Gravity GR-EQ19 1/2 DIN 9-Band Car Audio Equalizer

The Gravity GR-EQ19 is a compact car-audio equalizer designed to give an aftermarket system more direct tonal control. Its nine dedicated EQ bands let the installer adjust selected bass, midrange, and treble frequencies rather than relying only on a head unit's basic tone controls. It is intended for systems where the listener wants to tailor the sound to the vehicle, speakers, music source, and personal preferences.

The GR-EQ19 covers center frequencies from 50 Hz through 16 kHz, addressing low-frequency weight, vocal-range balance, and upper-frequency detail. Individual controls at 50, 120, 250, 500 Hz, 1, 2, 4, 8, and 16 kHz provide a straightforward analog-style adjustment layout. This makes it useful for correcting broad tonal imbalances in a vehicle cabin or refining the character of an existing sound system.

An active-gain preamp section and adjustable input sensitivity are included to help integrate the equalizer with compatible source units. The unit is listed with a master volume control and up to 9V RMS output. These controls provide signal-level adjustment as part of the system-tuning process.

The GR-EQ19 is configured for multi-amplifier and multi-zone car-audio layouts with front, rear, and subwoofer outputs. It provides three stereo RCA outputs, allowing separate signal paths for those system sections. A built-in AUX/DVD source-select switch adds a way to select between the listed auxiliary and DVD inputs without changing the main wiring arrangement.

With its 1/2 DIN format, this equalizer is suited to custom dash, console, or under-dash installations where a full-size receiver opening is not required. It can be placed between a compatible source unit and external amplifiers as part of a broader upgrade path. Careful level setting and moderate EQ adjustments are recommended when integrating it into amplified systems.

Key Features

• 9-Band Equalizer: Provides separate adjustment points from bass through treble.
• 50 Hz To 16 kHz Coverage: Targets key frequencies across the audible music range.
• Active-Gain Preamp: Adds signal-level management for compatible audio systems.
• Up To 9V RMS Output: Supports a strong preamp-level signal path.
• Three Stereo RCA Outputs: Supports front, rear, and subwoofer signal routing.
• AUX/DVD Source Selector: Switches between the listed auxiliary and DVD inputs.

Design & Installation

The GR-EQ19 uses a compact 1/2 DIN form factor intended for vehicle audio installations with limited mounting space. Published product information confirms the compact format but does not specify enclosure materials or faceplate construction. Its front-panel equalizer controls, master volume control, and input-selection switch are designed for direct system adjustment.

Install the unit in an accessible location and connect it within a compatible RCA-based signal chain before external amplifiers. Use the three stereo RCA outputs for front, rear, and subwoofer system sections as needed, then set input sensitivity and master volume carefully to match the source unit and amplifiers. Professional installation is advisable when adding the unit to a complex or high-output car-audio system.