OSD NERO DUAL X8 - Subwoofer Manual

Unpacking

Open the box and carefully remove all staples, then remove subwoofer.
If you notice any defects on any elements during the unpacking process, contact your dealer.
Before disposing the packaging, check that nothing is left inside.

Installation Precautions

Before installing

Before connecting your subwoofer, make sure all equipment is switched off. Do not connect the subwoofer power supply cable before completing all connections.

Moving the unit

Always disconnect the power supply cable and any audio cables connected to the subwoofer before moving it. This will prevent a short circuit or damage to any plugs or connecting cables.

Before switching the unit on

Double check that all connections are correct and that the volume is turned all the way down.

Placement

Place the subwoofer in a cool area with sufficient ventilation. Avoid placing in damp area or areas exposed to excessive sunlight or heat.

Recycling

Your product contains valuable materials that can be recovered and recycled.

Features

World Class Digital Amplifier Technology

The NERO Dual X8 powered subwoofer incorporates the latest digital amplifier technology to maximize performance while generating very little heat. In standby mode, the unit consumes less that 0.5 watts, making it one of the greenest solutions available.

Tuned System Performance

Rear mounted volume control, low pass crossover, and phase control ensure optimal system integration.

Signal Sensing

When Auto Signal Sense is selected the subwoofer will automatically switch to a power saving stand-by mode if no input signal is detected for approximately 15 minutes. Power will turn on once again when signal is detected through the input jacks.

Gold Plated Inputs

For high quality sound and maximum performance.

Cabinet

An attractive furniture quality solid cabinet provides the foundation for high sound quality and clarity.

Subwoofer Placement

A subwoofer provides crucial impact to a home theater system. Low bass frequencies are omni directional, this means you can usually place your subwoofer just about anywhere in your home theater room with good results.

Connection & Controls

1. Power LED
   (Red) Standby Mode - (Blue) Power Mode ON
2. Low Level Input
   Use for Left/Right connection from audio source.
3. Volume Control
   Adjusts subwoofer volume level.
4. Crossover Control
   Adjusts the subwoofers frequency output
5. Phase Switch
   Allows you to set the phase of the woofer 0-180°
6. Power Mode Switch
   Set the power mode ( OFF, AUTO, or ON )
7. Voltage Switch
   Select input voltage. Default: 110-120V or 220-240V
8. Master Power Switch
   Controls the main power to the subwoofer
9. AC Power Cord
   Connect the included AC power cord.
10. Fuse Holder
    Master Power Fuse. Includes spare fuse inside holder.

Setting & Controls

Setting the Power Mode

ON Mode:
If the subwoofer is set to ON mode, it will always be ready to play. However, undesired noise from interference or connections changing may be heard. Use the standard ON mode only if needed, set the power switch to OFF when not in use.

AUTO Mode:
Setting the switch to AUTO enables AUTO Sense. The subwoofer turns ON and OFF automatically in response to signal input. The subwoofer will enter standby mode if no signal is sensed for longer than 15 minutes.

Set the MODE switch to the ON position for setup.

After making all the connections, setup your subwoofer using the following steps:

1. Plug the subwoofer into an electrical outlet using the included power cord. The status LED will illuminate solid blue when power is present and the subwoofer is ON.
2. Set the controls and switches to their initial setup positions:
   
   VOLUME set the dial to 50% or 12 o'clock
   
   CROSSOVER adjust the upper frequency limit. The purpose is to control the overlap the upper frequencies of the subwoofer and the main speakers lower frequencies. Check your main speakers specs to determine their low-end limit.
   
   PHASE set to 0°
   
3. Play a movie scene or soundtrack and set the system volume to an average level. Listen to the bass level from your favorite listening position and adjust the volume accordingly.
   
4. Continue listening to your favorite source track and experiment with the phase control until you find the best setting for you. Depending on the location of the subwoofer the bass may sound louder and deeper when the phase has been optimized. In some cases adjusting the phase will have no audible difference.
   
5. Setup is now complete.

Trouble Shooting

The NERO Dual X8 is designed to function trouble free. Most problems that may occur are due to simple issues. Please check below for a list of simple fixes if you experience any issues.

Ensure that the Status LED is blue and the power switch is ON.

No Sound

1. Verify that audio is coming form the source selected. Select another source to test, or connect the source directly to the subwoofer input bypassing any other equipment.
2. Ensure that any connected A/V equipment is turned ON and connected properly.
3. Check cable connections for damage, poor connection or shorts.
4. Ensure subwoofer volume is turned up to a reasonable level using the control on the back of the unit.

Interference or undesired noise coming from subwoofer:

1. Check all connections for damage, poor connection or shorts.
2. If the signal cable is installed inside of the wall, it may be running parallel to a high voltage cable. Test the system by running a separate in room cable. If the issue is resolved, a new cable should be installed with the proper clearance from high voltage.
3. Common sources of interference include Wi-Fi antennas and devices or cordless phones setup too close to the subwoofers source.

Cleaning & Maintenance

The exterior of the subwoofer may be cleaned using a soft lint free cloth. If the subwoofer is moved often for cleaning or relocation, check each time to ensure that connections are not damages or loose.

Specifications

Documents / Resources

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download OSD NERO DUAL X8 - Subwoofer Manual