Hertz – MPS 250 S4



10 Inch Subwoofer
  • 10″ Subwoofer with single 4-Ohm voice coil
  • Frequency response: 25-400 Hz, RMS: 500W – Maximum Power: 1000W
  • Woofer Cone Material: Polypropylene – Magnet: High density flux ferrite
  • More Features!

10 in stock

SKU: MPS 250 Categories: , ,


Subwoofer Features

Hertz MPS 250 S4 Subwoofer

Subwoofer Features

Hertz MPS 250 S4 Mille PRO 10″ Black Car Subwoofer

Mille PRO shallow subwoofers have been designed to achieve exceptional performance even when there is very little space available to install the subwoofer box. MPS 250 S4 is optimized to work in ultra-compact sealed boxesstarting from only 14 Lt (0.49 Cf). A typical example is a subwoofer enclosure under the rear bench of pickup trucks, where the space – and the height – are limited. Mille PRO subwoofer have a depth/performance ratio never achieved before thanks to the impressive cone excursion capacity which is 20% higher than a traditional design. This exceptional target has been achieved thanks to the ingenious suspension group design featuring a dedicated support structure for spider and coil. This solution has allowed to move the magnetic group inwards, reducing the depth and at the same time maximizing cone linear excursion.

Key Features

  • eID (Elettromedia Identification)
    The exclusive technology providing the traceability of the Mille.3 products from their birth on. Once the test phase has been passed, the code linked to destination country/market is applied. When purchasing the product, by scanning the code, the user can check through the web the information about the product and can log into the registration page.
  • Air Innovative Route
    Hertz R&D has developed the proprietary AIR (Air Intercooling Revolution) technology, optimizing the fluid dynamics inside the voice coil inner chamber and the magnetic group to minimize the internal compression of air and maximize cooling capacity.
  • Grille Provided
    Provided with MPS 250 there is a full metal sturdy structure composed by a solid cast aluminium ring and a steel mesh black grille featuring an elegant diamond-cut Hertz Logo Mounting screws totally hidden for a superior integration within the car cabin.


  • Ultra-shallow overall depth
  • 500W continuous power handling
  • Optimized for extremely-compact sealed enclosure 12-14L (0.4-0.5CF)
  • Air Intercooling Revolution (A.I.R.) prevents air-compression-related limitations
  • Unrivalled mechanical excursion, +20% over traditional designs
  • Six-layer copper voice coil (38mm/1.5 in.) ensures high thermal capacity
  • Non-vented rear design allows reduced enclosure depth
  • Robust screw-less mesh grille included with black screws provided
  • Die-cast aluminum frame
  • Solid horizontal 8AWG spring-loaded terminals
  • EID: Scan, Discover, Identify


Subwoofer Specifications

Hertz MPS 250 S4 Subwoofer
Voice Coil Single
DC Resistance (Ω) 4 ohm (Ω)
Peak Power (Watts) 1000W
Continuous Power (RMS) 500W
Effective Frequency Range 25 – 400 Hz
Cone Material Polypropylene
Surround Material
X-MAX 16, 8 mm
Thiele/Small Parameters
Resonance Frequency (Fs) 29
Mechanical Q Factor (Qms) 5, 6
Electrical Q Factor (Qes) 0, 52
Total Q Factor (Qts) 0, 48
Port Information
Free Air
Recomended Box Volume Sealed
Recomended Box Volume ported
Mounting Hole Diameter 9.12
Top Mount Depth 3.25
Bottom Mount Depth 4.06
Weight 12.8125
Grille Yes

Vehicle Information

Additional information

Weight 12.81 lbs
Dimensions 13.00 × 6.00 × 13.00 in
Website Bullet 2

Product Type:Subwoofer

Website Bullet 1