I am getting ready to upgrade the subwoofers in my truck. I plan to go with a pair of 10’s in an under-seat enclosure. The Ultimax and the Reference HO both do well in small enclosures, my current box has .65 cuft per side before woofer displacement.
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The Reference HO is dual 4 OHM, so I can wire 4 voice coils in parallel to get a one-ohm load. In the car audio world power at 1 OHM is very cheap. A decent 1200 watt amp can be had for well under $300. So I am leaning in that direction. The Ultimax is dual 2 OHM. I wonder if I would be better off to use a single ultimax in a ported enclosure.
Which one would you pick? I am also willing to entertain suggestions in the same price range and would love any advice you all may have.