More about the product
A second-generation Stage GT Series mono Class D car amplifier from JBL, the Stage GT50011 delivers 300W RMS at 4Ω and 500W RMS at 2Ω (1220W peak) with an OEM Load Detect System for seamless factory system integration, variable lowpass filter (32-320Hz), variable bass boost (0-12dB at adjustable Q factor), variable phase adjustment (0-180°), high-level and low-level inputs, Start-Stop vehicle compatibility, LED power and protection indicator, 4-way protection circuitry, and an included wired bass level remote control.
Features & Benefits
500W RMS at 2Ω - 2Ω Stable Mono Class D: The Stage GT50011 delivers 300W RMS at 4Ω and 500W RMS at 2Ω with a 1220W peak rating, providing sufficient power reserves for a wide range of subwoofer configurations in 4Ω and 2Ω loads.
OEM Load Detect System - Seamless Factory Integration: The new OEM Load Detect System ensures the vehicle's power management system automatically recognises and responds to the new amplifier without negatively impacting the vehicle electrical system, enabling cleaner integration into modern vehicles with factory head units and OEM power management.
Start-Stop Vehicle Compatible: Designed for compatibility with Start-Stop vehicle systems, maintaining consistent audio output and battery efficiency during momentary engine stops at traffic lights and stop signs.
Variable Lowpass Filter - 32-320Hz: The variable lowpass filter adjusts from 32Hz to 320Hz to precisely limit the frequency range sent to the subwoofer, enabling crossover optimisation for a wide range of subwoofer and enclosure configurations.
Variable Bass Boost - 0-12dB with Adjustable Q Factor: The variable bass boost from 0 to 12dB with adjustable Q factor allows fine-tuned bass enhancement control, delivering a more tailored low-frequency response for different subwoofer configurations and acoustic environments.
Variable Phase Adjustment - 0-180°: The continuously adjustable phase control from 0° to 180° aligns the subwoofer output phase with the main speaker system for optimal bass integration and maximum output at the crossover point.
High-Level and Low-Level Inputs: Low-level RCA inputs (0.2-5V) accept signals from aftermarket head units and DSP processors. High-level speaker-level inputs (1-25V) accept signals directly from factory OEM head unit speaker outputs, providing compatibility with virtually any audio source configuration.
Wired Bass Level Remote Control Included: The included wired bass level remote control provides convenient subwoofer level adjustment from the driver's position without requiring direct access to the amplifier after installation.
4-Way Protection Circuitry: Comprehensive protection against thermal overload, electrical overload, undervoltage, and speaker short conditions ensures long-term amplifier reliability in all operating conditions.
LED Power and Protection Indicator: The onboard LED provides real-time status feedback for power-on and protection mode states.
Compact Design: The compact form factor enables installation in tight spaces including under seats and in boot compartments with limited clearance.
Technical details
Frequently Asked Questions
Why Choose Bankstown Sound for Your Car Audio & Tech Upgrades
At our Bankstown Sound store and workshop in Sydney, our team ensures every car and auto audio installation and upgrade starts with an understanding of how you use your car. Our team works with you to understand your driving habits, the features you rely on, and the problems you’re trying to solve.
Most factory setups are built to broad standards and often lack the clarity or seamless connectivity required for how people actually drive. That’s why we focus on modernising your dashboard and audio performance based on how you use your vehicle.