After months of rumors, Bose have released details of the new L1 Model II system:
http://www.bose.com/controller?event=VIEW_...p;src=musicians
Quickly scanning through the info, and the forums, so far I have found the following differences between the Bose L1 Model II system and the original L1:
The power base of the new Model II is smaller and lighter - due to folding legs.
The new Model II is lower power (500W total as opposed to 750W for the original) but Bose claim that they "get the same acoustic output as the Classic with light weight using some cutting edge power amplifiers" and "We were able to do this by optimizing the total system design and better matching the amplifiers to the speakers". - Sounds like BS, but it could be that that the Model II has higher efficiency drivers.
The new Model II is more expensive.
The new Model II uses the same B1 bass units.
The new Model II has improved dispersion over the (already excellent) dispersion of the original L1.
The new Model II only has a single line input with no eq as standard. To add extra inputs, eq, presets and the ability to directly connect mics, the additional T1 ToneMatch audio engine is needed. (The T1 ToneMatch audio engine can also be used with the original L1.)
The original L1 is also being replaced by a new "L1 Model I system". This looks like the original L1, but, as far as I can tell, has the following differences:
Same reduced power (now 500W, rather than 750W) but claimed same volume.
Same improved dispersion over the (already excellent) dispersion of the original L1.
Different L1 connections. - Although the power base and columns look similar, you can not plug the new columns into the old power base and vice versa. (Probably to protect new columns from the higher power output of the old power base.)
New Model I is compliant with European RoHS (Reduction of Hazardous Substances) directive. ie electronics would now be lead free.

