Dynaudio SUB 300 User Manual (English)

Questions and Answers:

J
jamie05Jul 29, 2025
What to do if my Dynaudio SUB 300 Subwoofer responds intermittently to remote control commands?
- P
  Paul GardnerJul 29, 2025
  If your Dynaudio Subwoofer is responding intermittently to remote commands, it might be due to a weak battery in the remote control. Try replacing the battery. Also, make sure there isn't anything blocking the line of sight between the remote and the subwoofer's remote receiver (either on the front or back panel). Avoid placing the subwoofer in strong direct sunlight.
N
nicole35Aug 2, 2025
What to do if I cannot store a setting on my Dynaudio Subwoofer?
- S
  Sharon McneilAug 2, 2025
  If you're unable to store a setting on your Dynaudio Subwoofer, check the Preset Settings switch. If it's set to 'Protect', switch it to 'Store'.
A
Amy PattersonAug 6, 2025
What to do if my Dynaudio Subwoofer is on but there is no sound?
- J
  James JohnsonAug 6, 2025
  If your Dynaudio Subwoofer is on but producing no sound, there are several potential causes. First, ensure all signal cables are properly connected. Next, check the bass-management settings on your processor or receiver to confirm that the 'subwoofer' is enabled. Also, verify that the subwoofer volume level hasn't been turned down completely on either the processor/receiver or the subwoofer's remote control. If it has, carefully and gradually increase the volume level on both.
M
mark78Aug 10, 2025
Why won't my Dynaudio Subwoofer switch on at all?
- W
  weaverjamesAug 11, 2025
  If your Dynaudio Subwoofer isn't switching on, make sure the AC mains cable is securely connected and that the mains switch on the rear panel is switched to 'On'. Also, ensure that all signal cables are connected properly.
D
Deborah MorganAug 15, 2025
Why won't my Dynaudio Subwoofer switch on automatically?
- S
  Steven ColonAug 15, 2025
  If your Dynaudio Subwoofer isn't switching on automatically, it could be due to a couple of reasons. First, check that a signal is present on the subwoofer’s inputs. The status LED should not be red. Second, ensure the subwoofer hasn't been set to temporary manual On/Standby switching. To revert to automatic mode, check if all signal cables are connected properly and if the subwoofer output on the source is engaged. Briefly press the green 'I' button on the remote control to switch back to automatic On/Standby. The subwoofer will switch on, and the MANUAL mode LED will turn off.
J
Jared CochranAug 19, 2025
Why does my Dynaudio SUB 300 switch itself off when music is playing?
- B
  Brenda HaydenAug 20, 2025
  Your Dynaudio Subwoofer might be switching off during music playback because there's not enough low-frequency signal in the audio. This often happens with music or movies that don't have very deep bass. The subwoofer should switch back on automatically when it detects low-frequency signals. You can also use the temporary manual On by briefly pressing the green I button on the remote control.
C
Christopher ParkerAug 25, 2025
How to make my Dynaudio SUB 300 switch to standby automatically?
- X
  xchambersAug 25, 2025
  If your Dynaudio Subwoofer is not switching to standby automatically, it might have been set to temporary manual On/Standby switching. To return to automatic mode, briefly press the red 'O' button on the remote control. This will cause the subwoofer to switch to Standby, and the MANUAL mode LED will turn off.

Dynaudio SUB 300 Specifications

General

Type	Active subwoofer
Crossover Frequency	50 Hz - 150 Hz
Driver Size	12 inches
Inputs	LFE
Outputs	Line-level RCA

Summary

Dear Music Lover

Important Safety Instructions

Safety Signs and Symbols

Explanation of warning signs and symbols used in the manual to convey important information.

Signal Words

Defines the meaning of signal words like CAUTION and WARNING for safety.

About This Operating Manual

Used Signs and Symbols

Explains the meaning of signs and symbols used throughout the operating manual.

Unpacking the Subwoofer

Grille Installation

Instructions for attaching and removing the front baffle grille.

Controls and Connections

Subwoofer Back Panel Controls

Details the functions of connectors and switches on the subwoofer's rear panel.

Remote Control Functions

Explains the buttons and functions available on the DSC 1 remote control.

Connecting the Subwoofer

Master and Slave Mode Operation

Describes how to configure the subwoofer for Master or Slave operation in multi-subwoofer systems.

Connecting a Single Subwoofer

Step-by-step guide for connecting a single subwoofer to a processor or receiver.

Connecting Multiple Subwoofers

Instructions for daisy-chaining multiple subwoofers using Master/Slave configuration.

Connecting Using XLR Sockets

Guidance on using balanced XLR connections for enhanced signal integrity.

Operating the Subwoofer

Fitting the Remote Control Battery

Instructions for inserting or replacing the battery in the DSC 1 remote control.

Switching the Subwoofer On and Off

Details on powering the subwoofer on/off using the back panel switch and remote control.

Manual On/Standby Mode

How to manually set the subwoofer to permanent On or Standby, overriding automatic mode.

Changing the Volume Level (LEVEL)

Adjusting the subwoofer's volume using the remote control's LEVEL buttons.

Setting the Crossover Frequency

How to select the crossover frequency for optimal integration with main speakers.

Activating Bass Extension (EXT)

Enabling or disabling the low frequency extension for enhanced bass response.

Setting the Phase (PHASE)

Adjusting the subwoofer's phase setting (0°, 90°, 180°, 270°) for optimal timing.

Storing and Recalling Presets

How to save and recall custom settings (volume, crossover, phase, EXT) using presets.

Positioning and Optimizing

Understanding Room Modes

Explanation of how room acoustics affect bass response and how to mitigate issues.

Subwoofer Placement Strategies

Guidance on optimal placement locations like corners, walls, and free-standing positions.

Multiple Subwoofer Placement

Tips for positioning multiple subwoofers to achieve even bass response.

Finding the Correct Settings

Adjusting Volume Level

How to set the subwoofer volume relative to main speakers for homogenous sound.

Setting Crossover Frequencies

Matching subwoofer and main speaker frequency responses for optimal sound quality.

Using Bass-Management Systems

How to integrate the subwoofer with AV receivers' bass-management features.

Using with Full-Range Loudspeakers

Selecting crossover settings when main speakers handle a full range of frequencies.

Setting the Phase

Adjusting the subwoofer's phase to ensure optimal timing and bass integration.

Troubleshooting Common Issues

Subwoofer Not Functioning Properly

Diagnosing and resolving common issues like auto-shutoff, remote unresponsiveness, or failure to power on.

Troubleshooting: Power and Sound Issues

Resolving problems related to automatic power, standby, preset storage, and lack of audio output.

Changing the Fuse

Resetting to Factory Defaults

Procedure to restore the subwoofer's settings to their original factory configuration.

Technical Specifications

Subwoofer Model Specifications

Detailed technical data for the Dynaudio Sub 300 and Sub 500 models.

Warranty Information

Related product manuals

Dynaudio SUB 300 User Manual

Table of Contents