Gravity

Gravity GR1500.2 2-Channel 3000W Car Amplifier

4.2 (10 reviews)
3000W

The Gravity GR1500.2 delivers 3000 watts of Class AB power across two channels with MOSFET technology and built-in crossover controls.

$119.99*
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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

The Gravity GR1500.2 is a two-channel Class AB car amplifier engineered to push serious power to your vehicle's sound system. Each channel delivers up to 1500 watts at 2 ohms or 750 watts at 4 ohms, giving you ample headroom to drive a pair of component speakers, coaxial sets, or subwoofers. The MOSFET PWM power supply at the heart of the unit ensures efficient energy conversion and clean signal delivery across the amplifier's frequency response range of 10 Hz to 30 kHz. Four high-current dual discrete drive stages handle the amplification duties, providing stable output even under sustained, high-volume listening.

Flexibility is a key strength of the GR1500.2. It supports bridgeable and tri-mode operation, so you can run it in stereo for full-range speakers, bridge it mono for a subwoofer, or configure a combination of both. Onboard continuously variable crossovers — a 12dB/octave high-pass (80 Hz to 1.2 kHz) and a 12dB/octave low-pass (50 Hz to 250 Hz) — let you tailor frequency output to your speakers without needing a separate crossover unit. A variable bass boost and included remote level control round out the tuning options, putting bass adjustments within easy reach from the driver's seat. Built-in overload, thermal, and short circuit protection safeguard the amplifier and connected speakers during demanding conditions. With input sensitivity adjustable from 200mV to 6V, the GR1500.2 is compatible with a wide range of head units and signal processors.

Key Features

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

Bridgeable & TRI-Mode Operation

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

Subwoofer Variable Crossover for Deep Bass Control

Overload, Thermal, Short Circuit Protection

Specifications

Brand
Gravity
Model
GR1500.2
Channels
2
Max Power Output
3000W
2 Ohm Power
1500W x 2 @ 1% THD
4 Ohm Power
750W x 2 @ 1% THD
Amplifier Class
AB
Power Supply
MOSFET PWM
Signal-to-Noise Ratio
>70dB
Frequency Response
10 Hz – 30 kHz
Low Pass Crossover
50 Hz – 250 Hz
High Pass Crossover
80 Hz – 1.2 kHz
Input Sensitivity
200mV – 6V
Fuse Rating
50A
Dimensions
10.5 x 2.25 x 15.5 inches

Pros & Cons

👍 Pros

  • High power output of 1500W per channel at 2 ohms provides strong headroom for demanding speaker setups
  • Bridgeable and tri-mode operation offers flexible configuration for full-range, subwoofer, or mixed speaker systems
  • Built-in variable high-pass and low-pass crossovers with subwoofer control allow precise frequency tuning without external processors
  • MOSFET PWM power supply delivers efficient, clean power with reduced distortion
  • Overload, thermal, and short circuit protection helps prevent damage during high-demand use

👎 Cons

  • 50-amp fuse rating demands robust wiring and a capable electrical system in the vehicle
  • At 10.5 x 15.5 inches, the amplifier's footprint requires significant mounting space in a trunk or under a seat
  • Signal-to-noise ratio of greater than 70dB is modest compared to higher-end amplifiers
  • 2.25-inch height may still be too tall for some under-seat installations

Frequently Asked Questions

The GR1500.2 produces up to 1500 watts per channel at 2 ohms (1% THD), for a combined maximum of 3000 watts.
Yes, the amplifier supports bridgeable and tri-mode operation, allowing you to bridge both channels into one for driving a subwoofer with combined power.
The amplifier includes overload protection, thermal protection, and short circuit protection to safeguard both the unit and your speakers.
Yes, it includes a remote level control that lets you adjust bass output from the driver's seat without reaching for the amplifier.
The amplifier uses a 50-amp fuse.