Meridian Sound System 400W Retrofit

Complete OEM-Grade Restoration of JLR's Premium 11-Speaker Audio System with Digital Signal Processing

System Overview

The LR-Retrofit Meridian Sound System 400W delivers comprehensive restoration of JLR's premium audio technology to compatible Land Rover vehicles. This genuine OEM retrofit kit reinstates the factory Meridian audio experience that transforms every journey with exceptional acoustic performance. The system provides 400 watts of power distributed across 11 strategically positioned speakers, creating an immersive listening environment with precise audio imaging.

Engineered to exact JLR specifications, this retrofit integrates seamlessly with the existing vehicle infotainment architecture and MOST network. The Meridian 400W system employs proprietary Digital Signal Processing algorithms and Trifield technology to optimize audio reproduction for the specific acoustic characteristics of Land Rover interiors. This restoration maintains complete electrical integration and delivers the same acoustic performance as factory-installed Meridian systems.

Technical Specifications

Component	Technical Specification
Total System Power	400 Watts RMS (Digital Amplification)
Speaker Configuration	11 Speakers (2-Way & 3-Way Systems)
Amplifier Technology	Digital Signal Processing (DSP) Amplifier
Audio Processing	Meridian Trifield & Surround Sound Algorithms
Frequency Response	20Hz – 20kHz (±3dB Vehicle Optimized)
Speaker Materials	Kevlar Reinforced Cones, Rubber Surrounds
Vehicle Integration	MOST Network Communication with Touch Pro
Equalization Profiles	5 Presets + Custom User Configuration
System Control	Full Integration with InControl Touch Pro

Audio Features & Acoustic Benefits

Meridian Digital Signal Processing

The system employs advanced DSP algorithms that automatically optimize audio reproduction for vehicle speed, cabin noise, and seating position. This intelligent processing ensures consistent audio quality regardless of driving conditions.

Trifield Surround Sound Technology

Meridian's proprietary Trifield technology creates a cohesive soundstage that surrounds all occupants with balanced audio. This sophisticated processing delivers precise imaging and spatial accuracy throughout the cabin.

Premium Speaker Components

High-excursion woofers with Kevlar reinforcement provide exceptional bass response while minimizing distortion. Silk dome tweeters deliver crisp high frequencies with smooth dispersion characteristics.

Complete Vehicle Integration

Our retrofit maintains perfect integration with the InControl Touch Pro system. The audio interface provides full control over equalization, balance, and surround sound settings through the factory touchscreen.

Speaker Configuration & Placement

Complete 11-Speaker Layout

Front Stage: 3-way component system (tweeter, midrange, woofer) in each front door
Rear Stage: 2-way coaxial speakers in each rear door
Center Channel: Dedicated center speaker in dashboard for vocal clarity
Subwoofer System: Dual voice coil subwoofer in dedicated rear enclosure
A-Pillar Tweeters: High-frequency drivers for enhanced sound staging

Each speaker position receives careful acoustic engineering to optimize performance within the specific Land Rover cabin architecture. The system maintains precise time alignment and phase coherence across all driver locations.

Vehicle Compatibility

This Meridian 400W retrofit kit supports multiple Land Rover platforms that originally offered this audio system as factory or dealer-installed options. Compatibility requires specific vehicle architecture and existing infotainment systems.

Range Rover (L405)

Model Years: 2013-2021
Requirements: InControl Touch Pro, MOST Network

Range Rover Sport (L494)

Model Years: 2014-2022
Requirements: Updated Audio Gateway Module

Discovery 5 (L462)

Model Years: 2017-2023
Requirements: Base Audio System with MOST

Range Rover Velar (L560)

Model Years: 2018-2023
Requirements: Touch Pro Duo System

Technical Verification Required: Complete system functionality requires compatible infotainment hardware and MOST network architecture. Our technical team provides pre-purchase compatibility verification using your vehicle's VIN to confirm all necessary prerequisites.

Complete Kit Components

Each LR-Retrofit Meridian 400W kit includes all genuine components required for professional OEM-grade installation:

Meridian DSP Amplifier: 400W digital amplifier with vehicle-specific calibration
Complete Speaker Set: 11 premium speakers with mounting hardware
Vehicle-Specific Harness Kit: Complete wiring loom with OEM connectors
Subwoofer Enclosure: Acoustic-optimized subwoofer box with integrated amplifier
Audio Gateway Module: Updated module for system integration
Technical Documentation: Comprehensive installation manual with wiring schematics
Software Configuration Guide: SDD/Pathfinder programming procedures
Acoustic Calibration Files: Vehicle-specific DSP tuning profiles

Installation & Calibration Process

We recommend installation by technicians with specific JLR audio system expertise. The installation follows factory service procedures for complete system integration:

Replace all factory speakers with Meridian premium components
Install DSP amplifier in designated vehicle location
Integrate subwoofer enclosure in rear compartment
Connect complete harness to vehicle MOST network
Update audio gateway module software configuration
Program system parameters using JLR diagnostic software
Load vehicle-specific acoustic calibration profiles
Perform comprehensive audio system testing and validation

System Integration Architecture

Audio Source → MOST Network → Audio Gateway → DSP Amplifier → Speaker Array → Acoustic Optimization

Owner Benefits & Acoustic Value

Exceptional Audio Fidelity: The Meridian 400W system delivers premium acoustic performance that transforms every journey into an immersive listening experience.
Factory-Correct Technology Restoration: This retrofit returns the vehicle to its intended audio specification, maintaining complete OEM integration and acoustic characteristics.
Enhanced Driving Experience: Superior audio quality enhances comfort and enjoyment during both short commutes and extended journeys.
Increased Vehicle Value: Vehicles with factory-installed premium audio systems command premium positioning in the pre-owned Land Rover market.
Professional Technical Support: Access to LR-Retrofit's specialized technical team ensures correct installation and optimal system performance.

Restore Factory Meridian 400W Audio Capability

This comprehensive retrofit kit represents the definitive solution for adding JLR's premium audio technology to your Land Rover. Experience the acoustic excellence that matches your vehicle's premium specification and enhances every driving experience.

Contact our technical specialists for complete compatibility verification and professional installation guidance.

Make Model	Discovery Sport 2021+

Meridian Sound System 400W

System Overview

Technical Specifications