HI Randal:
The WR-150 Wireless Speakers will not work with the OSD-ISS6. The Transmitter only has an input (no output connection) so once it is connected to a source it transmits to the main speaker which features an internal Wireless receiver and also Power Amplifier. A second satellite speaker is connected by a speaker wire.
We have any number of Rock speakers but they need to be hard wired back to the speaker selector.
Sorry about that
TL-2113