AudioControl Matrix Plus 6-Channel Line Driver

The AudioControl MATRIX PLUS is a six-channel line driver engineered to elevate low-level head-unit signals for demanding car audio builds, delivering up to 24 dB of gain and as much as 9.5 Vrms (13V peak) across its outputs.

• Six channels of input and output: Six preamp paths can be processed and distributed across six outputs; the design supports a scalable, multi-amp setup and seamless level matching across channels. The internal linking system lets two inputs drive all six outputs, with each output capable of driving up to seven amplifiers.
• 24 dB of gain: Increases weak pre-amp signals from modern stereos to drive multiple amps without pushing the head unit beyond its limits.
• Maximum output level: 9.5 Vrms: Provides strong, clean drive for multiple amplifiers, reducing the need for additional signal boosting in large installs.
• 13V peak output: Offers headroom for dynamic, transient-heavy music and high-demand SPL configurations.
• Balanced differential inputs: Improves noise rejection in vehicle environments, preserving signal integrity over longer runs.
• Low-impedance outputs: Maintains signal quality when feeding multiple amplifiers, minimizing voltage drop and distortion.
• Optional Remote Level Control (ACR-1): Enables remote adjustment of pre-amp signal levels for master-volume or subwoofer balancing from a dash or control surface.
• PFM Subsonic filter: Suppresses unwanted ultra-low frequencies that can tax amps and subwoofers, keeping bass tight and clean.
• Output level controls: Allows precise calibration of each channel’s level within the system to achieve a balanced soundstage.
• Selectable ground isolation: Helps mitigate ground-loop issues in complex installations for quieter operation.
• Optimum voltage indicator LEDs: Visual cues simplify setup and monitoring of operating voltage for reliable performance.
• Conformally Coated PCB: Enhances reliability in challenging automotive environments by resisting moisture and contaminants.
• Power supply: Transformer-isolated PWM provides clean, stable power with a 1A fuse recommendation for protection.
• Inputs and outputs: Preamp inputs 3 (6 channels), 20 kΩ input impedance; outputs 6 channels, 50 Ω output impedance.
• Frequency response and noise: 10 Hz–100 kHz ±1 dB with >110 dB signal-to-noise and THD of 0.005% for high-fidelity signal transmission.
• Dimensions and weight: 4.6" W × 7.1" D × 1.2" H, approximately 1.3 lb.
• In the box: MATRIX PLUS, Power Connector, Manual, warranty/downloads.

The MATRIX PLUS is ideal for high‑fidelity multi‑amp systems, SPL builds that require flexible input-to-output routing, and installations where remote level control and robust noise rejection are priorities. It solves the common problem of weak head-unit signal at multiple amplifiers by providing consistent, high-level drive and centralized level management.