Memphis LL6BXL 6-Channel Line Output Converter

The Memphis LL6BXL is a six-channel line output converter designed to integrate aftermarket amplifiers with a vehicle’s factory audio system. It accepts speaker-level signals and provides adjustable line-level output for an expanded audio system. This makes it a practical interface when retaining the original radio is preferred or required.

Its six active speaker-level input channels are rated to handle up to 40V, supporting connection to a range of factory-amplified audio systems. Discrete output-level controls allow the installer to set signal levels during system tuning. The design is intended for multi-channel upgrades involving front, rear, and subwoofer amplification.

The LL6BXL includes bass-enhancer processing to help correct factory bass roll-off. This can be useful when a factory system reduces low-frequency output as volume rises. Internal channel summing further supports integration with factory systems that divide audio signals across multiple channels.

A selectable load switch helps the converter work with factory systems that monitor speaker loads. Audio-sense turn-on can activate connected equipment when an audio signal is detected, while the ground-isolation switch provides an installation option for addressing system noise. These functions give an installer multiple setup choices without replacing the factory source unit.

With up to 11.2V maximum output, the LL6BXL is built to provide a strong signal to compatible aftermarket amplifiers or processors. An RG9 wired remote is included for convenient adjustment. It fits into an OEM-retention upgrade path where the factory radio stays in place while the amplification and speakers are upgraded separately.

Key Features

• Six Active Inputs: Accepts six speaker-level channels for multi-channel factory-system integration.
• 40V Input Handling: Supports high-voltage speaker-level signals from compatible factory amplifiers.
• Bass Enhancer: Helps correct bass roll-off from factory audio systems.
• Internal Summing: Combines channels internally when a factory signal is split.
• Selectable Load: Provides load-selection flexibility for OEM audio-system integration.
• RG9 Wired Remote: Includes a remote for convenient system adjustment.

Design & Installation

The LL6BXL uses an active six-channel conversion design with discrete level controls, internal summing, bass-enhancer processing, and switch-selectable integration functions. Memphis does not publish an enclosure-material specification for this model. Its layout is focused on providing signal conversion and adjustment functions for an aftermarket amplifier installation.

Installation involves connecting the converter to appropriate factory speaker-level signals, providing the required vehicle power and ground connections, and routing its line-level outputs to compatible amplifiers or processors. Set the load-selection and ground-isolation switches according to the vehicle and installation requirements, then adjust output levels as part of system tuning. Professional installation is recommended when working with amplified, factory-processed, or complex OEM audio systems.