Electrostatics usually benefit greatly from biamping (I take you have a hybrid design like Martin Logan). The speaker, model, and whether or not it is applicable for active cross-over are all important. Some speakers are really not designed for active bi-amping (they can be biamped but in a passive configuration meaning the whole signal goes to high and low inputs on the speaker and the speaker cross-over works as a filter for high and low respectively).
If you could give us a little more information on the equipment you are currently using and if you intend on using your current amps or start a new that would make it a little easier for giving advice.
If you could give us a little more information on the equipment you are currently using and if you intend on using your current amps or start a new that would make it a little easier for giving advice.