Hertz Mille Pro MPS 250 S4 1000W 4Ω 10" Sub Driver

MPS 250 is optimized to work in ultra-compact sealed boxes, starting from only 14 Lt (0.49 Cf). A typical example is a subwoofer enclosure under the rear bench of pickup trucks, where space—and height—are limited.

The Mille PRO shallow subwoofer offers a depth/performance ratio never achieved before, thanks to its impressive cone excursion capacity, which is 20% higher than a traditional design.

This exceptional performance has been achieved through an ingenious suspension group design, featuring a dedicated support structure for the spider and coil. This innovation allows the magnetic group to be moved inwards, reducing the depth while maximizing cone linear excursion.

↓↓↓ See below for more Info, Features, Specs and Warranty ↓↓↓

Technical Specs:

Size mm (in.) 250 (10)
Power Handling - Continuous W 500
Power Handling - Peak W 1000
Impedance Ohm 4
Depth mm (in.) 82,6 (3.25)
Voice Coil Type single
No Filter Component Subwoofers
Voice Coil Ø 38 (1.5)
Frequency Response Hz 25 - 400
Magnet size D x d x h mm (in.) 134 x 55 x 36 (5.28 x 2.17 x 1.42)
Weight of one component kg (lb.) 5,11 (11.27)
Magnet High density flux ferrite
Cone Polypropylene
Xmech mm (in.) 20 (0.79)

Electro-Acoustic Specs:

D mm 216,6
Xmax mm 16,8
Re Ohm 3,3
Fs Hz 29
Le mH 3,65
Vas I 21,2
Mms g 234
Cms mm/N 0,11
BL T*m 17,3
Qts 0,48
Qes 0,52
Qms 5,6
Spl dB 83,5

Physical Specs:

Overall diameter (A) 274,5 mm 10.81 in.
Mounting diameter (B) 231,6 mm 9.12 in.
Overall height (C) 103,2 mm 4.06 in.
Mounting Depth (D) 82,6 mm 3.25 in.
Driver Displacement 1 l 61 cu ft
Grille nominal diameter (E) 244,6 mm 9.63 in.
Grill height (F) 38,9 mm 1.53 in.