I was planning on using a Zapco C2K to drive my DD 3515 in my system overhaul. I did just come across an Orion XTR 2400 however. Looking across the Zapco and Orion manuals, I notice that Zapco says to run a 200 amp fuse with the 9.0, and Orion says to run a 300 amp fuse with the XTR 2400. Looking at those figures, either the Zapco is way more efficient, or the Orion puts out a lot more power, or a combination of the two. Which would you use?
Built in cooling fans
Size (19.5 x 8.75 x 2.375) vs Orion (25 x 10.25 x 2.25)
Cost significantly less
Increased headroom (possibly)