Some smaller enclosure 1000 watt subs are the TC Audio T1000 and Sundown X. Ed is testing the 18 and will continue testing it for about 2 weeks. The Sundown X will be fine in 4 cubes each. They're upcoming. I talked to Jacob about it
If the gain knob and sw level do the same thing, why does it matter which you use? Actually, if the gain on the knob is down, you won't get much power regardless