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Gravity

Gravity GRWF10 Car Audio Under Seat Subwoofer

★★★★★4.2 (69 reviews)

Experience Powerful Bass in a Compact DesignThe Gravity GRWF10 Under Seat Powered Subwoofer delivers deep bass and exceptional audio performance for your car. Designed to fit under the seat, this subwoofer provides a powerful audio upgrade without sacrificing space. Specifications: Brand: G...

$149.99*
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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

Experience Powerful Bass in a Compact Design

The Gravity GRWF10 Under Seat Powered Subwoofer delivers deep bass and exceptional audio performance for your car. Designed to fit under the seat, this subwoofer provides a powerful audio upgrade without sacrificing space.

Specifications:

  • Brand: Gravity
  • Model: GRWF10
  • Subwoofer Size: 10"
  • Power: 550 Watts
  • Frequency Response: 20Hz - 150KHz
  • THD: 0.4%
  • Signal to Noise Ratio: 90dB
  • Input Sensitivity: High level 0.5V, Low level 110mV
  • Bass Boost: 0 to +12 dB
  • Subsonic Filter: 20Hz fixed
  • Fuse Rating: 40A
  • Passive Radiator: 185x52mm

Key Features

High density and high quality construction

Phase shift to compensate for time alignment problem in the system

Auto power on/ off for high level connection

Low pass filter controls the frequency range

Bass boost increases the sound level / Power status LED bi-color LED

Specifications

Construction
High density and high quality
Phase Control
Phase shift for time alignment
Power Management
Auto power on/off for high level connection
Filter
Low pass filter
Audio Enhancement
Bass boost
Indicator
Bi-color Power status LED

Pros & Cons

👍 Pros

  • Features a high-density and high-quality construction, contributing to its durability and performance.
  • Includes a phase shift control to help compensate for time alignment issues within the car audio system.
  • Offers an auto power on/off function for high-level connections, simplifying integration and power management.
  • Equipped with a low pass filter, allowing precise control over the frequency range of the subwoofer output.
  • A bass boost feature is available to increase the sound level, enhancing the low-frequency impact.

👎 Cons

  • Specific details about the subwoofer's power output (RMS or Peak) are not provided, making performance comparison difficult.
  • The exact dimensions are not specified, which could be a concern for fitting it under various car seats.
  • While it has a low pass filter, the range or adjustability of this filter is not detailed.
  • The bass boost level or range of adjustment is not specified, limiting understanding of its impact.
  • The speaker's impedance or frequency response characteristics are not mentioned, impacting sound quality expectations.

Frequently Asked Questions

The phase shift feature on this subwoofer is designed to compensate for time alignment problems that can occur within the car audio system, helping to ensure synchronized sound delivery.
Yes, it features an auto power on/off function when using high-level connections, which can simplify its integration and use within your vehicle's audio system.
The low pass filter allows you to control the specific frequency range that the subwoofer reproduces, enabling you to tailor the bass output to blend seamlessly with your car's main speakers.
Yes, this subwoofer includes a bass boost feature that allows you to increase the sound level of the low frequencies, enhancing the impact of your audio.
The bi-color LED on the subwoofer serves as a power status indicator, providing a visual cue regarding the unit's operational state.

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