Well, I went out on a limb and decided to replace the burned up mosfets in the club 5501 with new ones from mouser electronics and solder them in. To my surprise the club 5501 is back from the dead and working great again. Only cost me $14 too. So now I might have to upgrade the front stage, which means maybe a new 4 channel, more powerful midbass woofers, and added midranges to keep up with the nice sounding Sundown SD3 10”
Interesting that the Rockford won out here, I thought for sure the SoundQubed or JBL would win.