So...I have been using the Ampeg BX410 (4 ohm version) with the Ampeg SVT3-PRO and it has been working great. HOWEVER...I am now needing to have a rig that I can use at the church as well as for concerts at other churches and venues. This rig works great but is too heavy and hard to load. I have been looking around and really like the TC Electronic RH & RS bass gear. I would appreciate feedback on those items and am always interested in other options...but i am leaning towards the TC gear. Situation: I need something that is as good and as powerful (or more powerful) as what I have...but lighter and easier to move. Most of the churches/venues are 350-700 seat buildings, will have pa support (2 JBL618XLF-S subs...on road only), still no pa support at home church. I would really appreciate any and all feedback. Here are some of my questions & concerns: 1) TC Electronics COMBO750? or COMBO 750 with additional RS210? or RH750 with 1 or 2 RS212 cabs? 2) Interested if combining RS210 and a RS212 is a good idea...what kind of benefits or hindrances. 3) How does the RH750 compare to the SVT3-PRO? 4) Is there a single TC cabinet (RS line) that is close to the performance and tone of the BXT 410 (other than their 410). 5) If the RS210 or RS212 can't compare alone...is it better to get (2) of the 210's or 212's or (1) of each? (I don't know if technology or design has made enough advances for a 2xsomething to do such a thing as compete with a 410.) 6) With PA support will it really matter? I appreciate your help!