How to fix a Denon SYS-391HT subwoofer (DSW-391) when the indicator doesn't light and there's no sound?
If the indicator light doesn't illuminate and no sound is produced when you turn on your Denon Speaker System subwoofer (DSW-391), the AC power plug might not be securely connected. Check the connection of the AC power plug to ensure it is properly inserted.
What to do if my Denon Speaker System subwoofer (DSW-391) indicator light is on, but there's no sound?
If the indicator light is on but no sound is coming from your Denon Speaker System subwoofer (DSW-391), there are a few potential causes. First, ensure all cables are securely connected. Also, check that the volume adjustment control isn't turned all the way down; adjust it to your desired level. Finally, the protective circuit might have been activated due to excess input or a temperature rise. In this case, turn the power switch to “OFF,” wait at least one minute, and then turn it back to “ON”. If the problem continues, unplug the power cord.
Why is the sound distorted on my Denon SYS-391HT subwoofer (DSW-391)?
Sound distortion on your Denon Speaker System subwoofer (DSW-391) can occur if the volume level is too high. Try turning the volume adjustment control counterclockwise to reduce the volume. Also, the sound might be distorted on the connected amplifier. Avoid amplifying the bass sound on the amplifier by lowering the amplifier's bass adjustment control or volume.
How to stop oscillation (loud continuous sound) on Denon Speaker System subwoofer (DSW-391)?
Oscillation, which manifests as a loud continuous sound, in your Denon Speaker System subwoofer (DSW-391) can be due to the volume of either the subwoofer or the amplifier being set too high. Try lowering the volume on both devices to resolve this issue.
Why doesn't the volume adjust in sync with the amplifier on my Denon SYS-391HT?
If the volume of your Denon Speaker System subwoofer doesn't adjust in sync with the amplifier, it might be connected to the wrong terminal. Ensure the subwoofer is connected to the amplifier’s SUBWOOFER PREOUT connector, not to terminals with a set output level.
Essential safety guidelines for operating the equipment safely.
Recommendations for optimal speaker positioning for sound quality and ventilation.
Details on the components included with the speaker system.
List and identification of all supplied accessories.
Important preliminary information and considerations before first use.
Instructions for placing speakers on stands using anti-slip pads.
Guidance on mounting speakers using keyhole hooks or brackets.
Guidelines for moving, cleaning, and handling speakers with additional warnings.
Identification and description of the rear panel connectors and controls.
How to connect the SC-F391, SC-C391, and SC-R391 speakers to an amplifier.
Step-by-step guide for securely connecting speaker cables.
Connecting the subwoofer to the amplifier's pre-out connector.
Instructions for safely connecting the power cord to the unit and outlet.
Basic operation of the subwoofer, including power and volume adjustments.
General| Type | Home Theater Speaker System |
|---|---|
| Speaker Configuration | 5.1 |
| Satellite Speakers | 4 |
| Center Speaker | 1 |
| Subwoofer | 1 |
| Subwoofer Type | Active |
| Satellite Speaker Frequency Response | 120Hz - 20kHz |
| Center Speaker Frequency Response | 120Hz - 20kHz |
| Impedance | 8 Ohms |
| Satellite Speaker Impedance | 8 Ohms |
| Center Speaker Impedance | 8 Ohms |
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