SK58 PACKAGE: Wires, Functions, Inputs & Installation

Introduction

The Rockville SK58 Subwoofer Package is a powerful, all-in-one bass solution for your vehicle, featuring a K5 8-inch subwoofer in a single vented enclosure and a DB10 monoblock amplifier. This guide will walk you through the step-by-step setup of your subwoofer, amplifier, and wiring connections.

What’s Included?

• Rockville SK58 Subwoofer (8-inch subwoofer in a vented enclosure)
• Rockville DB10 Monoblock Amplifier
• High-Level Input Wire
• Bass Remote Knob with Cable
• Speaker Wire
• Mounting Hardware
• Allen Keys for Wire Installation
• RCA Cable for Audio Connection

Step 1: Connecting the Amplifier to Your Vehicle Battery

The DB10 amplifier requires a direct connection to your car’s battery for power.

1. Locate the power terminals on the amplifier.
   • 12V+ (Positive Terminal): Connects to the positive (+) terminal of your car battery.
   • Remote Terminal: Connects to the ignition/accessory switch of your vehicle.
   • Ground Terminal: Connects to the metal chassis of your car.
2. Run the power cable from the 12V+ terminal to your car battery’s positive (+) terminal.
3. Run the ground wire from the Ground Terminal on the amp to an unpainted metal surface on your vehicle’s chassis.
4. Run the remote turn-on wire from the Remote Terminal to the ignition/accessory wire of your head unit.

Step 2: Connecting the Subwoofer to the Amplifier

1. Locate the speaker wire terminals on both the amplifier and subwoofer.
2. Identify the speaker wire polarity:
   • Plain side = Positive (+)
   • Text-inscribed side = Negative (-)
3. Connect one end of the speaker wire to the positive and negative terminals of the amplifier.
4. Connect the other end to the corresponding positive and negative terminals on the back of the subwoofer.

✔ Make sure to match the positive and negative ends correctly for optimal performance.

Step 3: Connecting the Head Unit to the Amplifier

Your amplifier needs an audio signal from the head unit.

Option 1: Using RCA Inputs (For Head Units with RCA Outputs)

1. Take the included RCA cable.
2. Plug one end into the "RCA Line Inputs" on the amplifier.
3. Plug the other end into the RCA outputs of your head unit.

Option 2: Using High-Level Inputs (For Head Units Without RCA Outputs)

1. Take the included High-Level Input Wire Harness.
2. Connect the harness to the High-Level Input on the amplifier.
3. Match and connect the high-level output wires from the head unit to the input wires on the harness.

✔ Use this option if your factory stereo doesn’t have RCA outputs.

Step 4: Connecting the Bass Remote Knob

1. Locate the "Bass Remote" input on the amplifier.
2. Plug the remote knob cable into this input.
3. Mount the remote knob in a convenient location inside your vehicle.

✔ This allows you to adjust the bass level without accessing the amplifier directly.

Step 5: Adjusting the Amplifier Settings

1. Low Pass Filter (LPF)

• Controls the maximum frequency sent to the subwoofer.
• Recommended setting: 100Hz (Only frequencies below 100Hz will be sent to the subwoofer).

2. Bass Equalizer

• Provides an extra bass boost.
• Adjustable between 0 to 12dB (Increase for a stronger bass response).

3. Phase Adjustment

• Flips the phase from 0° to 180°.
• If the bass sounds weak or out of sync, try adjusting this.

4. Subsonic High-Pass Filter

• Filters out low frequencies that could damage the subwoofer.
• Recommended setting: 37Hz (Matches the tuning frequency of this enclosure).

5. Input Level (Gain)

• Adjusts how much input signal the amplifier receives from the head unit.
• Recommended: Start low and gradually increase.

✔ For a full guide on setting gain correctly, check out Rockville’s gain setup videos.

Step 6: Testing Your System

1. Turn on your vehicle and head unit.
2. Play some music and gradually increase the volume.
3. Adjust the bass settings using the remote knob and amplifier controls.
4. Check for distortions – if you hear any, reduce the gain and bass boost.
5. Make sure your subwoofer is producing clear, punchy bass.

✔ If the "Protect" light on the amplifier turns on, check for loose connections or overload issues.

Troubleshooting & FAQs

Q: Why is my subwoofer not working?

✔ Check the power connections – Make sure the amplifier is properly connected to the battery.
✔ Ensure the remote wire is connected – The amplifier won't turn on without this.
✔ Check the speaker wire polarity – Make sure the positive and negative connections are correct.

Q: Why does my amplifier go into protection mode?

✔ Verify your wiring – Incorrect wiring can cause overload.
✔ Reduce the gain or bass boost – Too much input signal can cause the amp to shut down.
✔ Ensure proper grounding – A weak ground connection can trigger protect mode.

Q: Why is my bass weak?

✔ Increase the gain slightly – If set too low, the sub won't receive enough power.
✔ Check the phase setting – Flipping from 0° to 180° may improve bass response.
✔ Adjust the LPF and subsonic filter – Setting these correctly ensures only bass frequencies play.

Conclusion

The Rockville SK58 Subwoofer Package delivers deep, powerful bass with easy setup and customization options.

Key Features Recap:

✔ 8-inch subwoofer in a vented enclosure
✔ DB10 monoblock amplifier for optimal power
✔ RCA and high-level inputs for head unit compatibility
✔ Remote bass knob for easy bass adjustments
✔ Customizable low-pass and subsonic filters