Rockville Rock Shaker Series Powered Home Theater Subwoofers
Owner's Manual
Thank you for purchasing this Rockville Rock Shaker Series Powered Home Theater Subwoofer. Please read this owner's manual carefully for proper use of your Rock Shaker. For assistance, contact Rockville technical support at 1-646-758-0144, Monday through Friday, 9am to 5pm EST.
What's Included
- Rock Shaker subwoofer
- Detachable foam grill
- Power cord
- Owner's manual
- Warranty card
Important Safety Instructions
WARNING: RISK OF ELECTRIC SHOCK. DO NOT OPEN.
- To reduce the risk of electric shock, do not open the unit. Refer all servicing to a qualified Rockville service center.
- Do not expose this unit to moisture.
- Position the unit away from heat sources.
- Do not obstruct vents or the exhaust fan.
- Ensure the unit is situated in a well-ventilated area.
- Place the unit on a level and stable surface. Do not mount to a wall or ceiling.
Functions (Rock Shaker 8 Pictured)
The rear panel of the subwoofer includes the following controls and connections:
- Phase switch (0° / 180°)
- Auto switch: Sets the power input mode. See page 7 for details.
- Power LED indicator
- Volume control
- Frequency control (50Hz - 150Hz)
- Power switch
- IEC AC power socket with user-serviceable fuse
- Line input (RCA L/R)
- Line output (RCA L/R)
- High level speaker input (L/R)
- High level speaker output (L/R)
Subwoofer Placement & Time Alignment
For optimal performance, place the subwoofer on the same side of the room as your system's front speakers. Placing the subwoofer in a corner or near a wall can increase its loudness. Ensure the unit is placed feet-side down. Experiment with different locations to find the best sound quality in your listening environment. Avoid placing the subwoofer near video monitors; maintain at least 18 inches of space to prevent distortion or discoloration.
Configurations
Receiver with Subwoofer Output
Connect the subwoofer to your receiver's subwoofer output using an RCA cable. If your receiver lacks an LFE (Low Frequency Effects) input, connect to the Line In RCA jacks and set the frequency knob to 150Hz. Alternatively, use a Y-splitter RCA cable to connect to the subwoofer's Line In jacks.
Receiver with No Subwoofer Output
Option 1: High Level Inputs
Connect the left and right front channel speaker outputs from your receiver to the subwoofer's High Level speaker inputs. Then, connect the subwoofer's High Level speaker outputs to your front channel speakers. Important: Do not use the RCA Line In inputs when using the High Level inputs.
Settings
Auto On/Off
Set the switch to "AUTO" for the unit to turn on when it detects an audio signal and turn off after 15 minutes of inactivity. Set to "ON" to keep the unit powered on continuously. Set to "OFF" to disable power.
Volume
Adjust the subwoofer's volume level using various audio signals.
Frequency
This control adjusts the subwoofer's crossover frequency. For tower or bookshelf speakers (with woofers 5.25" or larger), set your receiver's crossover to 80Hz. For satellite speakers, set it to 100Hz-120Hz.
Phase Switch
To set the phase, play music with prominent basslines and identify the transition point where the subwoofer blends with your main speakers. Select the phase setting (0° or 180°) that sounds loudest at this transition point for optimal integration.
Features
Rock Shaker 8
- 400W Peak / 200W RMS
- Class D amplifier
- MDF wood enclosure with high-grade vinyl covering
- Rear-firing port for optimal sound
- High-grade woofer with foam surround and paper cone
- Y30 grade magnet and 1.5" 4-layer voice coil
- Distortion-free playback
- Enclosure filled with fire-resistant poly-cotton
- Detachable foam grill
Inputs, Outputs, and Controls
- RCA line input
- RCA line output
- Speaker high level inputs
- Speaker high level outputs
- Volume control
- Phase switch (0° - 180°)
- Crossover frequency control (50Hz - 150Hz)
- Power switch
- Standard IEC power cable
Details
- Amplifier: Class D
- Woofer impedance: 4 ohm
- Signal to noise ratio: 85dB
- THD: 1%
- Input sensitivity: 88dB ± 2dB
- Frequency response: 20Hz - 200Hz
- Product dimensions (W*H*D): 11.8" x 15" x 13.8"
- Unit weight: 18LBS
- Colors: Black and Wood
Rock Shaker 10
- 600W Peak / 300W RMS
- Class D amplifier
- MDF wood enclosure with high-grade vinyl covering
- Rear-firing port for optimal sound
- High-grade woofer with foam surround and paper cone
- Y30 grade magnet and 1.5" 4-layer voice coil
- Distortion-free playback
- Enclosure filled with fire-resistant poly-cotton
- Detachable foam grill
Inputs, Outputs, and Controls
- RCA line input
- RCA line output
- Speaker high level inputs
- Speaker high level outputs
- Volume control
- Phase switch (0° - 180°)
- Crossover frequency control (50Hz - 150Hz)
- Power switch
- Standard IEC power cable
Details
- Amplifier: Class D
- Woofer impedance: 4 Ohm
- Signal to noise ratio: 85dB
- THD: 1%
- Input sensitivity: 88dB ± 2dB
- Frequency response: 20Hz - 200Hz
- 600W peak output
- 300W RMS output
- Voltage: 110 - 220V
- Product dimensions (W*H*D): 12.6" x 15.5" x 16.5"
- Unit weight: 20LBS
- Colors: Black and Wood
Rock Shaker 12
- 800W Peak / 400W RMS
- Class D amplifier
- MDF wood enclosure with high-grade vinyl covering
- Rear-firing port for optimal sound
- High-grade woofer with foam surround and paper cone
- Y30 grade magnet and 2" 4-layer voice coil
- Distortion-free playback
- Enclosure filled with fire-resistant poly-cotton
- Detachable foam grill
Inputs, Outputs, and Controls
- RCA line input
- RCA line output
- Speaker high level inputs
- Speaker high level outputs
- Volume control
- Phase switch (0° - 180°)
- Crossover frequency control (50Hz - 150Hz)
- Power switch
- Standard IEC power cable
Details
- Amplifier: Class D
- Woofer impedance: 4 Ohm
- Signal to noise ratio: 85dB
- THD: 1%
- Input sensitivity: 88dB ± 2dB
- Frequency response: 20Hz - 200Hz
- 800W peak output
- 400W RMS output
- Voltage: 110 - 220 V
- Product dimensions (W*H*D): 16.5" x 20.5" x 18"
- Unit weight: 32.2LBS
- Colors: Black and Wood
Troubleshooting
| Problem | Solution |
|---|---|
| No power | 1. Ensure the unit is plugged in and the power switch is ON. 2. Verify the power cable is securely connected to the unit. 3. Check and replace the fuse if necessary (see fuse replacement diagram). |
| No sound / Distorted sound | 1. Confirm all cables are correctly connected. 2. Check the volume settings on the subwoofer and input source. 3. If using the Receiver with Subwoofer Out configuration, check the receiver's subwoofer settings. 4. If using High Level inputs, ensure correct speaker wire polarity. |
Fuse Replacement Diagram
Note: Never replace a fuse with one of a higher rating.
The diagram illustrates the steps for replacing the fuse:
- Use a screwdriver to open the fuse holder compartment.
- Remove the old fuse.
- Insert the new fuse.
- Close the fuse holder compartment.
How to Switch Voltage
The voltage selector is located on the power entry module. To switch voltage:
- Ensure the unit is unplugged.
- Locate the voltage selector switch.
- Rotate the switch to the desired voltage setting (110-120V or 220-240V).
- Plug the unit back in.
