Rl-i 10"

[Remotia 10+ year member]

I was just looking at this and to me it looks like the RL-i drops way off at the low notes. I thought that sound quality subwoofer were supposd to have very leval slopes. My Kappa Perfect doesnt drop near as much when it reaches the lows. Am I missunderstanding this chart or what? http://www.soundsplinter.com/rli_series/rli_10_inch_DIY_car_and_home_subwoofer_driver_information.html

The RL-i has quite a bit of excursion and will play 20hz, even lower just fine if you tune it. I have seen drivers using the same motor hit 12hz almost linear. There is no bottom end for on that platform. Its all about how you EQ it and tune it.

 

[helotaxi 5,000+ posts]

Ahh forgot abt cabin gain. Well what the hell does butterworth, quasi bessel, and enhanced q mean?

Just different alignments that describe the response curve. Butterworth has the smoothest response and best group delay and phase response. This is at the cost of low freq extension. That loss won't really be noticable. If you want the most accurate sub bas response stick with a Butterworth alignment. A Bessel will give you a bump in response just prior to rolloff. It will give you a litle extra output down low but rollof is quicker once is begins and phase response and group delay suffer. Enhanced Q has and even higher bump and an even faster rolloff.