GR1300.1

High-Power Monoblock Amplifier for Deep Bass Performance

The Gravity GR1300.1 Monoblock Amplifier is engineered to deliver powerful and reliable bass performance for high-performance car audio systems. Built with advanced Class AB technology, this amplifier provides strong output with clean signal reproduction, making it ideal for powering subwoofers in custom car audio installations. With a maximum power output of 1300 watts at 2 ohms, the GR1300.1 is designed to produce deep, impactful bass while maintaining low distortion and audio clarity.

Perfect for enthusiasts seeking enhanced low-frequency performance, this amplifier combines power, flexibility, and dependable operation. Whether upgrading a factory sound system or building a competition-inspired setup, the GR1300.1 delivers the energy needed for immersive bass reproduction.

Advanced Audio Controls with Stable 2-Ohm Operation

Designed for flexible audio tuning, the Gravity GR1300.1 features a variable low-pass crossover ranging from 50Hz to 250Hz, allowing users to optimize bass frequencies for their subwoofer system. The amplifier also includes enhanced variable bass boost controls for deeper low-end impact and improved sound customization.

Its stable 2-ohm operation ensures efficient performance and compatibility with a wide range of subwoofer configurations. The amplifier supports both line-level and speaker-level inputs for easier integration into aftermarket and factory audio systems. A remote bass control knob is included for convenient subwoofer level adjustment directly from the driver’s seat.

Durable Protection Circuitry with Premium Construction

The Gravity GR1300.1 is built with MOSFET PWM power supply technology and high-current dual discrete drive stages for improved efficiency and consistent performance. Integrated overload, thermal, and short-circuit protection systems help safeguard the amplifier and connected audio components during demanding operation.

Additional features such as soft start circuitry, muting protection, chrome-plated terminals, and LED power/protection indicators contribute to long-term reliability and user convenience. Its compact chassis design allows flexible installation while maintaining professional-grade performance for serious car audio applications.

Highlights

• 1300W maximum power monoblock amplifier
• Stable 2-ohm Class AB amplifier design
• 750W x 1 output at 4 ohms
• MOSFET PWM power supply technology
• Variable low-pass crossover from 50Hz to 250Hz
• Enhanced bass boost control for deeper bass response
• Includes remote bass level control knob
• Line-level and speaker-level input compatibility
• Overload, thermal, and short-circuit protection
• LED power and protection status indicators
• Soft start and muting protection circuitry
• Chrome-plated RCA, power, and speaker terminals
• High-current dual discrete drive stages
• Frequency response range from 10Hz to 250Hz
• Compact chassis for flexible installation options

Package Contains

• Gravity GR1300.1 Monoblock Amplifier
• Remote Bass Control Knob
• User Manual
• Mounting Hardware