Sound Lab showed the speaker with a new back panel at the 2013 CES (THE Show actually) that made the speaker a *lot* easier to drive, and also sounding better (likely because it does not work the amps as hard).
Our 140-watt MA-1 drives it really well! In the past, you needed a set of MA-2s to do the same job. (FWIW, about 70% of our MA-2 production since the amp was introduced in 1990 has been on Sound Labs)
Since the introduction of the PX panel I have also heard good things about reliability from our customers. I think it very safe to say the Sound Lab is a state of the art speaker, certainly the best ESL out there, capable of real dynamic range and good well into the bottom octave- you can shake the walls with this one!
Our 140-watt MA-1 drives it really well! In the past, you needed a set of MA-2s to do the same job. (FWIW, about 70% of our MA-2 production since the amp was introduced in 1990 has been on Sound Labs)
Since the introduction of the PX panel I have also heard good things about reliability from our customers. I think it very safe to say the Sound Lab is a state of the art speaker, certainly the best ESL out there, capable of real dynamic range and good well into the bottom octave- you can shake the walls with this one!