Martin Logan speakers

The Vista looks like the upgraded version of the older Aerius i model that I have and they are decent sounding speakers. The ESL speakers have a different sound from the mainstream voice coil design and are also very directional with a very narrow sweetspot. They are bi-polar by design so you need at least 3 feet space behind them to get a good soundstage. As for the power requirements, it all depends on your listening room size, how loud is you listen to your music but I don’t think anything less than a 50wpc 4 ohm capable amplifier will make them sound any good, regardless of the room size. I don’t see a 4 ohm spec for the VT130 but my guess is it’ll have a hard time delivering a tight bass as well as a crisp high octave. The midrange will probably sound real good. By the way, I think the VT130 is one of the coolest looking ARC gears. A real classic. 

The quality and the amount of bass on the models with passive woofers is very dependent on the room placement and the partnering amplifier. I have my Aerius i in room corners, about 3 feet in from the back wall and about 2 feet from side walls and about 12 feet apart and 12 feet from the listening chair. I do have a subwoofer in the room but I don't find the speaker bass lacking for most music and only use he subwoofer when listening at low volumes. I was driving them with a borrowed pair of Bryston 7B-ST mono blocks for a while and  the bass response from those 8" woofers was completely adequate. Most people have the speakers way into the room so the bass module can't couple with the room. If the room shape allows, they can be placed very close to the side walls without any issues since they don't really have much side-wall reflections. Just my experience.