CF1840JD Basic Parameters: Vas: 113.9; Qts: 0.44; Fs: 44.20; SPL: 98.00
Number of drivers: 2
Box type: Vented – 0.195 m length, 12.00 x 90.00 cm rectangle
Box size: 1.5 inch thickness for solid construction.
SPL inside the box at 1000w (approximate): 131 dB.
Speakers connected in parallel to obtain 4 ohms.
Check out the full design information in the attached PDF.