- 500W Max
- 100-250W Rated Power
- Polymer cone
- Butyl rubber surround
- Carbon composite basket
- Certified for marine use
- Frequency response: 26-200 Hz
- Sensitivity: 89 dB
- Top-mount depth: 4"
- Sealed box volume: 0.35 cubic feet
- Subwoofers are usually sold as a single unit unless otherwise noted.
*Warranty: Limited 30 Day Onlinecarstereo.com warranty.
Limited 30 Day warranty from Onlinecarstereo.com implies that repairs must be returned to Onlinecarstereo.com, not the manufacturer. More information can be found in our help section under returns & warranties.
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David From Lapeer, MI
These 8" subs were a GREAT addition to my system, and give the perfect balance for what I wanted in the sound. Not only do they respond lower than the average 8" sub, (down to 26 hz), to get that nice low bass; but they hit really hard and give a nice crisp 'punch' to maximize the overall bass experience. Great sub, great price, and great quality... Most people look for ways to cut-corners when looking for subs, thinking that it's all just "bass"; but you really DO need to be particular if you truly WANT that stellar-experience. Hats-off to the Polk MM840's.