Sub 18S - Subwoofer DYNAUDIO - Free user manual and instructions
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| Product Type | Active Subwoofer |
| Woofer Size | 18" (460 mm) |
| Amplifier Power | 500 W RMS (Class D) |
| Frequency Response | 16 Hz – 230 Hz (±3 dB) |
| Maximum SPL | 121 dB |
| Crossover Frequency | Adjustable, 30–230 Hz |
| Phase Adjustment | 0° / 180° |
| Inputs | XLR (balanced), RCA (unbalanced) |
| Outputs | XLR pass-through |
| Auto On/Off | Yes, with threshold adjustment |
| Cabinet Type | Sealed |
| Dimensions (H x W x D) | 670 x 600 x 600 mm |
| Weight | 55 kg |
| Power Supply | 100–240 V AC, 50/60 Hz |
| Standby Power Consumption | < 0.5 W |
| Finish | Black Satin |
| Grille | Removable, magnetic |
| Room Optimization | Manual EQ, DSP presets |
| Maintenance | Wipe with dry cloth; do not use solvents |
| Safety Features | Overcurrent, overtemperature, DC protection |
| Spare Parts Availability | Contact Dynaudio or authorized service |
| Repairability | Modular amplifier unit, serviceable |
| Warranty | 5 years (limited) |
Frequently Asked Questions - Sub 18S DYNAUDIO
What is the recommended placement for the Sub 18S?
Place the subwoofer in a location where it can provide even bass coverage. Avoid corners unless you want increased bass output. The subwoofer should be at least 30 cm away from walls. Fine-tune placement using the room optimization features.
How do I connect the Sub 18S to my system?
Use balanced XLR cables if your preamp or AV receiver supports them; otherwise, use RCA cables. Connect the LFE output to the subwoofer's LFE input if available. Set the crossover frequency on the subwoofer to match your main speakers. Ensure the phase is set correctly (0° or 180°) for seamless integration.
How do I adjust the crossover frequency?
The crossover frequency is adjustable from 30 Hz to 230 Hz. Use the control knob on the back panel. Start with a setting around 80 Hz for typical home theater or 50 Hz for music with large speakers. Listen to music and adjust until the bass blends naturally.
What does the phase switch do?
The phase switch sets the polarity of the subwoofer driver. At 0°, the driver moves outward when the signal goes positive; at 180°, it moves inward. Use the setting that results in the loudest, most solid bass at your listening position. This ensures the subwoofer is in phase with your main speakers.
How do I enable auto on/off?
The auto on/off function is enabled by default. The subwoofer powers on when it detects a signal and switches to standby after about 30 minutes of inactivity. You can adjust the sensitivity threshold using the Auto On control. For constant operation, set it to 'On'.
What is the maximum power consumption?
The Sub 18S consumes up to 600 W under maximum load. In standby mode, it consumes less than 0.5 W. Ensure the power cord is rated for at least 10 A and connect to a proper grounded outlet.
How should I clean the subwoofer?
Unplug the subwoofer before cleaning. Use a soft, dry cloth to wipe the cabinet and grille. For stubborn dirt, dampen the cloth with water and mild soap. Do not use abrasive cleaners or solvents. Replace the grille carefully after cleaning.
What spare parts are available for the Sub 18S?
Spare parts include the amplifier module, driver, input board, and power supply. Contact Dynaudio support or an authorized dealer for replacement parts. The amplifier module is user-removable for service.
How can I improve bass response in a difficult room?
Use the room optimization features including the built-in DSP presets and manual EQ. Experiment with placement, especially near a wall or corner if you need more output. A measurement microphone and REW software can help you identify problem frequencies and apply parametric EQ.
Is the Sub 18S suitable for both music and home theater?
Yes, the Sub 18S is designed for high-performance bass in both stereo music and multichannel home theater systems. Its low distortion and high output cleanly reproduce deep bass for movies and musical details. Adjust the crossover and phase for your specific setup.
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USER MANUAL Sub 18S DYNAUDIO
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Product information
Brand : DYNAUDIO
Model : Sub 18S
Category : Subwoofer