Hertz Mille Pro Shallow MPS 250 S4 Shallow 10 in. (250mm) 4Ω SVC Subwoofer (Single)

Hertz MPS 250 S4 is a 10" Mille PRO shallow-mount subwoofer engineered for high output and strong low-end performance when depth is limited. It’s built specifically for ultra-tight installations (under-seat/under-bench truck enclosures, shallow prefab boxes, and space-restricted custom builds) while still delivering serious cone travel and clean bass.

Optimized for ultra-compact sealed enclosures starting at 14 L (0.49 cu ft), the MPS 250 S4 achieves a depth/performance ratio that traditional shallow subs struggle to match. Its suspension group uses a dedicated support structure for the spider and coil, allowing the motor assembly to sit farther inward—reducing overall depth while maximizing linear excursion. The result is a compact sub with excursion capacity claimed to be ~20% higher than conventional designs in this footprint.

Key Performance Features

• Shallow 10" subwoofer designed for tight-depth enclosures
• Ultra-compact sealed box capable: from 14 L (0.49 cu ft)
• High excursion design: suspension/motor architecture optimized for linear travel
• Single 4Ω voice coil (SVC) for straightforward amplifier matching
• Polypropylene cone for durability and consistent response
• High density flux ferrite motor

Enclosure & Fitment Notes

• Recommended alignment: sealed
• Minimum sealed volume: 14 L (0.49 cu ft)
• Install depth: 82.6 mm (3.25")
• Ideal for under-seat / under-bench pickup truck sub boxes and shallow custom enclosures

Technical Specifications

• Size: 250 mm (10")
• Power Handling (Continuous): 500 W
• Power Handling (Peak): 1000 W
• Impedance: 4 Ω
• Voice Coil: Single
• Voice Coil Ø: 38 mm (1.5")
• Frequency Response: 25 – 400 Hz
• Magnet: High density flux ferrite
• Cone: Polypropylene
• Install Depth: 82.6 mm (3.25")
• Magnet Size (D x d x h): 134 x 55 x 36 mm (6.28 x 2.17 x 1.42 in.)
• Xmech: 20 mm (0.79")
• Weight: 5.11 kg (11.27 lb)

Physical Dimensions

• A: 274.5 mm (10.81")
• B: 231.6 mm (9.12")
• C: 103.2 mm (4.06")
• D (Depth): 82.6 mm (3.25")
• E: 244.6 mm (9.63")
• F: 38.9 mm (1.53")

Buyer Use Cases

• Pickup truck under-seat / under-bench subwoofer enclosures
• Space-limited SUVs and cargo areas where depth is the limiting factor
• Sealed SQ/SPL hybrid builds needing compact enclosure volume

What’s Included

• (1) Hertz MPS 250 S4 10" shallow subwoofer
• Manufacturer documentation

Why Buy From MCOR Automotive

• Shallow sub enclosure + amp matching support
• Real-world install guidance (box volume, power, and tuning recommendations)
• Fast fulfillment with knowledgeable audio specialists

Physical Specs

A	274,5	10.81
B	231,6	9.12
C	103,2	4.06
D	82,6	3.25
E	244,6	9.63
F	38,9	1.53

Frequency response