Massive Audio SUMMO84S 8" 400W RMS Dual 4 Ohm Shallow Subwoofer - New Open Box

Marsoni

M251S

$109.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Massive Audio SUMMO84S 8" 400W RMS Dual 4 Ohm Shallow Subwoofer - New Open BoxNew Open Box. This Subwoofer is in new condition but the box has been opened. Overview At Massive Audio, Massive Audio aim to make unique designs to solve different challenges in audio. For example, Massive Audio approached the 10 & 12 shallow mount subwoofer market with the very cool UFO series. But what if you needed even more extreme space savings with a smaller sub, while still having great bass in your ride? Our all new Massive Audio SUMMO84S is

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
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Working with Asurion was an easy process. My previously covered milk frother stopped working, and they fully refunded it with no questions asked. All I had to do was ship the broken item back to them and they sent me a gift card. To cover the initial cost, no questions asked. The refund process was a very simple and painless.

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Reviewed in the United States on March 21, 2026