JL Audio
JL Audio HD-RLC Remote Bass Control for Certain JL Audio Amplifiers 98818
JL Audio HD-RLC Remote Bass Control for Certain JL Audio Amplifiers 98818
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Part Number 010-13438-00
The JL Audio HD-RLC is a wired remote level control designed for JL Audio amplifiers equipped with a Remote Level Control connector. It gives the driver precise, real-time adjustment of amplifier output from the front of the vehicle, making it ideal for tuning subwoofer level on the fly or managing an amplifier’s overall level without accessing the amp after installation.
Key Features
- Remote level control for JL Audio amplifiers equipped with a Remote Level Control port
- Works as a true subwoofer level control or as an overall amplifier level (application dependent)
- Can control multiple compatible amplifiers using a standard phone cable splitter (sold separately)
- Flush-mountable control knob for clean OEM-style installation
- Includes long 18 ft (5.5 m) control cable for flexible mounting locations
- Rugged rotary controller with black ABS knob
Performance
The HD-RLC functions as an attenuator on the amplifier’s input, allowing you to reduce the amplifier’s level from the driver’s seat while maintaining the amplifier’s core tuning (crossovers and gain structure). This is the correct way to add user-adjustable bass control without relying on artificial “bass boost” style processing.
For systems with varying music sources or changing road noise, the HD-RLC provides consistent, repeatable adjustment. It’s especially useful when amplifier access is limited after installation, or when the vehicle is driven by multiple people with different bass preferences.
Technical Specifications
| Remote Level Control – HD-RLC | |
|---|---|
| Function | Remote amplifier level control (input attenuation) |
| Compatibility | JL Audio amplifiers equipped with a Remote Level Control connector (select HD / XD / MHD / M models) |
| Connection Type | Wired (phone-style connector) |
| Cable Length | 18 ft (5.5 m) |
| Mounting | Flush-mount (requires panel access; 3/8" hole) |
| Multi-Amp Control | Yes, with standard phone cable splitter (sold separately) |
Ideal Applications
- Subwoofer systems needing driver-adjustable bass level without re-tuning the amp
- Multi-amplifier JL Audio builds where one knob controls multiple amps (with splitter)
- Installations where amplifier access is limited after completion
- OEM-style dashboards requiring a clean, flush-mounted control
What’s Included
- JL Audio HD-RLC remote level control (rotary controller with black ABS knob)
- 18 ft (5.5 m) control cable
- Mounting hardware
- User documentation
Why Buy From MCOR Automotive
- Authorized JL Audio dealer
- 22+ years of professional audio installation experience
- OEM-fit, clean integration standards (no hack wiring)
- Accurate compatibility guidance across JL Audio amplifier lines
- Support based on real-world install and tuning experience
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