Most pro-grade 12" line arrays are bi-amped (active), but passive designs exist for smaller systems. A passive design requires:
Document ID: LA-12X-v1.0
Type: Passive 2-way, vented, trapezoidal
Intended Use: Portable/Fixed installed sound reinforcement 12 inch line array box design pdf
Assume single 12" driver with parameters: Vas = 80 L, Fs = 40 Hz, Qts = 0.35. Most pro-grade 12" line arrays are bi-amped (active),
(Use speaker design tools—LEAP, BassBox, WinISD—for precise results.) For a system to act as a line
For a system to act as a line source (rather than a point source), the height of the array must be large compared to the wavelength of the frequencies being reproduced.
A typical design PDF for a 12" line array element would specify the following components: