Performance optimized down fire ported design: Delivers the flattest in-car bass curve for superior sound quality
Wide 25.0 sq in port area: Allows for lower loading and higher power handling
L wrap slot port construction: Reduces turbulence and improves frequency response
Cut-to-fit mounting system: Ensures secure, vibration-free installation in 3.504 inch spaces
Polyfill damping: Maintains consistent tuning and reduces unwanted resonances
Summarized by Shop
Proline X Performance Optimized Down Fire 12" Ported
A shallow twelve with the widest port and the flattest in-car curve of the three
1.49 cu ft net
Tuned 36.0 Hz
F3 36.6 Hz
L-wrap slot port
Cut for the Image Dynamics IDQS12
Built in Tennessee
1.49cu ft net
36.0Hz tuning
36.6Hz F3 anecho