AudioControl AC-LGD 20 Load Generating Device

The AudioControl AC-LGD 20 is a compact load-generating module that preserves and stabilizes signals from factory amplified car audio systems when speakers are removed or aftermarket gear is added.

Many modern vehicles use factory amplifiers with protection circuits that can mute outputs if the expected speaker load is missing. The AC-LGD 20 pair solves that by emulating a safe load and keeping the amplifier’s outputs active and predictable. Designed to work with AudioControl factory system upgrade products and line-output converters, these pre-wired modules make integration faster and reduce troubleshooting during installs.

How does the AC-LGD 20 keep factory amps from muting?

The AC-LGD 20 provides a stable 20-ohm impedance to the speaker outputs so the vehicle’s amplifier sees an expected load and avoids triggering protection. That produces a consistent line-level signal for downstream converters, processors, or aftermarket amplifiers. It’s a passive, low-profile solution that installs inline between the speaker outputs and your line-output converter or amp speaker-level inputs.

• Input impedance: 20 ohms per module to mimic speaker load.
• Maximum input voltage: 15 Vrms (equivalent to ~50 watts peak handling).
• Sold as a matched pair with EIA-standard pre-wired connectors for front and rear channels.
• Plug-and-play wiring reduces the risk of activating amp protection circuits during install.

What vehicles and systems is this best suited for?

The AC-LGD 20 was created specifically for OEM systems that rely on amplifier-side protection and lack an external amplifier — for example certain Dodge, Chrysler, Jeep and Maserati radios. It’s ideal whenever you need a dependable line-level output but the factory amp expects a speaker load. If you’re upgrading a factory head unit or adding an aftermarket processor, these modules help ensure consistent behavior.

• Targets OEM amplified but non-external amplifier platforms.
• Compatible with AudioControl Factory System Upgrade components and many line-output converters.
• Recommended for vehicles known to mute channels when speakers are disconnected.
• Compact size fits behind dash panels or inside door cavities for neat installs.

How do I install and connect the AC-LGD 20?

Installation is straightforward: place each LGD between the factory speaker outputs and the line-inputs of your converter, processor or amp. The units come pre-wired with standard EIA color coding to match common factory wiring harnesses, minimizing guesswork. No soldering is required when paired with compatible AudioControl products that accept these connectors.

• Pre-wired pairs include front and rear channel color-coded leads.
• Dimensions: 2.3" L x 1.0" W x 0.06" H (module only); 9.75" cable length with connectors.
• Single unit weight: ~1.4 oz (39 g) for easy mounting behind panels.
• Works inline with speaker-level inputs or with line-output converters.

Will the AC-LGD 20 affect my audio quality or volume?

The AC-LGD 20 is passive and engineered to present the correct electrical load without altering the intended audio content. It prevents unintended muting or level drops caused by factory protection behavior while passing a stable signal to converters and processors. Because it doesn’t amplify or filter the signal, it maintains the original tonal balance and dynamics sent by the factory amp.

• Passive design keeps signal integrity intact.
• No active processing or EQ—only load simulation and stabilization.
• Rated for up to 15 Vrms input, protecting against overdrive from factory outputs.
• Used in pairs to preserve stereo and channel balance.

Who is this for? Installers and DIY enthusiasts upgrading factory audio in vehicles with amplified OEM sound systems will value the AC-LGD 20. It’s particularly useful for anyone adding a line-output converter, aftermarket processor, or separate amplifier where the factory amp’s protection can interfere with audio outputs. If you need a compact, reliable way to keep factory outputs active and produce consistent line-level signals without modifying factory electronics, the AudioControl AC-LGD 20 provides a neat, reversible solution backed by a five-year warranty.