A practical sequence
List the inputs you already have
Photograph the rear panel and note which sockets are unused. A line-level analogue input is the easiest path. Do not connect a line output to a phono input: phono inputs expect a much smaller signal and apply different equalisation.
Choose one control point
Decide whether everyday volume will be controlled by the amplifier or by the streamer. For a traditional integrated amplifier, a fixed streamer output and the amplifier’s knob is usually the clearest arrangement. If using variable output, set a safe maximum and make sure everyone in the home understands it.
Check the service and network, not just the badge
Confirm that the current app supports your music service, phone platform and preferred control method. Ethernet can be useful when the router is nearby; good Wi-Fi is often enough for a single room. Multi-room is optional, not a reason to replace working equipment.
Plan for long use
Ask who supplies firmware, where release notes are published and what happens if the app or service changes. Before buying in Australia, identify the actual seller, dispatch location, return address and support route.
Sources
Current official material reviewed for this guide. Links open the original publisher.
Australian Competition and Consumer Commission — consumer rights and guarantees