TRU SPEC Prefab Dual 8" Subwoofer Enclosure 15" Subwoofers 167 mH at 1 kHz

167 mH at 1 kHz Mechanical Mass Without Air Mmd 11

4D is made to deliver 2 x 400W RMS @ 4-Ohms Bridge

Enthusiasts looking for great sound will really love this product

Sensitivity: 87dB

TRU SPEC Prefab Dual 8" Subwoofer Enclosure 15" Subwoofers 167 mH at 1 kHzCUSTOM BOX PERFORMANCE, BUDGET FRIENDLY PRICE TRU SPEC PREFAB DUAL 8" Material: MDF Box External DimensionsWidth Height Depth 26. 00" 11. 00" 14. 79" Material Thickness 0. 75" Net Internal Volume 1. 30 ft3 Tuning Frequency 35 Hz Port Area 18. 00 inch2 Cutout Diameter: 7. 45" Flush Trim Diameter: 9" Also fits the following 8" Subwoofers and are close to recommended specifications: Deaf Bonce Machete MF 8" Subwoofer DC Audio M3 8" Subwoofer CT Sounds