My experience with ESLs is that they can be really seamless and fast, with great tonal balance and excellent soundstage width and depth.
IMO the state of the art in ESLs are the Sound Labs. A recent change in their electronics has made them much easier to drive. They are also moderate impedance (which was the case with all ESLs in the old days) such that they are easily driven with tube amps, although you do need some power to really make them go. However 200 watts in a tube amp is enough for all but the biggest rooms. If you run solid state, you may need about 600 watts to do the same work, on account of the fact that the impedance curve allows a 200 watt tube amp to make about the same amount of power as a 600 watt transistor amp.
The Sound Lab is one of the few that will go down to 20Hz and shake the walls.
IMO the state of the art in ESLs are the Sound Labs. A recent change in their electronics has made them much easier to drive. They are also moderate impedance (which was the case with all ESLs in the old days) such that they are easily driven with tube amps, although you do need some power to really make them go. However 200 watts in a tube amp is enough for all but the biggest rooms. If you run solid state, you may need about 600 watts to do the same work, on account of the fact that the impedance curve allows a 200 watt tube amp to make about the same amount of power as a 600 watt transistor amp.
The Sound Lab is one of the few that will go down to 20Hz and shake the walls.