Gravity
Gravity 4000.1D Car Amplifier 4000W with Bass Machine
11.3 in8.3 in2.5 in4000W
Unleash Powerful Bass with Precision ControlThe Gravity 4000.1D Class D Car Amplifier, paired with the SoundXtreme AP5 Bass Machine Bundle, delivers exceptional bass and voice clarity. Known for its power and reliability, this amplifier enhances your car audio with efficient performance.Specifica...
$259.99*
View on Amazon
✓ In Stock on Amazon.com
*Price sourced from Amazon.com. Last updated:Oct 21, 2026.Price and availability are subject to change — details.
Affiliate Disclosure: As an Amazon Associate, Studio Supplies earns from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.
Notice a mistake? Let Us Know
Overview
Unleash Powerful Bass with Precision Control
The Gravity 4000.1D Class D Car Amplifier, paired with the SoundXtreme AP5 Bass Machine Bundle, delivers exceptional bass and voice clarity. Known for its power and reliability, this amplifier enhances your car audio with efficient performance.
Specifications:
- Amplifier Class: Class D
- Max Power: 4000W @ 1 Ohm
- Stable: 2 Ohm and 4 Ohm
- S/N Ratio: > 70 dB
- Frequency Response: 8 Hz ~ 180 Hz
- THD: <0.2%
- Bass Boost Level: 0 ~ 12 dB
- LPF: 40 Hz ~ 180 Hz
- Subsonic Filter: 0 ~ 50 Hz
- Inputs: High- and Low-Level Inputs
- Crossover: Variable Low Pass
- Bass Boost: Variable
- Dimensions: 286 mm (L) × 211 mm (W) × 64.5 mm (H)
- Included: SoundXtreme AP5 Bass Machine Bundle
Key Features
POWERFUL - Gravity 4000.1D second-generation digital Class D monoblock amplifier delivers up to 4000 watts maximum power for bass-focused car audio systems, with 1 ohm operation plus stable 2 ohm and 4 ohm compatibility.
CONTROL - Shape low-frequency output from the driver seat with the included bass knob, adjustable 0-12 dB bass boost, variable 40-180 Hz low-pass filter, and 0-50 Hz subsonic filter for tailored subwoofer performance.
CLEAN - Built for focused subwoofer amplification, this mono amp provides a frequency response of 8-180 Hz, signal-to-noise ratio greater than 70 dB, and total harmonic distortion below 0.2% for controlled bass reproduction.
VERSATILE - High-level and low-level input connections support integration into a wide range of vehicle audio systems, while the variable low-pass crossover helps match the amplifier output to compatible subwoofer enclosures.
COMPACT - The efficient Class D chassis measures 286 x 211 x 64.5 mm (11.3 x 8.3 x 2.5 inches), providing high-output monoblock amplification in a space-conscious format suited for many trunk or cargo-area installations.
BUNDLE - This package combines the Gravity 4000.1D monoblock amplifier with a SoundXtreme AP5 Bass Machine, giving bass enthusiasts key equipment for building a dedicated low-frequency section in a custom car audio setup.
Specifications
Max Power Output
4000W
Class
Class D
Impedance Stability
1 Ohm, 2 Ohm, 4 Ohm
Included Accessory
Bass Knob (2nd Generation)
Signal-to-Noise Ratio (S/N)
> 70 dB
Frequency Response
8 Hz ~ 180 Hz
Total Harmonic Distortion (THD)
< 0.2%
Bass Boost Level
0 ~ 12 dB
Low Pass Filter (LPF)
40 Hz ~ 180 Hz
Subsonic Filter
0 ~ 50 Hz
Inputs
High and Low Level
Crossover
Variable Low Pass
Dimensions (L×W×H)
286 mm (11.3 in) × 211 mm (8.3 in) × 64.5 mm (2.5 in)
Frequently Asked Questions
What is the maximum power output of the Gravity 4000.1D car amplifier?
This Gravity car amplifier has a maximum power output of 4000W, achieved when operating at 1 Ohm.
Does this amplifier come with a bass control knob?
Yes, the Gravity 4000.1D amplifier includes a bass knob, specifically a 2nd Generation version, for convenient bass level adjustments.
What is the frequency response range of this amplifier?
The amplifier features a frequency response range of 8 Hz to 180 Hz, indicating its focus on delivering deep bass frequencies.
Can this amplifier be used with different speaker impedances?
Yes, the amplifier is stable at 1 Ohm, 2 Ohm, and 4 Ohm loads, offering flexibility in connecting various speaker configurations.
What kind of inputs does the Gravity 4000.1D support?
This amplifier is equipped with both high and low level inputs, allowing for connection to a wide range of car stereo head units.
What are the dimensions of this car amplifier?
The dimensions of the amplifier are 286 mm (11.3 in) in length, 211 mm (8.3 in) in width, and 64.5 mm (2.5 in) in height.
Related Products
