Berliner Lautsprecher Orchester (since 2013) developed by Wolfgang Heiniger. This orchestra has not a symmetrical set-up, in contrary to the Acousmonium.
Birgit Ulher performing with a small loudspeaker inside the trumpet mute:
Stircrazer IV (2015) by Sabrina Schroeder, using tactile transducers on bass drums:
Andrea Neumann performing on her Inside Piano:
frequencies (a / friction) (2015) by Nicolas Bernier
Different Version of LapStrap (since 2010) by Steffi Weismann, all using portable loudspeakers: