Hertz MPBX 250 S2 – 10-Inch Peak 1000W Car Subwoofer
If you want serious bass without sacrificing boot space, the Hertz MPBX 250 S2 is built exactly for that. This 10-inch sealed subwoofer system combines a purpose-built enclosure with the acclaimed MPS 250 S2 driver to give you deep, controlled low-end that holds up at high volumes — all in a package that fits where most subs simply won't.
What is the Hertz MPBX 250 S2?
The MPBX 250 S2 is a complete sealed subwoofer system from Hertz's Mille Pro series. It pairs an ultra-shallow enclosure — built from 15mm thick wood with internal bracing and sound-absorbing lining — with the MPS 250 S2 subwoofer driver. The result is a ready-to-install bass solution that handles 500W continuously and peaks at 1000W, running at a 2 Ohm impedance. It's designed for cars where depth is limited but bass quality cannot be compromised.
Why Choose the Hertz MPBX 250 S2?
- ✅ Ultra-shallow design fits in tight spaces where standard enclosures won't
- ✅ 1000W peak power for impactful, room-filling bass in your car
- ✅ 2S² dual-orientation mounting — choose Down-Firing or Up-Firing to tune your sound
- ✅ SSP terminal block for quick, secure, plug-and-play wiring
- ✅ Internal sound-absorbing material and panel bracing for cleaner, tighter bass
- ✅ Includes mesh grille with adjustable logo position for a clean finish
- ✅ EID (Scan, Discover, Identify) for easy product verification
Key Features
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Size – 250mm (10 inches): A versatile subwoofer size that balances deep extension with compact dimensions.
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Power Handling – 500W Continuous / 1000W Peak: Handles serious amplifier output without distortion or thermal stress.
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Impedance – 2 Ohm: Draws more current from your amplifier for higher output efficiency.
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15mm Wood Enclosure: Thick, rigid cabinet walls reduce unwanted vibration and coloration.
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Internal Bracing: Panel-to-panel bracing with solid corners keeps the box acoustically inert.
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Sound-Absorbing Lining: Virtually increases internal volume and smooths out resonances.
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Round Corners: Easier to position and install in irregular boot spaces.
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Mesh Grille with Adjustable Logo: Protects the driver and looks sharp — even in reverse-install setups.
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Frequency Response – 25Hz to 400Hz: Covers the full bass range from sub-bass rumble to upper bass punch.
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Voice Coil – 38mm (1.5 in.) Six-Layer Copper: High thermal capacity for sustained high-power use.
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Xmech – 20mm: 20% more mechanical excursion than traditional designs for deeper, more dynamic bass.
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Depth – 118mm (4.65 in.): Genuinely shallow profile for under-seat or shallow-boot installations.
Advanced Technologies
2S² (2 Sides / 2 Sounds) Design: This is one of the most practical features on the MPBX 250 S2. The enclosure can be mounted in two orientations — Down-Firing using the supplied feet with hook-and-loop inserts, which extends low-frequency reach, or Up-Firing for a punchier, more defined bass character. You can tune the sound to your preference without changing any hardware.
SSP – Sub Smart Plug: The SSP terminal combines a plug-and-play terminal block with traditional push terminals on the same connector. This means you get a bulletproof, vibration-resistant connection that's also quick to wire up and easy to disconnect when needed. No loose wires, no rattling terminals.
A.I.R. – Air Intercooling Revolution: The MPS 250 S2 driver uses Hertz's A.I.R. technology to manage the heat generated during high-power operation. By preventing air-compression-related thermal buildup, the driver maintains consistent performance even during extended loud listening sessions.
Die-Cast Aluminum Frame: The driver basket is cast from aluminum rather than stamped steel. This keeps the frame rigid under high excursion loads and reduces the risk of flex-induced distortion at high volumes.
EID – Scan, Discover, Identify: Hertz's EID system lets you scan the product to instantly verify authenticity, access product documentation, and confirm specifications. Useful for installation reference and warranty validation.
Benefits
- 🔊 Deep, accurate bass that doesn't boom or blur at high volumes
- 📦 Compact enough to fit under seats or in shallow boot areas
- 🔧 Two mounting orientations let you tune bass character to your taste
- ⚡ High-efficiency 2 Ohm load gets more output from your amplifier
- 🌡️ A.I.R. technology keeps the driver cool during long, loud drives
- 🔌 SSP terminal makes wiring fast, clean, and rattle-free
- 🛡️ Thick wood enclosure and internal bracing deliver clean, resonance-free bass
- ✨ Mesh grille with adjustable logo keeps the install looking professional
Who Should Buy the Hertz MPBX 250 S2?
- Car audio enthusiasts who want Hertz Mille Pro performance in a space-saving package
- Owners of sedans, hatchbacks, or SUVs with limited boot depth
- Anyone running a high-power amplifier at 2 Ohm and needing a matched subwoofer system
- Installers looking for a plug-and-play sealed sub system with minimal tuning required
- Buyers who want a complete, ready-to-install solution — enclosure and driver together
Technical Specifications
| Specification |
Value |
| Model |
MPBX 250 S2 |
| Driver |
MPS 250 S2 |
| Size |
250 mm (10 in.) |
| Power Handling – Continuous |
500 W |
| Power Handling – Peak |
1000 W |
| Impedance |
2 Ohm |
| Voice Coil Diameter |
38 mm (1.5 in.) – Six-Layer Copper |
| Frequency Response |
25 – 400 Hz |
| Magnet Size (D × d × h) |
134 × 55 × 36 mm (6.28 × 2.17 × 1.42 in.) |
| Magnet Type |
High Density Flux Ferrite |
| Cone Material |
Polypropylene |
| Xmech |
20 mm (in.) |
| Driver Depth |
118 mm (4.65 in.) |
| Voice Coil Type |
Single |
| Enclosure Type |
Ultra-Shallow Sealed |
| Enclosure Wood Thickness |
15 mm (0.59 in.) |
| Weight |
10.8 kg (23.8 lb.) |
| Mounting Orientation |
Down-Firing / Up-Firing (2S² Design) |
| Terminal Type |
SSP – Plug-&-Play + Push Terminals |
| Grille |
Screw-less Mesh Grille (Adjustable Logo) |
| Series |
Hertz Mille Pro |
Why Choose Dolphin Accessories?
- ✅ 100% Genuine Products – Every product we sell is sourced directly from authorised distributors. No fakes, no grey imports.
- ✅ Expert Guidance – Our team understands car audio. We help you pick the right amp, sub, and wiring for your specific setup.
- ✅ Pan-India Delivery – We ship to every corner of India, with careful packaging to ensure your gear arrives in perfect condition.
- ✅ Secure Packaging – Premium products deserve premium protection. Every order is packed to survive the journey.
- ✅ After-Sales Support – Have a question after your purchase? We're here to help with installation tips, compatibility queries, and more.
- ✅ Trusted by Enthusiasts – Thousands of car audio lovers across India trust Dolphin Accessories for their upgrades.
Frequently Asked Questions
Q: What does MPBX 250 S2 stand for?
A: MPBX refers to the Mille Pro Box series from Hertz. The 250 indicates the 250mm (10-inch) driver size, and S2 denotes the second generation of the Mille Pro subwoofer line.
Q: Is the enclosure included with the subwoofer?
A: Yes. The MPBX 250 S2 is a complete system — the ultra-shallow sealed enclosure and the MPS 250 S2 driver are sold together as one unit.
Q: What amplifier power do I need for the Hertz MPBX 250 S2?
A: The subwoofer handles 500W continuously at 2 Ohm. An amplifier rated between 300W and 500W RMS at 2 Ohm is ideal for clean, reliable performance.
Q: Can I install this subwoofer under the seat?
A: The enclosure depth is 118mm (4.65 inches), which makes it suitable for under-seat installation in many vehicles, though fitment depends on your specific car model and seat height.
Q: What is the 2S² design?
A: 2S² stands for 2 Sides / 2 Sounds. It means the enclosure can be oriented in two ways — Down-Firing for deeper bass extension, or Up-Firing for a punchier, more defined sound. You choose based on your preference.
Q: What is SSP on the Hertz MPBX 250 S2?
A: SSP stands for Sub Smart Plug. It's a dual-terminal system that combines a plug-and-play terminal block with traditional push terminals, giving you a secure, vibration-resistant connection that's also easy to install.
Q: What is A.I.R. technology?
A: A.I.R. stands for Air Intercooling Revolution. It's a thermal management system in the MPS 250 S2 driver that prevents heat buildup caused by air compression during high-power use, keeping the driver performing consistently.
Q: Is the Hertz MPBX 250 S2 compatible with all car models?
A: The system is universally compatible and can be installed in most cars. The ultra-shallow design makes it especially suitable for vehicles with limited boot space, such as sedans and hatchbacks.
Q: Does the MPBX 250 S2 come with a grille?
A: Yes, a screw-less mesh grille is included. It features an adjustable logo position, which is useful if you choose a reverse-install orientation.
Q: What is EID on Hertz products?
A: EID stands for Scan, Discover, Identify. It's Hertz's product authentication and information system — scan the EID code to verify the product is genuine and access its full specifications.
Q: What is the frequency response of the MPBX 250 S2?
A: The system covers 25Hz to 400Hz, which spans deep sub-bass all the way through upper bass frequencies, giving you a full and well-rounded low-end response.
Q: Where can I buy the Hertz MPBX 250 S2 in India?
A: You can buy it right here at Dolphin Accessories. We offer 100% genuine Hertz products with pan-India delivery, secure packaging, and dedicated after-sales support.
