To the untrained eye, an AV receiver may just look like a big black box that a bunch of TV and speaker wires run in and out of. Far more than a junction box for your go-to components like ...

Note that the box itself is 9.5cm high. That doesn't sound like a lot, but it might cause an issue if your TV doesn't have a stand that raises it up above that. When we went to see the Soundbox in ...