Simple Calculation for Speakers in Parallel. If all the speakers in parallel have the same impedance, then the calculation is easy. Simply divide the impedance by the number of speakers in parallel. Example 1: Four 8 ohm speakers in parallel: 8 divided by 4 = 2 ohms. Example 2: Two 4 ohms speakers in parallel: 4 divided by 2 = 2 ohms.
Definition of legato. : a smooth and connected manner of performance (as of music); also : a passage of music so performed.
In standard notation legato is indicated either with the word legato itself, or by a curved line over or under the notes that are to be joined in one legato group. Legato, like staccato, is a kind of articulation. Sempre means always i.e. continuously in this case.