Hertz MPS 300 S4 Mille Series 12" Subwoofer

Hertz MPS 300 S4 Mille Series 12" Subwoofer

MPS 300 S4 shallow subwoofer has been designed to achieve exceptional performance even when there is very little space available to install the subwoofer box.

MPS 300 is optimized to work in ultra-compact sealed boxesstarting from only 22,7 Lt (0.8 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 has 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 the spider and coil. This solution has allowed the movement of the magnetic group inwards, reducing the depth and at the same time maximizing cone linear excursion.

Features

• Ultra-shallow overall depth
• 500W continuous power handling
• Optimized for extremely-compact sealed enclosure 20-24L (0.7-0.8CF)
• 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

Technical Specifications
Size mm (in.): 300 (12)
Power Handling - Continuous W: 500
Power Handling - Peak W: 1000
Impedance Ohm: 4
Depth mm (in.): 88 (3.46)
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.): 156 x 60 x 36 (6.14 x 2.36 x 1.42)
Weight of one component kg (lb.): 6,64 (14.64)
Magnet: High density flux ferrite
Cone: Polypropylene
Xmech mm (in.): 20 (0.79)

Electro-acoustic Specifications
D mm: 262,59
Xmax mm: 16,80
Re Ohm: 3,4
Fs Hz: 23
Le mH: 3,75
Vas I: 62,13
Mms g: 320
Cms mm/N: 0,15
BL T*m: 18,7
Qts: 0,42
Qes: 0,45
Qms: 6,3
Spl dB: 85

Physical Specifications

A: 318,3: 12.53 B: 282,5: 11.12 C: 108,88: 4.29 D: 88: 3.46 E: 291,8: 11.49 F: 42,6: 1.68

Frequency Response