Again, the test mule is my 2004 Silverado extended cab. Power will again be supplied by a Memphis Memphis Belle, MCH1300, at 1ohm nominal. Roughly 1100wrms, with the gains set with an o-scope to just clipping. Electrical is the big three in 1/0, a yellow top under the hood, and 1/0 Memphis wire throughout. Source unit is a Clarion DXZ955MC with HPF at 120hz and LPF set to 80hz. The enclosures used are a 1.25ft^3 net sealed affair and a down firing 2.0ft^3 ported box with a 4” port tuned to 34hz.