Electronics / Speakers & Soundbars
Rockville Destroyer 15D2 Subwoofer User Manual
Quick guide for the Rockville Destroyer 15D2 subwoofer, including technical specifications, Thiele/Small parameters, recommended enclosure dimensions, and detailed wiring configuration diagrams.
Quick answers from the manual
Quick answer
- The Rockville Destroyer 15D2 is a dual 2-ohm voice coil subwoofer. It requires an enclosure of 2.02–2.47 cubic feet (sealed) or 3.16–4.41 cubic feet (vented). Wiring must be configured to match your amplifier's stable impedance rating. p. 1, 2
Key actions
- Verify amplifier stability before wiring. p. 2
- Measure final impedance with a multimeter. p. 2
Problems and fixes
Amplifier protection mode
Check if the final impedance load is lower than the amplifier's minimum stable rating.
p. 2Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Power (RMS) | 4000 Watts | Continuous power handling capability. | p. 1 |
| Impedance | 2 ohm | Nominal impedance per voice coil. | p. 1 |
Where to find it in the PDF
- Specifications and TS Parameters p. 1
- Wiring Configurations p. 2
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
This document provides essential technical data and wiring configurations for the Rockville Destroyer 15D2 subwoofer. It is intended for installers and users to ensure proper impedance matching and enclosure design for optimal performance.
Technical specifications
- Application: Subwoofer
- Impedance: 2 ohm
- Power Ratings (CEA/RMS/Peak): 2000 / 4000 / 8000 Watts
- Frequency Response: 33Hz - 1.5KHz
- Cut-out Diameter: 14.76 inches (374.9mm)
- Mounting Depth: 9.76 inches (247.9mm)
- Weight: 52.92 lbs
- Basket Type: Cast aluminum with black sanded finish
- Cone: Ultra stiff black non-pressed paper cone
- Voice Coil: 3-inch Dual 2 ohm 4 Layer Black Aluminum Voice Coil
Recommended enclosure dimensions
To achieve the best sound quality, use the following enclosure volume recommendations:
- Sealed enclosure: 2.02 - 2.47 cubic feet
- Vented enclosure: 3.16 - 4.41 cubic feet
Thiele/Small parameters
The following parameters are provided for system design and simulation:
- Revc: 3.60 Ohm
- Fo: 36.421 Hz
- Sd: 77.931 mM
- Md: 350.000 g
- BL: 20.075 T
- Qms: 3.388
- Qes: 0.616
- Qts: 0.521
- No: 0.415%
- SPLo: 88.2 dB
- Vas: 54.668 Ltr
- Cms: 63.391 mm/N
- Krm: 14.985m Ohm
- Erm: 0.778
- Mms: 301.232 g
- Mmd: 288.723m Kg
- Kxm: 140.297m H
- Exm: 0.550
Woofer wiring configurations
The Rockville Destroyer 15D2 features dual voice coils. Proper wiring is critical to match the final impedance load to your amplifier's capabilities.
- Mono Block Amplifier Connections: You can create a final impedance load to match your amplifier. Ensure the final load is stable at the amplifier's rated impedance (e.g., 1 ohm or 2 ohm stable).
- Multi-Channel Amplifier Connections: If bridging a multi-channel amplifier, ensure the final impedance load of the subwoofer(s) is 2 ohms or greater.
- Wiring Diagrams: The manual provides specific diagrams for wiring one, two, three, or four subwoofers to achieve various final impedance loads (e.g., 0.5 ohm, 1 ohm, 2 ohm, 3 ohm, 4 ohm, 8 ohm). Always verify the final impedance with a multimeter before powering on the system.
Manufacturer information
Rockville
Practical help
Common problems
Amplifier overheating or shutting down
Check that the final impedance load of the subwoofer configuration is not lower than the minimum stable impedance rating of your amplifier.
Incorrect sound output or distortion
Verify that all voice coils are wired correctly according to the diagrams and that the enclosure volume matches the recommended specifications.
Before use
- Verify your amplifier's stable impedance rating (1 ohm or 2 ohm).
- Calculate the required enclosure volume based on the recommended sealed or vented specifications.
- Use a multimeter to measure the final impedance load after wiring the voice coils.
- Ensure the mounting surface can support the 52.92 lbs weight of the subwoofer.
Specs in practice
- Cut-out Diameter
- The diameter of the hole you must cut in the enclosure baffle to mount the subwoofer.
- Dual 2 ohm Voice Coil
- The subwoofer has two separate 2-ohm voice coils, allowing for flexible wiring configurations (series or parallel).
- Mounting Depth
- The minimum internal depth required in the enclosure to accommodate the subwoofer magnet structure.
Images and diagrams
- The wiring diagrams illustrate how to connect the positive (+) and negative (-) terminals of the dual voice coils to achieve specific total impedance loads.
- Parallel wiring reduces total impedance, while series wiring increases total impedance.
Model compatibility
- Ensure your amplifier is stable at the final impedance load created by your wiring configuration.
- The 'This diagram is not recommended for Rockville amplifiers' note refers to specific low-impedance configurations that may exceed amplifier capabilities.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.