18"

Single 18 in Ported box for Sundown M-X-Z-NS (Nightshade) Series Subwoofers- All 1 in Enclosure - Proudly USA Built. W/SUPREME TERMINALS

X-Series v.3 18" Subwoofer

Dual 18 in Ported box for Sundown M-X-Z-NS (Nightshade) Series Subwoofers- All 1 in Enclosure - Proudly USA Built.

U-Series v.2 18" Subwoofer