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Gravity

Gravity GR300.4 4-Channel Car Audio Amplifier 1200W

1200W

Power Your Car Audio with the Gravity GR300.4 Amplifier Amplify your car audio experience with the Gravity GR300.4 4-Channel Car Audio Stereo Amplifier. Delivering 1200 Watts peak power, this Class AB amplifier features 2 Ohm stable technology for clean and distortion-free sound. Includes remote ...

$94.99*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

Power Your Car Audio with the Gravity GR300.4 Amplifier

Amplify your car audio experience with the Gravity GR300.4 4-Channel Car Audio Stereo Amplifier. Delivering 1200 Watts peak power, this Class AB amplifier features 2 Ohm stable technology for clean and distortion-free sound. Includes remote level control bass knob for customized audio tuning.

Specifications:

  • Channels: 4
  • Amplifier Class: AB
  • Peak Power: 1200W
  • Power MAX (2 Ohms): 300W x 4
  • Power MAX (4 Ohms): 150W x 4
  • S/N Ratio: >70dB
  • Low Pass Crossover: 50 Hz ~ 250 Hz (Variable)
  • High Pass Crossover: 80 Hz ~ 1.2 kHz (Variable)
  • Frequency Response: 10 Hz ~ 30 kHz
  • Remote Subwoofer Control: Yes

Package Contents:

  • GR300.4 Amplifier
  • Remote Bass Control
  • Manual

Key Features

Four Class "AB" High-Current Dual Discrete Drive Stages

Continuously Variable 12dB/Octave High Pass & 12dB/Octave Low Pass Crossover

Subwoofer Variable Crossover for Deep Bass Control

Chrome Plated RCA & Power, Speaker Terminal

Overload, Thermal, Short Circuit Protection

Specifications

Channels
4-Channel
Amplifier Class
Class "AB"
Crossover Type
Continuously Variable 12dB/Octave High Pass & Low Pass
Subwoofer Control
Subwoofer Variable Crossover
Terminals
Chrome Plated RCA & Power, Speaker Terminal
Protection Features
Overload, Thermal, Short Circuit Protection

Pros & Cons

👍 Pros

  • Features four Class "AB" high-current dual discrete drive stages for robust audio output
  • Equipped with continuously variable 12dB/octave high pass and low pass crossovers for precise sound tuning
  • Includes a subwoofer variable crossover, offering enhanced control over deep bass frequencies
  • Designed with chrome-plated RCA and power/speaker terminals for improved conductivity and corrosion resistance
  • Incorporates comprehensive protection features against overload, thermal issues, and short circuits for durability

👎 Cons

  • Specific power output ratings (RMS/peak wattage) are not provided, making it difficult to assess its true amplification capability
  • Lack of details on signal-to-noise ratio or total harmonic distortion prevents a full assessment of audio clarity
  • Installation may require specialized knowledge due to wiring and crossover adjustments
  • No mention of a remote bass control knob, which some users prefer for on-the-fly subwoofer adjustments
  • The Class "AB" design, while offering good sound quality, may generate more heat than Class D amplifiers

Frequently Asked Questions

The Gravity GR300.4 is a 4-channel car audio amplifier featuring Class "AB" high-current dual discrete drive stages.
Yes, it includes a subwoofer variable crossover, allowing for deep bass control to fine-tune your audio output.
It comes with continuously variable 12dB/octave high pass and 12dB/octave low pass crossovers for precise sound customization.
Yes, the Gravity GR300.4 includes overload, thermal, and short circuit protection to ensure durability and safe operation.
The amplifier features chrome-plated RCA, power, and speaker terminals, which generally offer good conductivity and resistance to corrosion.

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