Hertz MPBX300S2 12" Subwoofer Ultra-Shallow Sealed Enclosure

Professional 12-inch subwoofer engineered for space-constrained installations

The Hertz MPBX300S2 features a 12-inch (300mm) subwoofer housed in an ultra-shallow sealed enclosure optimized for the MPS 300 S2 subwoofer driver. This system combines robust construction with space-efficient design, utilizing 15mm thick wood panels for structural integrity. The enclosure incorporates internal sound-absorbing material to reduce acoustic resonances while effectively increasing the box's acoustic volume.

The 2S² (2 Sides/2 Sounds) design allows selection between down-firing mounting with supplied feet and hook-and-loop inserts for low-frequency extension, or up-firing installation for punch and definition. Panel-to-panel internal bracing with solid corners minimizes resonances, while round corners facilitate placement.

Key Specifications

• Driver size: 300mm (12-inch) subwoofer
• Power handling: 500W continuous / 1000W peak
• Impedance: 2 ohms
• Voice coil diameter: 38mm (1.5 inches)
• Frequency response: 25-400Hz
• Mechanical excursion: 20mm (0.79 inches)
• Enclosure depth: 118mm (4.65 inches)
• Weight: 10.8kg (23.8 lbs)

Features & Benefits

• Ultra-shallow 118mm profile - Enables installation in tight spaces where standard subwoofer boxes cannot fit
• 2S² dual firing system - Choose down-firing mounting for low-frequency extension or up-firing for punch and definition
• 15mm thick wood construction - Provides structural robustness and minimizes cabinet resonances
• Internal sound-absorbing material - Reduces acoustic resonances and virtually increases box volume
• Panel-to-panel internal bracing - Solid corners minimize resonances for cleaner bass reproduction
• SSP Sub Smart Plug - Features both plug-and-play terminal block and traditional push terminals for versatile connections
• Supplied mounting feet - Hook-and-loop inserts included for down-firing configuration

Technical Specs

• Size: 300mm (12 inches)
• Continuous Power: 500W
• Peak Power: 1000W
• Impedance: 2 ohms
• Voice Coil Diameter: 38mm (1.5 inches)
• Frequency Response: 25-400Hz
• Magnet Size: 134 x 55 x 36mm (6.28 x 2.17 x 1.42 inches)
• Magnet Type: High density flux ferrite
• Cone Material: Polypropylene
• Mechanical Excursion: 20mm (0.79 inches)
• Depth: 118mm (4.65 inches)
• Voice Coil Type: Single
• Weight: 10.8kg (23.8 lbs)

Frequently Asked Questions

**What's the difference between up-firing and down-firing modes? ** Down-firing mounting increases low-frequency extension while up-firing installation provides more punch and definition.

**What mounting accessories are included? ** Supplied feet with hook-and-loop inserts are provided for down-firing mounting configuration.

**What amplifier power is recommended? ** This subwoofer handles 500W continuous power at 2 ohms impedance for optimal performance.

**How shallow is this enclosure compared to standard subwoofers? ** At 118mm depth, this ultra-shallow design fits installations where traditional enclosures cannot.

**What connection options does the SSP Smart Plug provide? ** Features both plug-and-play terminal block and traditional push terminals for connection versatility.

Compatible With

• Amplifiers rated for 500W continuous at 2 ohms
• Installations requiring ultra-shallow subwoofer solutions
• Vehicles with limited mounting depth available
• Custom audio installations with space constraints