Hertz MPS300S4 – MILLE PRO SHALLOW SUBWOOFER 4 OHM MPS 300 S4

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 300 S4 is optimized to work in ultra-compact sealed boxes starting from only 22.7 Lt (0.8 Cf). A typical example is a subwoofer enclosure under the rear bench of utes, where the space and the height are limited. Mille PRO shallow subwoofer have a depth / performance ratio never achieved before thanks to the impressive cone excursion capacity which is 20 per cent 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.

FEATURES 

1. Ultra-shallow overall depth

 2. 500W continuous power handling

 3. Optimized for extremely-compact sealed enclosure 20-24L (0.7-0.8CF)

 4. Air Intercooling Revolution (A.I.R.) prevents air-compression-related limitations

 5. Unrivalled mechanical excursion, +20% over traditional designs

 6. Six-layer copper voice coil (38mm/1.5 in.) ensures high thermal capacity

 7. Non-vented rear design allows reduced enclosure depth

 8. Robust screw-less mesh grille included with black screws provided

 9. Die-cast aluminum frame

10. Solid horizontal 8AWG spring-loaded terminals

11. EID: Scan, Discover, Identify

 

TECHNOLOGIES

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.

 

TECHNICAL SPECS

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 SPECS

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