I would wait until closer to Labor Day for some sales. The Monolith subs have gone on sale for 20% off a few times, which has also stacked with the dual discount, which is an insanely good deal. Both the FV15HP and Monolith THX Ultra 15 will be a step up over the VTF-15H MK2, particularly for home theater. The HSU can keep up with the other two higher in range, but when you go below 20Hz that's where the HSU can't keep up in extension or output.For the money, currently on sale, the VTF-15H.2 is a good value at $2044, however.
Subs>RBH I-12e, I-12. HSU VTF-15H mk2. Monolith THX 12(x2)/THX 10(x2). XTZ 1X12. SVS PB-1000(x2). Speakers>JBL Studio 270/235c/230/225c, Arena 130/125c. Sony CS3/CS8/CS5. QA 3020i/3090Ci, 2020i/2000c. Monolith Cinema 5bs. Polk RTiA1/CSiA4. Other Audio>Sony MDR-Z7m2, MDR-V6, WH-XB700, XB32, XB31, XB22. Sennheiser HD58X, HD4.50, PC37X. SIVGA SV004. HyperX Cloud PS4. TB Stealth300. LG FH6, RK8, RK7, PK5, PH4. HK Onyx Studio4(x2).