono jack from the trigger-output jack of the source device to the REMOTE TRIGGER jack When the switch is set to TRIGGER, then goes into standby mode, and the front panel LEDs glows yellow.

When the connected device is turned on the status LEDs glow bright blue. If you set the MANUAL/TRIGGER switch to Trigger, but don’t connect the XA Amp to another device, the status LEDs will be bright blue, but the amplifier will not respond if you press the power button.

AMPLIFIER OPERATION AND MAINTENANCE

Before you begin:
Ensure that the amp is plugged into a 15 Amp power socket. At full power, the amp will require in excess of 10 Amps. Ensure the amp has air clearance with nothing covering the ventilation slots. 6 inches of clearance is recommended, or, if rack mounted, please use a cooling fan.
Double-check all connections from connected processors or AVRs, and connections to speakers. Make sure all connections are good and that there are no stray wires, or strands of wire.
Tip – If speaker wires are running through walls or ceiling, you can check that the speaker wires are connected correctly by taking a 9V battery and momentarily touching the speaker wire to the + and ­ terminals. If the speakers are connected there will be a small `popping’ sound. Turn the volume level of the connected Processor or AVR down to zero for all channels.
Power-On – Normal Operation
Press the front panel power button. After a short pause the front panel LED indicators will light-up.

Individual channel, power status indicators

Front Panel Status LEDs
Power: Bright Blue…………..
Standby: Yellow…………………….
Protection: Red………………….
Power : Blue Lights ­ The amp is on and working correctly
Standby: Yellow/Orange light ­ The amp is in standby mode, no signal to speakers, no sound.
Protection:
Red Light ­ The amp has automatically detected a problem and is in protection mode to prevent damage to speakers. Turn the amp off, unplug and check speaker connections for short circuits (positive and negative wires touching).
Power-on – auto signal detecting mode
Press the front panel power button. After a short pause, the front panel LED indicators will light up. When the rear panel switch is set to SIGNAL the front panel indicator lights will be Yellow/Orange if there is no signal from the connected Processor or AVR. When a signal from any channel is present the indicator lights for that channel will turn to Blue and the speaker will play that signal.
Power-on ­ Trigger
Press the front panel power button. After a short pause, the front panel LED indicators will light up. When the rear panel switch is set to TRIGGER the front panel indicator lights will be Yellow/Orange and the amp will be in Standby mode. When a TRIGGER signal is present the amp will turn on and the indicator lights will be Blue. The amp will stay on as long as there is a TRIGGER signal present. When the TRIGGER signal is removed, the amp will return to Standby and the front panel indicator lights will go to Yellow/Orange.
To turn it Off
Press the power button on the front panel, all lights will turn off.
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AMPLIFIER OPERATION AND MAINTENANCE
Maintenan ce
If the amp requires cleaning, wipe with a clean, dampened soft cloth. Wipe dry immediately with a dry cloth. NEVER use benzene, thinner, alcohol or any other volatile cleaning agents. Do not use abrasive cleaners, as they may damage the paint. Do not expose the amp to insecticide, waxes, polishing agents, or an aerosol spray as moisture may enter the amp.
Service Information
Should you encounter any problems with your XA amplifier please reset the power by switching off and unplugging the amp. Re-check all connections from Processors or AVR’s and to the speakers. Turn on the amp again and refer to the `Amplifier Operation and Maintenance instructions. If a problem still exists, contact OSD Nero’s customer service department at OSDAUDIO.COM.

Performance Specs

OUTPUT POWER (RMS) (UNIT: W) @1% THD   (SINGLE CHANNEL)| 4 Ohms| AMP 1| AMP 2| AMP 3| AMP 4| AMP 5
---|---|---|---|---|---|---
OUTPUT POWER (RMS) (UNIT: W) ,@5% THD  (SINGLE CHANNEL)| 4 Ohms| 320| 320| 320| 320| 320
OUTPUT POWER (RMS) (UNIT: W) @1% THD (SINGLE CHANNEL)| 8 Ohms| 410| 410| 410| 410| 410
ALL CHANNEL OUTPUT POWER (RMS) (UNIT:W) @0.1% THD| 8 Ohms| 190| 190| 190| 190| 190
ALL CHANNEL OUTPUT POWER (RMS) (UNIT:W) @1% THD| 8 Ohms| 135| 135| 135| 135| 135
THD @1W (UNIT:%)  (SINGLE CHANNEL)| 8 Ohms| 150| 150| 150| 150| 150
THD @RATED POWER (UNIT:%) (SINGLE CHANNEL)  130W| 8 Ohms| 0.02%| 0.02%| 0.02%| 0.02%| 0.02%
THD @1W (UNIT:%)  (SINGLE CHANNEL)| 4 Ohms| 0.03%| 0.03%| 0.03%| 0.03%| 0.03%
THD @RATED POWER (UNIT:%) (SINGLE CHANNEL) @250W| 4 Ohms| 0.05%| 0.05%| 0.05%| 0.05%| 0.05%
FREQUENCY RESPONSE @-3dB – Hz| 1W| 0.03%| 0.03%| 0.03%| 0.03%| 0.03%
Rated power| 7.5HZ-80K| 7.5HZ-80K| 7.5HZ-80K| 7.5HZ-80K| 7.5HZ-80K
SIGNAL TO NOISE (A-weighted) (UNIT:dB) Stereo mode, @1K/100Hz @1% THD, XLR input| 8 Ohms| 7.5HZ-80K| 7.5HZ-80K| 7.5HZ-80K| 7.5HZ-80K| 7.5HZ-80K
DAMPING FACTOR rated power| 1 kHz| 104| 104| 104| 104| 104
IDLE CURRENT – Amps| 0.15| 150| 150| 150| 150| 150
MAX.CURRENT @ALL CH. At rated power – Amps| 10.7| | | | |
EFFICIENCY OF AMPLIFIER – %| 72%| | | | |

General Specs

WARRANTY

OSD Audio electronics have (2) year Limited Warranty against defects in materials and workmanship. Proof of purchase must accompany all claims. During the warranty period, OSD Audio will replace any defective part and correct any defect in workmanship without charge for either parts or labor.
OSD Audio may replace returned electronics with a product of equal value and performance. In such cases, some modifications to the mounting may be necessary and are not OSD Audio’s responsibility.
For this warranty to apply, the unit must be installed and used according to its written instructions. If necessary, repairs must be performed by OSD Audio. The unit must be returned to OSD Audio at the owner’s expense and with prior written permission. Accidental damage and shipping damage are not considered defects, nor is damage resulting from abuse or from servicing performed by an agency or person not specifically authorized in writing by OSD Audio.
OSD Audio sells products only through authorized dealers and distributors to ensure that customers obtain proper support and service. Any OSD Audio product purchased from an unauthorized dealer or another source, including retailers, mail order dealers, and online sellers will not be honored or serviced under the existing OSD Audio warranty policy. Any sale of a product by an unauthorized source or in another manner not authorized by OSD Audio shall void the warranty on the applicable product.
Damage to or destruction of components due to the application of excessive power voids the warranty on those parts. In these cases, repairs will be made on the basis of the retail value of the parts and labor. To return for repairs, you must email customer service at RMA@audiogeargroup.com for a Returned Merchandise Authorization (RMA) number then the unit must be shipped to OSD Audio at the owner’s expense, along with a note explaining the nature of service required. Be sure to pack the product(s) in a corrugated container with at least 3 inches of resilient material to protect the unit from damage in transit.
This Warranty Does Not Cover Damage caused by abuse, accident, misuse, negligence, or improper operation (installation) · Any products that have been altered or modified · Any product whose identifying number of decals, serial

, etc. has been altered, defaced or removed · Normal wear and maintenance.

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OSD Audio | Brea, CA. | osdaudio.com
7/29/22 12:01 PM

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