When the Streamit internet radio devices (Lisa or SIR) are used to stream audio from the internet, a reliable internet connection is required. A reliable connection ensures that the device can play constantly without audio drop.
Another important property of the connection is the download bandwidth, which is the maximum amount of data that can be transferred to the device over the internet connection.
How much bandwidth do you need for the proper operation of Streamit audio devices?
The bandwidth requirement is determined by the audio stream that the device will be playing (you also have to compensate for TCP overhead). Given that the Streamit players can stream up to 320 kbps, a connection with 512 kbps download speed should be enough to play all audio streams. This would be if the line was dedicated to the specific device.
If the device has to share the bandwidth with other network devices, you need to ensure that the SIR will have the minimum require bandwidth available at any time.