The wireless capability does require the use of MartinLogan’s SWT-1 Subwoofer Wireless Transmitter at a cost of $120.  Formerly a favorite of home phones, the SWT-1 broadcasts signals to the subs on a 2.4GHz band, and searches for a channel without interference. The subs, as well as the wireless transmitter, will be shipping later on this month.  The Dynamo 700 will  retail at just under $700, while the Dynamo 1000 will sell for a suggested $995.