Features: Super low frequency divider, suitable for 2500W high-power subwoofer. Temperature resistant inductors bring strong and powerful bass effect. Double fixation to prevent displacement caused by sound resonance. The dedicated large capacitors for Sound provides a better Sound experience. Equipped with bass adjustment switching buton, the bass frequency can be freely adjusted. Pressing type terminals post, simply press to firmly connection. Specifications: Material: ABS+Metal Type: WEAH-91, WEAH-91A(optional) Size: approx. 160x118x60mm/6.29x4.64x2.36inch Applicable power: 2500W (WEAH-91), 1000W (WEAH-91A) Applicable impedance: 4~8 Upper limit frequency: 200Hz (WEAH-91), 180Hz (WEAH-91A) Package Includes: 1Pc Frequency Divider note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.