
2 YEAR WARRANTY
Hertz MP 300 D2.3 Mille Pro 12" 30cm Car Subwoofer Sub 2ohms 600w RMS
MP 300 D2.3 PRO Subwoofers JL Audio Sub
Outstanding performance in a compact size, this is the target of Mille Pro car audio subwoofers. On the strength of its know-how acquired with Mille Legend, the R&D team has optimized the production process to offer the “Hertz Sound Experience” to a wider audience using part of the technologies and materials of the flagship line.
There are no reviews for this product.

Product Information
The MP 300 D2.3 cone is made by pressing paper pulp with the injection of mineral powders, the same construction technique used for Legend. The V-cone® profile increases rigidity, allowing the cone to function like a piston. Surround materials consist of high-purity IIR-butyl rubber. Like the Legend ML2000.3 and ML2500.3, the Mille PRO subwoofers are built with Boundary Free Surround technology allowing for a greater emission surface with equal diameter, generating higher sound pressure. The compact 6-spoke aluminum alloy anti-resonant basket is the same as the top model ML 2500.3 and contributes to the subwoofer’s mechanical damping, being absolutely transparent to the sound. The 65-mm 4-layer voice coil is higher than 60 mm and wound in a TIL-P former, thus delivering high linear displacement. The 2 Ω + 2 Ω DVC impedance configuration improves versatility to match any amplifier system. The air cooling and decompression system avoids the need for a centre hole on the bottom plate with three advantages:
- Better thermal inertia to ensure low operating temperatures during musical transients;
- Maximization of the magnetic field induced to the coil with the same overall motor dimensions. Thanks to a greater amount of iron in the pole the likelihood of magnetic saturation decreases exploiting the maximum flux density generated from the magnet;
- Possibility to install the subwoofer right on the box wall, taking full advantage of its minimal dimensions. A damping rubber disk, provided with the product, secures the subwoofer to the box and ensures air exchange for the 10 vents on the bottom.
The holes behind the voice coil winding and the 10 vents on the bottom plate ensure greater air exchange to the coil inner layers and work in synergy with an innovative assembly system. It forces the air to pass through the air gap to keep the coil operating temperature low, even with the most extreme musical programs. The terminal uses solid push connectors with an antishort circuit cover accepting cables up to 8 AWG to provide ultra-low wiring resistance in low impedance configurations (1ohm).
- Size mm (in.) 300 (12)
- Power Handling - Peak W 1200
- Power Handling - Continuous W 600
- Impedance Ω 2+2
- Sensitivity dB SPL 86
- Voice coil Ø mm (in.) 65 (2,5)
- Xmax mm ± 16,00
- X-mech mm (in.) ± 26 (1.02)
- Re Ω 1 (2 coils in PARALLEL)
- Fs Hz 23
- Vas l 88
- Qts 0,48
- Qes 0,53
- Qms 5,9
- Spl dB 86
Specification
What's Included
- Hertz MP 300 D2.3 PRO
You may also like

JL Audio 15W0v3-4 15" 38cm W0 Series Car Sub Subwoofer Driver 4ohm 500w RMS
15W0v3-415-inch (380 mm) Subwoofer Driver, 4 Ω
£229.00 LOW STOCK
Edge 12 Inch Active Bass Box Sub Subwoofer Ported Enclosure EDB12A 300w RMS
EDB12A-E012 Inch Active Enclosure
£115.00 OUT OF STOCK
Hertz Cento CS 250 S2 10" 25cm 2ohm Subwoofer Sub 300w RMS
Hertz Cento CS 250 S2The new CS 250 s2Cento subwoofer is the perfect enhancement to every sound system, to fully enjoy the authentic Hertz Sound Experience!
£169.00 IN STOCK
Pioneer TS-A300B Sub 12" Enclosed Slot Port Bass Box Subwoofer 300w RMS
TS-A300B30cm enclosed slot-type port subwoofer
£169.00 OUT OF STOCK
Match UP W8BMW-S BMW 1, 2, 3, 4, 5 X Series 8 Inch Underseat Subwoofers 200w RMS
MATCH UP W8BMW-SApproved compatibility with BMW ModelsPremium cars deserve premium sound – the basic speaker setup in BMW vehicles does not meet the expectations of ambitious music lovers in many cases
£239.00 IN STOCK
Kicker 48TRTP82 8 Inch Sub CompRT 2Ohm Subwoofer Bass Box Enclosure 300w RMS
Down-Firing 8" CompRT 2-Ohm Enclosure with passive radiator48TRTP82Fitting perfectly under your truck seat or in the trunk, ultra-efficient TRTP™ Down-Firing Loaded Enclosures deliver huge bass without taking up needed cargo room. They come loaded with a passive reFLEX™ subwoofer and CompRT active sub that provides extremely low bass.
£259.00 LAST ONE
Kicker 12 Inch Sub L7T Subwoofer Slim Down Firing Loaded Enclosure 2ohm 600w RMS
KA49L7TDF122L7T 12" DOWN FIRING LOADED ENCLOSURE - 2 OHM
£379.00 LAST ONE
Audison Prima APBX 10 AS2 Active 10" Subwoofer Sub Compact Enclosure 400w RMS
APBX 10 AS2 ACTIVE SUB BOXAmplified 10" Subwoofer in a Compact EnclosureThe Prima APBX 10 AS2 active subwoofer, with 10-inch driver,features a dedicated high performance amplification module which enhances all the passive box technologies, such as the 2S² (2 Sides / 2 Sounds) design, the Plug & Play terminal block and ultra-compact size.
£529.00 IN STOCK
Alpine SWC-D84T6 Underseat Subwoofer Sub Enclosure for Volkswagen Transporter T6
Alpine Adventure Audio – Your journey to a new sound experienceSubwoofer with Enclosure for Volkswagen T6.1 / T6
£169.00 LOW STOCK
Audison Prima APBX 8 DS Car 8" Bass Reflex Compact Subwoofer Enclosure 250w RMS
APBX 8 DSThe APBX 8 DS loaded enclosure provides the highest performance/ size ratio. For this purpose an 8.5 lt. sealed enclosure with a 4+4 Ω dual voice-coil configuration was adopted to exploit the full power of an AP5.9 bit (paralleling voice coils for a 2-ohm load) or with two pairs of AP8.9 bit bridged channels (one bridged pair of channels to each voice coil).
£309.00 IN STOCK
Pioneer TS-A250S4 Sub 10" 25cm Singal Voice Coil Subwoofer 400w RMS
TS-A250S425 cm 4Ω enclosure-type single voice coil subwoofer (1300W)
£60.00 OUT OF STOCK
Kicker Hideaway HS10 Sub 10" Compact Powered Active Underseat Subwoofer 180w RMS
Hideaway HS10The Hideaway HS10 is a compact powered 10-inch subwoofer that delivers surprising low frequency impact in a tough, all-aluminum frame.
£399.00 IN STOCK
Focal P20FSE Sub Flax Evo Series Slim Shallow 8 Inch 4 Ohm Subwoofer 200w RMS
Focal P 20 FSEFlax Evo Series shallow-mount 8" 4-ohm component subwoofer
£219.00 LAST ONE
Pioneer TS-A300S4 Sub 12" 30cm Single Voice Coil Subwoofer 500w RMS
TS-A300S430 cm 4Ω enclosure-type single voice coil subwoofer (1500W)
£76.00 IN STOCK
Audison Prima APBMW S8 4ohm Plug & Play Under Seat Subwoofer BMW Mini 150w RMS
APBMW S8-4SUBWOOFER FOR BMW-MINISubwoofers have been designed with electro-acoustic parameters that maximize performance for the factory box available below the seats. The ABS plastic basket, reinforced with fiberglass, and the acoustic structure featuring a front magnet, provide for a minimal installation depth for a perfect compatibility with the whole range. Two 5 mm polyurethane gaskets, supplied, allow the subwoofer to fit perfectly to the box, decoupling it from vibration.
£239.00 IN STOCK
Audison Prima APBMW S8 4ohm Plug & Play Under Seat Subwoofers Pair BMW 150w RMS
APBMW S8-4 PairSUBWOOFER FOR BMW-MINISubwoofers have been designed with electro-acoustic parameters that maximize performance for the factory box available below the seats. The ABS plastic basket, reinforced with fiberglass, and the acoustic structure featuring a front magnet, provide for a minimal installation depth for a perfect compatibility with the whole range. Two 5 mm polyurethane gaskets, supplied, allow the subwoofer to fit perfectly to the box, decoupling it from vibration.
£478.00 IN STOCK
Focal ISUB BMW Inside Series Direct Fit Sub Under Seat Subwoofer 4ohm
SUBWOOFERISUB BMW 4 is a subwoofer that delivers powerful bass thanks to its neodymium engine, a high performing Focal technology.
£199.00 IN STOCK
Eton B 195 NEO 8" Underseat Subwoofer for BMW E F Series & Mini 150w RMS Pair
B 195 NEO X2The B195 Neo underseat subwoofer is the universal solution for all BMW models.
£579.00 IN STOCK
Pioneer TS-WX130DA Under Seat Subwoofer Amplifier Space Saving Car Bass Box Sub
Pioneer TS-WX130DA50-watt compact powered subwooferSpace Saving Active Subwoofer with built-in Class-D Amplifier utilising DIGITAL BASS CONTROL for DEEP and DYNAMIC controlled bass. Easy to install thanks to its small footprint.
£149.00 OUT OF STOCK
JL Audio 13TW5v2-2 13.5 Inch TW5 Series Shallow Mount Subwoofer 2 ohm 600w RMS
13TW5v2-213.5-inch (345 mm) Subwoofer Driver, 2 Ω
£749.00 IN STOCK