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Measured at small signal levels per AES standards
Parameters measured per AES2-1984 (r2003) standards. Small-signal parameters valid within linear operating region.
What do Fs, Qts, Vas, and Xmax mean?
Thiele-Small ParametersUpdated 2/7/2026
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The Down4Sound DOWN4SOUND DBz 18" SUBWOOFER - 4 OHM DVC | 1300W RMS is a car audio subwoofer made by Down4Sound. View full specifications and where to buy on this page.
The Down4Sound DOWN4SOUND DBz 18" SUBWOOFER - 4 OHM DVC | 1300W RMS typically sells for $490 to $600 depending on the retailer and variant. Check the "Where to Buy" section for current pricing from authorized dealers.
The Down4Sound DOWN4SOUND DBz 18" SUBWOOFER - 4 OHM DVC | 1300W RMS has an RMS power handling of 1300 watts. For optimal performance, match it with an amplifier that delivers power within this rating at your target impedance.
You can purchase the Down4Sound DOWN4SOUND DBz 18" SUBWOOFER - 4 OHM DVC | 1300W RMS from authorized dealers listed in the "Where to Buy" section on this page. We recommend buying from authorized retailers to ensure warranty coverage and genuine products.
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