Doing some testing for couple compaines but MAINLY for myself. Vehicle is a 2000 S-10 ext cab Xtreme. Still have lots of subs to try, and things to do to current ones. Sundown Audio NSv2 D1 with SPL coil- 3900rms, 151.3 @ 43hz Sundown Audio NSv1 D2 coil- 2300rms, 149.5 @ 45hz Atmos Exo D2 coil- 1600rms, 149.7 @ 44hz Cascade Omega- 1800rms. 148.4 @ 49hz Incrimintor Audo Warden- 3200rms 152.0 @ 43hz DC lvl4 xl with Spl coil- did not clamp, 151.0 @ 43hz This was just after one day of testing fast as possible to keep tempature and conditions close to same as possible. Lots more on the way!