2 SI HT18 18″'s vs. 1 UM18-22 18" Ultimax
My sub situation right now is a Minimarty with 1 UM18-22 18" Ultimax powered by an Inuke 3000dsp (bridged mono @ 4ohms). It sounds great and I can't complain...of course more output is always appreciated since the room is large [around 4000 sq. ft.]
Since Stereo Integrity is offering free shipping on the HT18's now I'm wondering if I'd be doing myself a favor by building a 2nd minimarty (or marycube) and running 2 HT18's in stereo @ 2 ohms.
I imagine I could sell my one month old Ultimax for around $200, taking my cost of the HT18's from $318 to $118. Add about $100 for the cost of building a new enclosure and I'm out about $218.
So is going from 1 Ultimax to 2 HT18's worth it for $218? Specifically, will the output and quality be improved by adding either a 2nd minimarty or a martycube and going to the different speaker?