Sundown Audio E-10 D4 v.4 10" 500W RMS Dual 4-Ohm E Series Subwoofer. E10D4v4 - Sundown Audio 10" 500W RMS Dual 4-Ohm Subwoofer. Bottom-line; if you are looking for a great subwoofer option and do not want to break the bank the Sundown E-Series woofers are for you and these are the best E series made to date.
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