Some hifi companies, like Boulder's PS Audio, recommend that balanced connection between components is the only way to go. Other companies don't offer that option at all.Duncan and Darren explain what all the hoopla is  regarding single ended versus balanced operation, bringing up some pros and cons for each and shedding light on the whole affair.From overly complex topologies to bank-breaking component cost to science-backed noise reduction, there are fine arguments on both sides. But there may be other reasons yet for an audiophile to make the choice between one or the other.Typically, the guys can't stay exactly on topic for too long.