In a press release today Sound Exchange stated that via the Digital Media Association it has offered internet broadcasting a $2500 cap on the required $500 per channel advances. This offers appears to be of greatest benefit to custom radio services like Last.FM, Pandora and Slacker on whom listeners create tens of thousands of individualized channels.
The offer does not address many other broadcaster concerns including much higher per song payments. SoundExchange did claim that it was still negotiating with smaller and non-profit broadcasters for a lower rate structure. (pdf of press release)