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Hertz MP 300 D4.3 + Free 12" Sealed Enclosure

12" Mille Pro Series DVC 1200W Dual 4 Ohm Car Subwoofer

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• 1200 Watts Max
• 600 Watts RMS
• Water-repellent pressed paper cone material
• Aluminum alloy basket
• 4 Ohm Impedance
• Top-mount depth: 6-1/2"

Learn more about the mp300d43_mdfs12

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This item has been discontinued

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Description


Hertz brand icon

Authorized dealer

Hertz MP 300 D4.3

1200W Peak (600W RMS) 12" Mille Pro Series Dual 4-ohm Car Subwoofer
Quantity: 1

Product Details:

  • 12" Dual 4 ohm Mille Pro Series Subwoofer
  • Power Handling:
    • Peak: 1200 watts
    • RMS: 600 watts
  • Mineral-Injected Paper cone with mineral powders
  • Butyl Rubber surround
  • Ergonomic, compact design for sealed box enclosures
  • Exponential V-cone with optimized geometry
  • Extremely acoustically transparent anti-resonant aluminium alloy basket
  • CNC machined elegant diamond-cut basket edge featuring the Hertz logo
  • Terminal block accepting cables up to 8 AWG
  • 4-layer CCAW voice coil on TIL-P former
  • Venting holes behind the voice coil winding
  • 17 mm Xmax
  • High-density flux Ferrite magnet motor structure
  • High performance compact motor with a superior magnetic field
  • Resonance Frequency (Fs): 24 Hz
  • Sensitivity: 86 dB
  • Recommended sealed box volume: 0.99 cubic feet
  • Recommended ported box volume: 1.27 cubic feet
  • Top-mount depth: 6.46"
  • Cutout diameter: 11.3"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

Atrend 12SQL

Empty Single 12" Medium Sealed Subwoofer Enclosure
Quantity: 1

Product Details:

  • 12" Single Medium Sealed Subwoofer Enclosure
  • Durable 3/4" Medium Density Fiberboard (MDF) construction
  • Mitered edge construction provides cleaner finish
  • Miter joints feature over 41% more surface area
  • More surface area translates into a stronger bond
  • Dado joints offer 80% increase in surface area
  • Built using trick glue for up to 3600 PSI holding ability
  • Premium charcoal carpet and silver spring-loaded terminal cups
  • Maximum subwoofer mounting depth: 12.4"
  • Subwoofer cutout diameter: 11.12"
  • Total box volume: 1.00 cubic feet
  • Dimensions: 13.50" L x 13.50" H x 13.50" W
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

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Specifications & Details


Subwoofer Specifications
Subwoofer Size
12"
RMS Power Handling
600 watts
Peak Power Handling
1200 watts
Sensitivity
86 dB
Subwoofer Design
Round / Circle
Enclosure Specifications
Box Type
Sealed
Number of Subwoofers
1
Box Style/Shape
Square/Rectangle
Wood Thickness
3/4"
Number of Terminals
1
Terminal Type
Spring posts (banana clip ready)
Box Exterior Color
Charcoal
Box Finish
Carpet
Second Width
13.50"
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

MP 300 D4.3, MDFS12

Weight:

40.00lbs

Internal SKU:

mp300d43_mdfs12

Internal Product ID:

181707

Customer Ratings & Reviews


Hertz MP 300 D4.3 + Free 12

5 star
70%
4 star
20%
3 star
10%
2 star
0%
1 star
0%



Durability
4.7
Value
4.7
Features
4.5
Design
4.6
Usability
4.9

Customer Reviews

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Nice box

The following review is for 12SQL, which is a part of the bundle you are viewing.

This is a really nice box. I have a Boston Acoustics G5 in it and it pounds!!! I wanted to save space in trunk by switching to small sealed box instead of the big ported I was using previously. I thought I would be taking a hit in SPL but surprisingly I didn't. Just a gain in SQ. And I gained about 50% more trunk space.

By Dangelo on September 21, 2017 Checkmark Icon Verified purchase

42 found this helpful


Good value

The following review is for 12SQL, which is a part of the bundle you are viewing.

Great box for the value. I have a JL 12w6 in it and it sounds amazing. My one issue was the aesthetics, it arrived looking like it needed a bit more carpeting but for the price and sound quality i’ll take it.

By Alex on October 20, 2022 Checkmark Icon Verified purchase

39 found this helpful


Nice box

The following review is for 12SQL, which is a part of the bundle you are viewing.

Good quality good solid box sub sounds awesome in this box

By Mike on December 12, 2023 Checkmark Icon Verified purchase

38 found this helpful


Great Box!

The following review is for 12SQL, which is a part of the bundle you are viewing.

I have an Alpine Type-X 12" Subwoofer that I had put in a ported box. It sounded great and it hit hard. Problem was that it was taking up to much of my trunk space and I wanted some back so I started searching for a sealed box.
I purchased this box after looking through several reviews of the boxes on Amazon. They appeared to be hit or miss. This box appeared solid and a different sized box from this manufacturer had good reviews so I gave it a try.
The box arrived well packaged and in perfect condition and appeared to be well constructed. The Atrend badge easily unscrews off if you would like to remove it. It had enough room on it that I was able to mount my Eclpise ZA1200 directly on to it. Great box for the price.
Now that I have my sub in the sealed box, I have some more trunk room although I sacrificed some bass (not as loud as it was) but I was expecting that to happen.
It is a great box!

By Martin on July 28, 2017 Checkmark Icon Verified purchase

38 found this helpful


The following review is for 12SQL, which is a part of the bundle you are viewing.

I just received two of these boxes today. I put them in my 2017 Chevy Camaro. I have 2 Rockford fosgate P 2's and I have a Rockford fosgate T750X amp pushing them. Have them wired at 1 ohm. Man my system sound so good. If you dont have much trunk space this is the way to go. And the Rockford fosgate setup is amazing.

By Raymond on February 3, 2023 Checkmark Icon Verified purchase

37 found this helpful


Solid!

The following review is for 12SQL, which is a part of the bundle you are viewing.

I put my older P2D4-12 in this after gluing polyfill to the insides. Hits harder than I remember it hitting before. Attend makes SOLID boxes.
Thank you.

By Sozo on November 11, 2017 Checkmark Icon Verified purchase

38 found this helpful


Quality craftsmanship, and a great price!!!

The following review is for 12SQL, which is a part of the bundle you are viewing.

This Atrend 12SQL is a great box for any budget build. Even though it's listed as medium duty I've sampled various 12" subwoofers in this box with different amplifiers at various power levels and not once did it disappoint. This is a box you can install with little or no modifications and be pleasantly happy with the lows it produces.

By David on June 15, 2023 Checkmark Icon Verified purchase

30 found this helpful


The following review is for 12SQL, which is a part of the bundle you are viewing.
By Josef on December 3, 2024 Checkmark Icon Verified purchase

6 found this helpful


The following review is for 12SQL, which is a part of the bundle you are viewing.
By Jason on November 14, 2024 Checkmark Icon Verified purchase

5 found this helpful


The following review is for 12SQL, which is a part of the bundle you are viewing.
By Karl on June 27, 2025 Checkmark Icon Verified purchase

2 found this helpful



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