Hertz MP 300 D4.3 Mille Pro Series 12" subwoofer with dual 4-ohm voice coils

Name: Hertz MP 300 D4.3
Brand: Hertz
SKU: 301MP300D4
Price: 649.99 USD
Availability: InStock
Rating: 5.0 (6 reviews)

Item # 301MP300D4

When Hertz developed the Mille Legend Series, they utilized advanced design and high-quality construction to give...

Front

1/8

2/8

Only at Crutchfield

3/8

Only at Crutchfield. No pressure. And no commissions! Our experts help you get what you need and will never upsell you. No sweat. We do the research, so you get the best info, the best instruction, and the best tech support. All for free. No regret. With 60-day price protection and returns, you can feel good about your purchase – or send it back. Legendary Service. Since 1974.

Back

When Hertz developed the Mille Legend Series, they utilized advanced design and high-quality construction to give...

Item # 301MP300D4

Ships free today

Every order includes

Free lifetime tech support
60-day price-drop protection
60-day returns

In stock

$649.99 each

Add to cart

Other options

Add to wishlist

Compare products

Get questions answered fast & free

Expert help 400+ hours training Virginia-based

1-888-955-6000

by Crutchfield's Bob Bihlmayer

The evolution of technology

When Hertz developed the Mille Legend Series, they utilized advanced design and high-quality construction to give you award-winning performance. Now the Mille Pro Series brings you the technological advancements of the Legend Series at a friendlier price point. Their MP 300 D4.3 12" subwoofer handles high-output levels to help you build a system with truly huge bass, and it's designed for smaller enclosures so you get more installation options.

Designed for high fidelity

The MP 300 D4.3 features the technically advanced V-cone®, which keeps its shape even at high volume levels to minimize distortion. The pressed pulp of the cone is combined with mineral powders for additional rigidity, while the rubber surround keeps things under control. The sub's aluminum alloy frame is designed to minimize resonance so it'll produce rich, clear bass while handling tremendous amounts of power. With 600 watts of continuous power handling (1200 watts peak), the MP 300 D4.3 will produce enough low end to satisfy even the most demanding listener.

Big sound, small enclosure

This sub is designed for use in compact sealed enclosures so you'll get maximum bass from your space. You can even mount the sub directly to the back wall of the enclosure using the included rubber damping disc, allowing you to use even smaller enclosures. The sub's dual 4-ohm voice coils give you additional flexibility in setting up your system.

Product highlights:

12" subwoofer with dual 4-ohm voice coils
mineral-injected paper cone with rubber surround
aluminum alloy basket
power handling: 600 watts RMS (1200 watts peak)
sensitivity: 86 dB
top-mount depth: 6-1/2"
sealed box volume: 0.95 cu. ft.
grille not included
warranty: 2 years
MFR # MP 300 D4.3
Item # 301MP300D4

What's in the box:

Hertz MP 300 D4.3 owner's manual

One 12" Dual 4-ohm voice coil subwoofer
Ten 1-3/8" Allen Head Screws
4mm Allen Head bit
10 Speed clips
Owner's manual (English/ Spanish/ French/ German/ Italian/ Portuguese/ 21 Others)
Template on the box

Researched by Crutchfield's Pat M.

Features & specs

Features and Specs
Size	12-inch
Impedance (Ohms)	2, 8
Cone Material	Mineral-injected Paper
Surround Material	Butyl Rubber
Basket Material	Aluminum Alloy
Grille	None included
Free-Air	No
Dual Voice Coil	Yes
Sensitivity	86 dB at 1 watt
Frequency Response	---
Max RMS Power Handling	600
Peak Power Handling (Watts)	1200
Top Mount Depth (inches)	6 7/16
Bottom Mount Depth (inches)	N/A
Cutout Diameter or Length (inches)	11 1/4
Frame Width	12.627
Frame Length	12.627
Vas (liters)	74
Fs (Hz)	24
Qts	0.42
Xmax (millimeters)	17
Parts Warranty	2 Years
Labor Warranty	2 Years
Box Requirements
Ideal Sealed Box Volume (cubic feet)	0.99
Minimum Sealed Box Volume (cubic feet)	N/A
Maximum Sealed Box Volume (cubic feet)	N/A
Ideal Ported Box Volume (cubic feet)	1.27
Minimum Ported Box Volume (cubic feet)	N/A
Maximum Ported Box Volume (cubic feet)	N/A
Port diameter (inches)	N/A
Port length (inches)	N/A

Product Research

Features

Dual 4Ω Voice Coils: This woofer features two 4Ω voice coils to offer wiring flexibility. When the voice coils are wired in parallel, the woofer presents a 2Ω load. When the voice coils are wired in series, the woofer presents an 8Ω load.

Terminals: The spring post terminals will accept pin connectors, single banana plugs (but not dual), and bare wire up to 8 gauge.

Boundary Free Surround: This technology provides more cone surface area than other speakers of the same size, enabling it to move more air. The surrounds are made of butyl rubber, ensuring thermal and mechanical linearity.

Sealed Box: Hertz recommends a sealed enclosure volume of 28 liters (0.99 ft³). Sealed enclosures provide the most control over a woofer, will handle a lot of power, and provide accurate sonic reproduction, making them suitable for all types of music.

Ported Box: Hertz recommends a ported enclosure volume of 36 liters (1.27 ft³) with one 352mm (13.86") x 45mm (1.77") x 700mm (27.56) long port. Ported (or vented) enclosures typically provide better overall efficiency than sealed, maximizing bass output for a given amplifier.

Crossover: When using a sealed enclosure, Hertz recommends the low pass crossover point be 70 Hz - 80 Hz and a subsonic filter at 15 Hz. With a ported enclosure, the crossover point is lowered to 60 Hz - 70 Hz and the subsonic filter raised to 20 Hz. A 24 dB/octave slope is recommended for all crossovers.

Loading accessories...

2 questions already asked

Do you sell a single empty enclosure the sub will work with?

jay Jan 06, 2022

1 answer

At this time, we offer this sealed box that is a good match for this subwoofer: www.crutchfield.com/p_777BB1295S/item.html

jason Jan 08, 2022 (Staff)

Think this sub could handle 800 watts rms+?

bradley Apr 09, 2019

1 answer

I think so. When you hit 900+ you probably need to be careful.

casey Apr 18, 2019 (Staff)

Loading articles...

Frequently compared with

Current item

Loading...

Adding...

Hertz MP 300 D4.3

Mille Pro Series 12" subwoofer with dual 4-ohm voice coils

In stock

5.0 out of 5 stars
6 reviews

$649.99 each
Loading...

Adding...

JL Audio 12W3v3-4

W3v3 Series 12" 4-ohm subwoofer

In stock

5.0 out of 5 stars
75 reviews

$469.99 each
Loading...

Adding...

Rockford Fosgate Power T1D412

12" component subwoofer with selectable 2- or 8-ohm impedance

In stock

5.0 out of 5 stars
22 reviews

$539.99 each
Loading...

Adding...

JL Audio 12W6v3-D4

W6v3 Series 12" subwoofer with dual 4-ohm voice coils

On backorder

5.0 out of 5 stars
47 reviews

$949.99 each

Compare all details

Compare the sound

SpeakerCompare^™

Patented Virtual Audio^™ technology

Brand

Model

Please turn active noise cancelling off for best results

Don't see your headphones?
Rent our Listening Kit

SpeakerCompare^™ is protected by patents and patent applications owned by Crutchfield Corporation.

SpeakerCompare^™

Patented Virtual Audio^™ technology

Audition speakers before you buy

SpeakerCompare simulates the sound of home and car speakers through your headphones. It lets you compare sonic characteristics between speakers so that you can make a more informed shopping decision.

To get started: For the best sound comparison, we recommend selecting your brand and model of headphones in the right-hand column, or if your headphones aren't listed, you can rent one of our Listening Kits.

SpeakerCompare^™ is protected by patents and patent applications owned by Crutchfield Corporation.

Start here

SpeakerCompare^™

Please turn active noise cancelling off for best results

EQUAL
POWER

EQUAL
VOLUME

What to listen for

Track notes

Artist:

We're here to help

For free personalized advice, call 1-888-291-8923. Our Advisors have listened to most of the speakers we carry, and can help you make the best choice for your system.

We'd love to know what you think

Audition speakers before you buy

SpeakerCompare simulates the sound of home and car speakers through your headphones. It lets you compare sonic characteristics between speakers so that you can make a more informed shopping decision.

Why selecting your headphones is important

SpeakerCompare tailors your listening experience to the exact headphones you have, so that what you hear is comparable to auditioning speakers side-by-side in person. Knowing which model headphones you’re using lets us remove any sonic coloring from your experience.

Two different listening modes

In an actual listening room, you'd find that some speakers play louder than others when fed the same amount of power. In equal power mode, you'll hear these differences in loudness as they naturally occur between speakers.

In equal volume mode, we've made the loudness of each speaker about the same. This gives you a more direct comparison of subtle voicing differences between speakers.

Nothing beats listening to speakers in your space

SpeakerCompare gives you a sense of the sonic differences. But performance in the real world is affected by the acoustics of your car or home, your choice of amplification, and your source material. We still believe that the gold standard for auditioning speakers is hearing them in your own environment — that’s why we offer a 60-day money-back guarantee.

Our Listening Kit

To help you choose the right speakers, we recommend using Crutchfield’s SpeakerCompare Listening Kit. It includes a pair of studio-quality headphones, and a guide to getting the most out of your session, and a few other necessary items. We’ve carefully chosen the components of this kit to ensure a crystal-clear listening experience. It’s available for a nominal rental fee, and includes a $25 Crutchfield merchandise credit.

Request a kit