- 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: 1 Year Onlinecarstereo.com warranty.
1 Year 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.
What's not covered : Misuse, abuse, defacement, physical damage of any kind, and improper installation / operation. Video and multimedia equipment with damaged or cracked screens.Subwoofers and speakers are not warranted against being blown, burned or abused.
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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.