Hertz MPG300-3 PRO 12" Subwoofer Grille

The Hertz MPG300-3 PRO is an optional protective grille made for compatible 12-inch Hertz Mille PRO subwoofers. It provides a finished appearance while helping protect the woofer from accidental contact in a vehicle installation. This is a passive accessory and does not replace the subwoofer itself.

It is intended for listeners building or refining a Hertz Mille PRO bass system and looking for a purpose-built grille rather than a universal cover. The 300 mm format corresponds to a 12-inch subwoofer application. Its design is focused on physical protection and a coordinated Mille PRO appearance.

Because the MPG300-3 PRO is a grille, it does not add power, change impedance, or create bass on its own. Its role is to cover the front of the compatible subwoofer while allowing it to remain part of the system. This makes it useful in cargo areas and other locations where the woofer may be exposed.

The grille is made from die-cast aluminum and uses a diamond-cut aluminum Hertz logo. The metal construction gives the accessory a substantial, system-matched presentation. It is designed specifically as an optional grille for Hertz Mille PRO woofer applications.

Add the MPG300-3 PRO when a compatible Hertz 300 mm Mille PRO subwoofer is already selected and the installation calls for front protection. It is a practical finishing component for an enclosure or custom panel where the subwoofer is visible. Confirm mounting compatibility with the exact woofer and enclosure before installation.

Key Features

• 12-Inch Format: Designed for 300 mm Hertz Mille PRO woofer applications.
• Optional Protection: Helps shield an exposed subwoofer from accidental contact.
• Die-Cast Aluminum: Provides a durable metal grille construction.
• Diamond-Cut Logo: Features a machined-look aluminum Hertz badge.
• Mille PRO Match: Complements compatible Hertz Mille PRO subwoofer systems.
• Passive Accessory: Requires no power, wiring, or amplifier connection.

Design & Installation

The MPG300-3 PRO uses die-cast aluminum construction with an aluminum Hertz logo finished in a diamond-cut style. Its purpose-built 300 mm design is intended to provide a cohesive visual match with Hertz Mille PRO woofer installations. The grille is an accessory, not a replacement driver or enclosure component.

Use this grille only after confirming it matches the specific Hertz Mille PRO 12-inch woofer and available mounting space in the enclosure or installation panel. Verify grille clearance before final mounting so it does not interfere with the surrounding trim or enclosure design. No electrical wiring is required because the grille is a mechanical protective component.