1. Introduction
The Definitive Technology Dymension DM80 is a flagship tower speaker designed to deliver high-fidelity audio for home theater systems. It features fully balanced, adjustable bipolar arrays, four 5.25-inch BDSS mid/bass woofers, and a built-in 12-inch powered subwoofer with 3XR Architecture. This manual provides essential information for the proper setup, operation, and maintenance of your DM80 speaker.
Image 1.1: Front view of the Definitive Technology Dymension DM80 Flagship Tower Speaker.
2. Safety Instructions
- Read all instructions before operating the speaker.
- Retain this manual for future reference.
- Do not expose the speaker to moisture, rain, or extreme temperatures.
- Ensure proper ventilation around the speaker to prevent overheating.
- Disconnect the power cord during lightning storms or when unused for long periods.
- Refer all servicing to qualified service personnel.
- Do not block any ventilation openings.
- Use only attachments/accessories specified by the manufacturer.
3. Unpacking and Package Contents
Carefully remove the speaker from its packaging. Inspect for any damage during transit. If any damage is observed, contact your dealer immediately.
Package Contents:
- Definitive Technology Dymension DM80 Tower Speaker (1 unit)
- Cabinet foot spikes/pads
- Power Cord
- User Manual (this document)
4. Setup
4.1 Speaker Placement
Optimal placement of the DM80 speakers is crucial for achieving the best sound performance. The DM80 features fully balanced bipolar arrays that can be adjusted to optimize for room placement.
- Stereo Setup: Place the speakers equidistant from your primary listening position, forming an equilateral triangle.
- Home Theater Setup: Position the DM80s as your front left and right channels. Ensure they are placed symmetrically relative to your display.
- Near-Wall Placement: If placing the speakers close to a wall, utilize the rear-array attenuation switch located on the back panel to adjust the output and prevent excessive bass buildup.
- Leveling: Use the included cabinet foot spikes or pads to level the speaker on any floor surface, ensuring stability and optimal acoustic coupling.
Image 4.1: Example of DM80 speaker placement in a home environment.
4.2 Connections
Before making any connections, ensure all audio equipment is turned off and unplugged from the power outlet.
- Speaker Wire Connection: Connect your amplifier's speaker outputs to the corresponding binding posts on the DM80. Ensure positive (+) terminals are connected to positive and negative (-) to negative for correct phase.
- Power Connection: Plug the included power cord into the AC inlet on the back of the speaker, then into a wall outlet. The integrated 12-inch powered subwoofer requires power.
- Optional DM90 Height Module: For Dolby Atmos/DTS:X overhead effects, the DM80 is compatible with the DM90 Height Module (sold separately). Refer to the DM90 manual for installation and connection instructions.
Image 4.2: Rear panel connections and controls of the DM80 speaker.
5. Operating Instructions
Once properly set up and connected, your DM80 speaker is ready for use.
- Power On/Off: The speaker will typically power on automatically when an audio signal is detected. A power switch may also be present on the rear panel.
- Intelligent Bass Control: The patented Intelligent Bass Control system blends the subwoofer output seamlessly with the midrange and high frequencies, providing deep bass performance without overpowering the overall sound.
- Linear Response Waveguide: The patented Linear Response Waveguide extends off-axis dispersion, contributing to a wide and immersive soundstage.
- Volume Control: Adjust the overall system volume using your amplifier or receiver. The integrated subwoofer's volume can often be fine-tuned via a control on the speaker's rear panel or through your receiver's settings.
6. Maintenance
- Cleaning: Dust the speaker cabinet with a soft, dry cloth. Avoid using abrasive cleaners, solvents, or strong detergents, as these can damage the finish.
- Grille Care: The speaker grilles can be gently vacuumed with a soft brush attachment to remove dust.
- Avoid Liquids: Do not spill liquids on the speaker. If liquid enters the cabinet, immediately disconnect power and contact qualified service personnel.
- Environmental Conditions: Keep the speaker away from direct sunlight, heat sources, and excessive humidity.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from speaker |
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| Distorted or unclear sound |
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| No bass or weak bass |
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| Red light blinking on rear panel |
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8. Specifications
| Feature | Detail |
|---|---|
| Model Name | DM80 |
| Speaker Type | Tower, Bipolar |
| Mid/Bass Woofers | 4 x 5.25-inch BDSS |
| Subwoofer | Integrated 12-inch powered subwoofer |
| Subwoofer Amplifier Power | 400 Watts (GaN FET) |
| Passive Radiators | 2 x 3XR-optimized |
| Tweeters | Aluminum Oxide Dome |
| Architecture | 3XR Architecture |
| Special Features | Adjustable Bipolar Arrays, Intelligent Bass Control, Linear Response Waveguide, Dolby Atmos/DTS:X Ready (with optional DM90) |
| Material | Aluminum (components) |
| Color | Black |
| Product Dimensions (D x W x H) | 16" x 11.3" x 49.4" |
| Item Weight | 99.2 pounds (45.1 kg) |
| Connectivity Technology | Wired (Speaker wire), Power Cord |
| Control Method | App (if connected to compatible system), Manual controls |
| Item Model Number | 300570-01-00-101 |
| UPC | 747192137199 |
9. Warranty and Support
The Definitive Technology Dymension DM80 speaker comes with a limited warranty provided by the manufacturer. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Definitive Technology website.
Customer Support:
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact Definitive Technology customer support.
- Manufacturer: Definitive Technology
- Website: www.definitivetechnology.com (Please visit the official website for contact information and support resources.)
Protection plans are also available for extended coverage. Please consult your retailer for details on available 2-Year or 3-Year protection plans.
