A mate is looking to add some speakers to his apartment that he can use to stream from his phone via BT; doesn't expect anything flash, but wants something a step up from a portable BT speaker. I'd be looking for things along the lines of Aktimate's minis since they tend to be a great value pickup second hand, but then I remembered I've got a set of ribbon Behringer truth monitors sitting in storage at the old office. I don't have any use for them right now so I'm happy to sling them to my mate, but the interface I was using them with is exclusively USB input from a PC, so it's not much use to him. So I think what I'm looking for is a simple mains powered BT receiver that has a proper level control, preferably as physical knob so there's no chance of it doing stuff like defaulting to max level when you turn it back on or something like that. This Fiio one looks like the kind of thing, but wondering if there's much out there that's cheaper?