Gravity GR-EQ15 EQ15 5 Band Car Audio Equalizer 9V — main product image

Gravity GR-EQ15 EQ15 5 Band Car Audio Equalizer 9V

Gravity

Gravity GR-EQ15 EQ15 5 Band Car Audio Equalizer 9V

Name: Gravity GR-EQ15 EQ15 5 Band Car Audio Equalizer 9V
Brand: Gravity
SKU: GR-EQ15

★★★★★4.2 (208 reviews)

Fine-tune your car audio with 7 adjustable EQ bands, 6-channel output, and built-in fader control in a compact half-DIN chassis.

$58.99*

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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 GR-EQ15 is a half-DIN car audio equalizer built for drivers who want hands-on control over their sound system's frequency response. It features 7 independently adjustable EQ bands spanning from 50 Hz to 16 kHz, each with a generous ±12 dB range of boost and cut. This spread covers deep bass through the upper treble, allowing you to tame problem frequencies caused by road noise, speaker placement, or cabin acoustics. The built-in fader control lets you balance output between front and rear speakers without needing a separate component, while the master volume knob provides quick overall level adjustment.

On the output side, the GR-EQ15 delivers a 6-channel signal through dedicated front, rear, and subwoofer RCA connections, all gold-plated for corrosion resistance and reliable contact. With a maximum output voltage of 7V and 20 dB of headroom, the unit sends a clean, high-level signal to downstream amplifiers, reducing the noise floor and minimizing the chance of signal overload. The compact half-DIN chassis makes installation straightforward in vehicles with limited dash space, and the 9V power requirement keeps it compatible with standard car audio wiring setups.

Key Features

Front, Rear and Subwoofer OUTPUT

6 Channel OUTPUT

20 dB Headroom Eliminated Signal Overload

High Voltage (Max Output Voltage - 7V) Gold Plated Pre-Amp RCA

7 Fully Adjustable -12 dB to +12 dB EQ Bands (50 Hz, 125 Hz, 320 Hz, 750 Hz, 2. 2 kHz, 6 kHz, 16 kHz) with Built-in Fader Control

Specifications

Brand

Gravity

Model

GR-EQ15

Type

1/2 DIN Car Audio Equalizer

EQ Bands

7 (50 Hz, 125 Hz, 320 Hz, 750 Hz, 2.2 kHz, 6 kHz, 16 kHz)

EQ Range

-12 dB to +12 dB

Output Channels

6 (Front, Rear, Subwoofer)

Max Output Voltage

7V RMS

Headroom

20 dB

RCA Connectors

Gold Plated

Controls

Master Volume, Built-in Fader

Operating Voltage

Pros & Cons

👍 Pros

Seven independently adjustable EQ bands provide precise frequency shaping across the full audio spectrum.
20 dB of headroom prevents signal clipping and distortion even at high output levels.
Gold-plated RCA connectors with 7V max output deliver a clean, strong signal to amplifiers.
Compact half-DIN form factor fits easily in limited dashboard or under-seat spaces.
Built-in fader control eliminates the need for a separate front-to-rear balance unit.

👎 Cons

The labeling as a "5 band" equalizer when it has 7 bands creates confusion about the actual product specifications.
No digital display or visual feedback for EQ band positions, requiring adjustment by ear.
Lacks a built-in crossover, so subwoofer output sends a full-range signal unless filtered downstream.
9V operation limits compatibility with some higher-end head units that output at line level without a dedicated EQ power feed.

Frequently Asked Questions

How many EQ bands does the Gravity GR-EQ15 actually have?

Despite being marketed as a 5-band equalizer, the GR-EQ15 features 7 fully adjustable frequency bands at 50 Hz, 125 Hz, 320 Hz, 750 Hz, 2.2 kHz, 6 kHz, and 16 kHz, each adjustable from -12 dB to +12 dB.

What outputs does the GR-EQ15 provide?

It offers 6-channel output across three zones: front, rear, and subwoofer, all through gold-plated RCA connectors with a maximum output voltage of 7V.

What size chassis does the GR-EQ15 use?

It uses a 1/2 DIN form factor, making it compact enough to fit in tight dashboard spaces or mount under a seat.

Does the GR-EQ15 include volume or fader control?

Yes, it has both a master volume control and a built-in fader control for balancing front-to-rear speaker output.

What voltage does the GR-EQ15 require?

The unit operates on a standard 9V car audio power supply.