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Massive Audio ECO12S4

500W Max (250W RMS) 12" ECO Series Single 4 Ohm Car Subwoofer

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• 500 Watts Max
• 250 Watts RMS
• Laminated Paper Cone
• Pressed Foam Surround
• Heavy Gauge Steel Basket with Industrial Texture Painting
• High Impedance Aluminum Former with EISV Voice Coil

Learn more about the eco12S4

We apologize

This item has been discontinued


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Description


Massive Audio brand icon

Authorized dealer

General Features:

  • 12" Single 4 Ohm Eco Series Subwoofer
  • Power Handling:
    • Peak: 500 watts
    • RMS: 250 watts
  • Recommended power range: 150 - 250 RMS
  • Laminated Paper Cone
  • Pressed Foam Surround
  • Poly Cotton Spider with Woven Round Tinsel Leads
  • High Impedance Aluminum Former with EISV Voice Coil
  • High Flux Y30 Strontium Ferrite Magnet
  • Heavy Gauge Steel Basket with Industrial Texture Painting
  • Top-mount depth: 5.59"
  • Cutout diameter: 11.26"
  • Sensitivity: 88.2 dB
  • Resonance Frequency (Fs): 37.5
  • Authorized Internet Dealer
  • 1-year Sonic Electronix Warranty
  • Priced Individually

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Massive Audio ECO12S4 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Massive Audio ECO12S4 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Massive Audio ECO12S4 Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 Massive Audio ECO12S4 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Series
ECO
Subwoofer Size
12"
Peak Power Handling
500 watts
RMS Power Handling
250 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
4 ohm
Sensitivity
88.2 dB
Xmax (millimeters)
7 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Laminate-Treated Paper
Woofer Surround
Foam
Magnet Structure
Single Stacked
Subwoofer Grille
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Optimum Sealed Box Volume
1.25 cubic feet
Minimum Ported Box Volume
1.5 cubic feet
Maximum Ported Box Volume
2.0 cubic feet
Top-Mount Depth (Mounting Depth)
5.59"
Cutout Diameter
11.26"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
37.5 Hz
Equivalent Compliance (Vas)
67.2 liters
Total Speaker Q Value (Qts)
0.88
Electrical Q Value (Qes)
1.04
Electrical Resistance of Voice Coil (Re)
3.2 ohm
Mechanical Q Value (Qms)
5.79
What is in the box?
Paperwork
User manual
WITB: Subwoofers
Subwoofer
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

Model Number:

ECO12S4

Weight:

8.80lbs

Internal SKU:

eco12S4

Internal Product ID:

134293

Customer Ratings & Reviews


Massive Audio ECO12S4 thumbnail image

5 star
75%
4 star
25%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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Not bad. Great for 70$ or less price point.

One of the best subs under 100$. For 60$ cant really beat it. Have it in a sealed box right now and it gets loud but it doesnt hit the lows at all. Then again, its in a sealed box. Im going to get a ported box to try with it soon. Fantastic woofer for the price.

By Anonymous on May 13, 2019 Checkmark Icon Verified purchase

30 found this helpful


Great Sub for the money!

I would highly recommend this Massive Audio ECO subwoofer. It sounds great in a ported box. It's louder than the 2 alpine bassline 12's in a foxbox in my 2005 Ram.

By Anonymous on September 19, 2018 Checkmark Icon Verified purchase

31 found this helpful


They are great speakers

It's not easy finding a good speaker for real bass. I guarantee if you get massive audio you will fall in love with them real Bass when I said bass I mean Bass I love it I love to hear my system and with massive you can really hear them get down try them you won't regret it they are low budget speakers and better than the rest I promise

By Anonymous on August 22, 2018

30 found this helpful


By kevin on January 10, 2025 Checkmark Icon Verified purchase




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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
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Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.