Sekrit DS is a combined amp and streamer although it can be configured to work just as a streamer. The inbuilt amp is pretty decent and ideal for a first streamer/streaming system. Either connected to your amp or using the 50 watt (but good) inbuilt one. App driven so you don't need to see it and therefore it can be hidden.
Fixed or variable output. In built amp which can be used to make this a complete system or bypassed to enable this to be used just as a streamer.
Supported by Linn. Tidal, Spotify and Qobuz. Set up and use software are free.
Very good condition and running latest soft/firmware.