ECO12S4 - 12" 250 Watts RMS Single 4 Ohm Subwoofer

Sale price$ 59.99


Let’s get right to it, the Massive Audio ECO12S4 is such an amazing value, we are questioning our sanity.  Stealing a few design ques from its big brothers the MMA104 and TKO104, the ECO12S4 will blow you away for the price.  Sure, you can think of the “ECO” in ECO12S4 as economical, but just because you are getting a cheap price, does not mean we cheaped out on the quality or performance.  

Quite possibly the nicest 250 watt rms subwoofer on the market, the Massive Audio ECO12S4 has been a go-to subwoofer choice for quality installs on a budget for a few years now.  While on the extreme other end of the audio world, there are the huge audio builds with multiple ECO12S4’s in the same enclosure for a mountain of bass fun.  The Massive Audio ECO12S4 is way above what  a starter subwoofer should be.  Clean bass notes, very modest power needs, and crazy low pricing, all in the same package.

At first look, our ECO12S4 looks like it costs a lot more than what it does.  The modest power rating of 250 watts isn’t a bad thing at all.  It means you can save money on your amplifier and still have great bass without spending much money at all.  Crisp sounding bass notes from the ECO12S4 make it a favorite for people who really care about the music as much as they care about saving money.  

We gave the ECO12S4 a laminated paper cone, for not just smooth looks, but very accurate sound all the way down into the 37hz range.  The standard red stitching through the cone into the surround gives the ECO12S4 a durable design and appearance.  Speaking of looks, the custom stamped, with side venting, basket really gives the ECO12S4 a sweet touch.  Using an EISV voice coil, wrapped on an aluminum former, inside a stout motor, will keep the notes accurate so that you will always hear those lows of your favorite music.  Woven leads into the poly cotton spider, make sure you have no mechanical noise to affect your music.

Our ECO12S4 was always meant to set itself apart in the starter level sub world, not just in looks, but in performance, and value.  We wanted the ECO12S4 to be the easiest way into MASSIVE bass for a tiny price, and that's exactly what we achieved .

  • Sealed: 1.2 cubes after displacement (0.075)
  • Ported: 1.75  cubes after displacement, @ 37hz, 26 square inches of port area


  • Heavy Gauge Steel Basket with Industrial Texture Painting
  • High Flux Y30 Strontium Ferrite Magnet
  • High Impedance Aluminum Former with EISV Voice Coil
  • Poly Cotton Spider with Woven Round Tinsel Leads
  • Laminated Paper Cone Surrounded with Pressed Foam 
  • Round Shape PP Vacuum Dust Cap
  • 6mm Top Plate
Size 12"
Peak Watts 500
RMS Watts 250
Cone Laminated Paper
Voice Coil High Impedance Aluminum Former with EISV - Single 4 Ohm 
Surround Pressed Foam
Magnet High Flux Y30 Strontium Ferrite
Basket Heavy Gauge Steel
Tinsel Leads Poly Cotton Spider
X-Max 7mm
SPL 88.2 dB
Ported Box 14" H X 18" D x 14" W
Sealed Box 1.25 ft3