Question: when is a hi-fi separates component not separate? When it's not functional apart from its sibling – which makes the R-840 amplifier a separate but the CD player not. The latter has its own power supply and mains lead but simply refuses to power up when not connected to the amp via the supplied data lead. The amp will work, but isn't so attractive on its own with effectively just the one line input, plus of course digital and analogue radio and the iPod dock.



Link: TechRadar