Below is the output of the Rythmik line of subs ...taken from Rythmik's home page.
Output comparison
Every one of our subwoofers has bass extension lower than 20hz. Our frequency response specification is based on -3db point which is far more stringent than +/-3db that other manufacturers have used. +/-3db is more like our -6db specification because the former is equivalent to 0db/-6db specification. Lower bass extension is also advantageous in multiple sub setup.
At 20 Hz, our subs vary in their maximum output capability. The output at 20 Hz is shown relative to F12.
F12: 0db (baseline)
F8/FM8: -1.5db
L12: -1db
LV12R: +2.5db
L22: + 4db
LVX12: +4db
E15HP: + 4db
F15HP: +4.5db
FVX15: +6.5db
FV15HP: +9.5db
F25: +8db
This post is made possible by the generous support of people like you and our sponsors:
Topic - For Rythmik sub fans - 3db 09:56:18 05/06/16 (0)