The MMExact does not transform the signal and send it to the speaker, rather the MMExact becomes the speaker, where the input for the speaker is now located on the MMExact. The MMExact is simply an extension of the existing crossover, in either the MMTwo or MMThree, connected via bus wires. In the case of our flagship MMSeven, the crossover and Exact filter are all housed internally within the loudspeaker as one very large and very sophisticated circuit. There is nothing taken away from the signal of the amplifier, since the wires are in direct path to the drivers which are all connected in series with each other. This means no sonic loss, only gains in quality, phase, frequency accuracy, etc. The best way to view this is a speaker with a crossover so large and sophisticated that it had to spill outside of the speaker into another cabinet just to get it all to fit. However, keep in mind that it is still remains a first order series network, which is still very simple and pure by design, yielding a remarkably coherent sonic presentation.
I hope this clarifies and helps answer your questions.