Hey Guys,

Designing a 70v distributed audio system for a commercial installation. I'm well aware 70V has limited sound quality issues but want to provide the best possible under this restriction.
There are 5 single point stereo speakers and 3 pairs of stereo in ceiling speakers involved.
I Want to get as good a quality sound as possible, so quality low impedance speakers will be used throughout.
Since a great deal of the response is lost in the transformers, can anyone suggest a make and model you've had luck with?
Also, Since on wall volume controls will be available to the client, will those transformers impede the sound quality as well? ( I suspect yes)
I know the natural response will be why don't you use a low impedance system in the first place?
The reason is this is a growing office and plans are to expand widely in the near future within the same building.

Thanks,
GP